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OPEN SOURCE SOFTWARE
Page protected with pending changes Open-source software From Wikipedia, the free encyclopedia Jump to navigationJump to search Open-source software shares similarities with free software and is part of the broader term free and open-source software. For other uses, see OSS. For broader coverage of this topic, see Open-source-software movement.

A screenshot of Manjaro running the Cinnamon desktop environment, Firefox accessing Wikipedia which uses MediaWiki, LibreOffice Writer, Vim, GNOME Calculator, VLC and Nemo file manager, all of which are open-source software. Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose.[1][2] Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software.[3]

Open-source software development can bring in diverse perspectives beyond those of a single company. A 2008 report by the Standish Group stated that adoption of open-source software models has resulted in savings of about $60 billion per year for consumers.[4][5]

Open source code can be used for studying and allows capable end users to adapt software to their personal needs in a similar way user scripts and custom style sheets allow for web sites, and eventually publish the modification as a fork for users with similar preferences, and directly submit possible improvements as pull requests.

Contents 1	History 1.1	End of 1990s: Foundation of the Open Source Initiative 2	Definitions 2.1	Open-source software licensing 2.2	Certifications 3	Open-source software development 3.1	Development model 3.2	Advantages and disadvantages 3.3	Development tools 3.4	Organizations 3.5	Funding 4	Comparisons with other software licensing/development models 4.1	Closed source / proprietary software 4.2	Free software 4.3	Open-source versus source-available 4.4	Open-sourcing 5	Current applications and adoption 5.1	Widely used open-source software 6	Extensions for non-software use 7	See also 8	References 9	Further reading 10	External links History Further information: History of free and open-source software End of 1990s: Foundation of the Open Source Initiative In the early days of computing, programmers and developers shared software in order to learn from each other and evolve the field of computing. Eventually, the open-source notion moved to the wayside of commercialization of software in the years 1970–1980. However, academics still often developed software collaboratively. Examples are Donald Knuth in 1979 with the TeX typesetting system[6] and Richard Stallman in 1983 with the GNU operating system.[7] In 1997, Eric Raymond published The Cathedral and the Bazaar, a reflective analysis of the hacker community and free-software principles. The paper received significant attention in early 1998, and was one factor in motivating Netscape Communications Corporation to release their popular Netscape Communicator Internet suite as free software. This source code subsequently became the basis behind SeaMonkey, Mozilla Firefox, Thunderbird and KompoZer.

Netscape's act prompted Raymond and others to look into how to bring the Free Software Foundation's free software ideas and perceived benefits to the commercial software industry. They concluded that FSF's social activism was not appealing to companies like Netscape, and looked for a way to rebrand the free software movement to emphasize the business potential of sharing and collaborating on software source code.[8] The new term they chose was "open source", which was soon adopted by Bruce Perens, publisher Tim O'Reilly, Linus Torvalds, and others. The Open Source Initiative was founded in February 1998 to encourage use of the new term and evangelize open-source principles.[9]

While the Open Source Initiative sought to encourage the use of the new term and evangelize the principles it adhered to, commercial software vendors found themselves increasingly threatened by the concept of freely distributed software and universal access to an application's source code. Microsoft executive Jim Allchin publicly stated in 2001 that "open source is an intellectual property destroyer. I can't imagine something that could be worse than this for the software business and the intellectual-property business."[10] However, while Free and open-source software has historically played a role outside of the mainstream of private software development, companies as large as Microsoft have begun to develop official open-source presences on the Internet. IBM, Oracle, Google, and State Farm are just a few of the companies with a serious public stake in today's competitive open-source market. There has been a significant shift in the corporate philosophy concerning the development of FOSS.[11]

The free-software movement was launched in 1983. In 1998, a group of individuals advocated that the term free software should be replaced by open-source software (OSS) as an expression which is less ambiguous[12][13][14] and more comfortable for the corporate world.[15] Software developers may want to publish their software with an open-source license, so that anybody may also develop the same software or understand its internal functioning. With open-source software, generally, anyone is allowed to create modifications of it, port it to new operating systems and instruction set architectures, share it with others or, in some cases, market it. Scholars Casson and Ryan have pointed out several policy-based reasons for adoption of open source – in particular, the heightened value proposition from open source (when compared to most proprietary formats) in the following categories:

Security Affordability Transparency Perpetuity Interoperability Flexibility Localization – particularly in the context of local governments (who make software decisions). Casson and Ryan argue that "governments have an inherent responsibility and fiduciary duty to taxpayers" which includes the careful analysis of these factors when deciding to purchase proprietary software or implement an open-source option.[16] The Open Source Definition presents an open-source philosophy and further defines the terms of use, modification and redistribution of open-source software. Software licenses grant rights to users which would otherwise be reserved by copyright law to the copyright holder. Several open-source software licenses have qualified within the boundaries of the Open Source Definition. The most prominent and popular example is the GNU General Public License (GPL), which "allows free distribution under the condition that further developments and applications are put under the same licence", thus also free.[17]

The open source label came out of a strategy session held on April 7, 1998, in Palo Alto in reaction to Netscape's January 1998 announcement of a source code release for Navigator (as Mozilla). A group of individuals at the session included Tim O'Reilly, Linus Torvalds, Tom Paquin, Jamie Zawinski, Larry Wall, Brian Behlendorf, Sameer Parekh, Eric Allman, Greg Olson, Paul Vixie, John Ousterhout, Guido van Rossum, Philip Zimmermann, John Gilmore and Eric S. Raymond.[18] They used the opportunity before the release of Navigator's source code to clarify a potential confusion caused by the ambiguity of the word "free" in English.

Many people claimed that the birth of the Internet, since 1969, started the open-source movement, while others do not distinguish between open-source and free software movements.[19]

The Free Software Foundation (FSF), started in 1985, intended the word "free" to mean freedom to distribute (or "free as in free speech") and not freedom from cost (or "free as in free beer"). Since a great deal of free software already was (and still is) free of charge, such free software became associated with zero cost, which seemed anti-commercial.[8]

The Open Source Initiative (OSI) was formed in February 1998 by Eric Raymond and Bruce Perens. With at least 20 years of evidence from case histories of closed software development versus open development already provided by the Internet developer community, the OSI presented the "open source" case to commercial businesses, like Netscape. The OSI hoped that the use of the label "open source", a term suggested by Christine Peterson[7][20] of the Foresight Institute at the strategy session, would eliminate ambiguity, particularly for individuals who perceive "free software" as anti-commercial. They sought to bring a higher profile to the practical benefits of freely available source code, and they wanted to bring major software businesses and other high-tech industries into open source. Perens attempted to register "open source" as a service mark for the OSI, but that attempt was impractical by trademark standards. Meanwhile, due to the presentation of Raymond's paper to the upper management at Netscape—Raymond only discovered when he read the press release,[21] and was called by Netscape CEO Jim Barksdale's PA later in the day—Netscape released its Navigator source code as open source, with favorable results.[22]

Definitions

The logo of the Open Source Initiative The Open Source Initiative's (OSI) definition is recognized by several governments internationally[23] as the standard or de facto definition. In addition, many of the world's largest open-source-software projects and contributors, including Debian, Drupal Association, FreeBSD Foundation, Linux Foundation, OpenSUSE Foundation, Mozilla Foundation, Wikimedia Foundation, Wordpress Foundation have committed[24] to upholding the OSI's mission and Open Source Definition through the OSI Affiliate Agreement.[25]

OSI uses The Open Source Definition to determine whether it considers a software license open source. The definition was based on the Debian Free Software Guidelines, written and adapted primarily by Perens.[26][27][28] Perens did not base his writing on the "four freedoms" from the Free Software Foundation (FSF), which were only widely available later.[29]

Under Perens' definition, open source is a broad software license that makes source code available to the general public with relaxed or non-existent restrictions on the use and modification of the code. It is an explicit "feature" of open source that it puts very few restrictions on the use or distribution by any organization or user, in order to enable the rapid evolution of the software.[30]

Despite initially accepting it,[31] Richard Stallman of the FSF now flatly opposes the term "Open Source" being applied to what they refer to as "free software". Although he agrees that the two terms describe "almost the same category of software", Stallman considers equating the terms incorrect and misleading.[32] Stallman also opposes the professed pragmatism of the Open Source Initiative, as he fears that the free software ideals of freedom and community are threatened by compromising on the FSF's idealistic standards for software freedom.[33] The FSF considers free software to be a subset of open-source software, and Richard Stallman explained that DRM software, for example, can be developed as open source, despite that it does not give its users freedom (it restricts them), and thus doesn't qualify as free software.[34]

Open-source software licensing Main article: Open-source license Further information: Free software license See also: Free and open-source software § Licensing, and Software license When an author contributes code to an open-source project (e.g., Apache.org) they do so under an explicit license (e.g., the Apache Contributor License Agreement) or an implicit license (e.g. the open-source license under which the project is already licensing code). Some open-source projects do not take contributed code under a license, but actually require joint assignment of the author's copyright in order to accept code contributions into the project.[35]

Examples of free software license / open-source licenses include Apache License, BSD license, GNU General Public License, GNU Lesser General Public License, MIT License, Eclipse Public License and Mozilla Public License.

The proliferation of open-source licenses is a negative aspect of the open-source movement because it is often difficult to understand the legal implications of the differences between licenses. With more than 180,000 open-source projects available and more than 1400 unique licenses, the complexity of deciding how to manage open-source use within "closed-source" commercial enterprises has dramatically increased. Some are home-grown, while others are modeled after mainstream FOSS licenses such as Berkeley Software Distribution ("BSD"), Apache, MIT-style (Massachusetts Institute of Technology), or GNU General Public License ("GPL"). In view of this, open-source practitioners are starting to use classification schemes in which FOSS licenses are grouped (typically based on the existence and obligations imposed by the copyleft provision; the strength of the copyleft provision).[36]

An important legal milestone for the open source / free software movement was passed in 2008, when the US federal appeals court ruled that free software licenses definitely do set legally binding conditions on the use of copyrighted work, and they are therefore enforceable under existing copyright law. As a result, if end-users violate the licensing conditions, their license disappears, meaning they are infringing copyright.[37] Despite this licensing risk, most commercial software vendors are using open-source software in commercial products while fulfilling the license terms, e.g. leveraging the Apache license.[38]

Certifications Certification can help to build user confidence. Certification could be applied to the simplest component, to a whole software system. The United Nations University International Institute for Software Technology,[39] initiated a project known as "The Global Desktop Project". This project aims to build a desktop interface that every end-user is able to understand and interact with, thus crossing the language and cultural barriers. The project would improve developing nations' access to information systems. UNU/IIST hopes to achieve this without any compromise in the quality of the software by introducing certifications.[40]

Open-source software development Main article: Open-source software development model Development model In his 1997 essay The Cathedral and the Bazaar,[41] open-source evangelist Eric S. Raymond suggests a model for developing OSS known as the bazaar model. Raymond likens the development of software by traditional methodologies to building a cathedral, "carefully crafted by individual wizards or small bands of mages working in splendid isolation".[41] He suggests that all software should be developed using the bazaar style, which he described as "a great babbling bazaar of differing agendas and approaches."[41]

In the traditional model of development, which he called the cathedral model, development takes place in a centralized way. Roles are clearly defined. Roles include people dedicated to designing (the architects), people responsible for managing the project, and people responsible for implementation. Traditional software engineering follows the cathedral model.

The bazaar model, however, is different. In this model, roles are not clearly defined. Gregorio Robles[42] suggests that software developed using the bazaar model should exhibit the following patterns:

Users should be treated as co-developers The users are treated like co-developers and so they should have access to the source code of the software. Furthermore, users are encouraged to submit additions to the software, code fixes for the software, bug reports, documentation, etc. Having more co-developers increases the rate at which the software evolves. Linus's law states, "Given enough eyeballs all bugs are shallow." This means that if many users view the source code, they will eventually find all bugs and suggest how to fix them. Note that some users have advanced programming skills, and furthermore, each user's machine provides an additional testing environment. This new testing environment offers the ability to find and fix a new bug. Early releases The first version of the software should be released as early as possible so as to increase one's chances of finding co-developers early. Frequent integration Code changes should be integrated (merged into a shared code base) as often as possible so as to avoid the overhead of fixing a large number of bugs at the end of the project life cycle. Some open-source projects have nightly builds where integration is done automatically on a daily basis. Several versions There should be at least two versions of the software. There should be a buggier version with more features and a more stable version with fewer features. The buggy version (also called the development version) is for users who want the immediate use of the latest features, and are willing to accept the risk of using code that is not yet thoroughly tested. The users can then act as co-developers, reporting bugs and providing bug fixes. High modularization The general structure of the software should be modular allowing for parallel development on independent components. Dynamic decision-making structure There is a need for a decision-making structure, whether formal or informal, that makes strategic decisions depending on changing user requirements and other factors. Compare with extreme programming. Data suggests, however, that OSS is not quite as democratic as the bazaar model suggests. An analysis of five billion bytes of free/open-source code by 31,999 developers shows that 74% of the code was written by the most active 10% of authors. The average number of authors involved in a project was 5.1, with the median at 2.[43]

Advantages and disadvantages Open-source software is usually easier to obtain than proprietary software, often resulting in increased use. Additionally, the availability of an open-source implementation of a standard can increase adoption of that standard.[44] It has also helped to build developer loyalty as developers feel empowered and have a sense of ownership of the end product.[45]

Moreover, lower costs of marketing and logistical services are needed for OSS. It is a good tool to promote a company's image, including its commercial products.[46] The OSS development approach has helped produce reliable, high quality software quickly and inexpensively.[47]

Open-source development offers the potential for a more flexible technology and quicker innovation. It is said to be more reliable since it typically has thousands of independent programmers testing and fixing bugs of the software. Open source is not dependent on the company or author that originally created it. Even if the company fails, the code continues to exist and be developed by its users. Also, it uses open standards accessible to everyone; thus, it does not have the problem of incompatible formats that may exist in proprietary software.

It is flexible because modular systems allow programmers to build custom interfaces, or add new abilities to it and it is innovative since open-source programs are the product of collaboration among a large number of different programmers. The mix of divergent perspectives, corporate objectives, and personal goals speeds up innovation.[48]

Moreover, free software can be developed in accordance with purely technical requirements. It does not require thinking about commercial pressure that often degrades the quality of the software. Commercial pressures make traditional software developers pay more attention to customers' requirements than to security requirements, since such features are somewhat invisible to the customer.[49]

It is sometimes said that the open-source development process may not be well defined and the stages in the development process, such as system testing and documentation may be ignored. However this is only true for small (mostly single programmer) projects. Larger, successful projects do define and enforce at least some rules as they need them to make the teamwork possible.[50][51] In the most complex projects these rules may be as strict as reviewing even minor change by two independent developers.[52]

Not all OSS initiatives have been successful; for example, SourceXchange and Eazel.[45] Software experts and researchers who are not convinced by open source's ability to produce quality systems identify the unclear process, the late defect discovery and the lack of any empirical evidence as the most important problems (collected data concerning productivity and quality).[53] It is also difficult to design a commercially sound business model around the open-source paradigm. Consequently, only technical requirements may be satisfied and not the ones of the market.[53] In terms of security, open source may allow hackers to know about the weaknesses or loopholes of the software more easily than closed-source software. It depends on control mechanisms in order to create effective performance of autonomous agents who participate in virtual organizations.[54]

Development tools In OSS development, tools are used to support the development of the product and the development process itself.[55]

Revision control systems such as Concurrent Versions System (CVS) and later Subversion (SVN) and Git are examples of tools, often themselves open source, help manage the source code files and the changes to those files for a software project.[56] The projects are frequently stored in "repositories" that are hosted and published on source-code-hosting facilities such as Launchpad, GitHub, GitLab, and SourceForge.[57]

Open-source projects are often loosely organized with "little formalised process modelling or support", but utilities such as issue trackers are often used to organize open-source software development.[55] Commonly used bugtrackers include Bugzilla and Redmine.[58]

Tools such as mailing lists and IRC provide means of coordination among developers.[55] Centralized code hosting sites also have social features that allow developers to communicate.[57]

Organizations Some of the "more prominent organizations" involved in OSS development include the Apache Software Foundation, creators of the Apache web server; the Linux Foundation, a nonprofit which as of 2012 employed Linus Torvalds, the creator of the Linux operating system kernel; the Eclipse Foundation, home of the Eclipse software development platform; the Debian Project, creators of the influential Debian GNU/Linux distribution; the Mozilla Foundation, home of the Firefox web browser; and OW2, European-born community developing open-source middleware. New organizations tend to have a more sophisticated governance model and their membership is often formed by legal entity members.[59]

Open Source Software Institute is a membership-based, non-profit (501 (c)(6)) organization established in 2001 that promotes the development and implementation of open source software solutions within US Federal, state and local government agencies. OSSI's efforts have focused on promoting adoption of open-source software programs and policies within Federal Government and Defense and Homeland Security communities.[60]

Open Source for America is a group created to raise awareness in the United States Federal Government about the benefits of open-source software. Their stated goals are to encourage the government's use of open source software, participation in open-source software projects, and incorporation of open-source community dynamics to increase government transparency.[61]

Mil-OSS is a group dedicated to the advancement of OSS use and creation in the military.[62]

Funding Main article: Business models for open-source software Companies whose business centers on the development of open-source software employ a variety of business models to solve the challenge of how to make money providing software that is by definition licensed free of charge. Each of these business strategies rests on the premise that users of open-source technologies are willing to purchase additional software features under proprietary licenses, or purchase other services or elements of value that complement the open-source software that is core to the business. This additional value can be, but not limited to, enterprise-grade features and up-time guarantees (often via a service-level agreement) to satisfy business or compliance requirements, performance and efficiency gains by features not yet available in the open source version, legal protection (e.g., indemnification from copyright or patent infringement), or professional support/training/consulting that are typical of proprietary software applications.

Comparisons with other software licensing/development models Closed source / proprietary software Main article: Comparison of open-source and closed-source software The debate over open source vs. closed source (alternatively called proprietary software) is sometimes heated.

The top four reasons (as provided by Open Source Business Conference survey[63]) individuals or organizations choose open-source software are:

lower cost security no vendor 'lock in' better quality Since innovative companies no longer rely heavily on software sales, proprietary software has become less of a necessity.[64] As such, things like open-source content management system—or CMS—deployments are becoming more commonplace. In 2009,[65] the US White House switched its CMS system from a proprietary system to Drupal open source CMS. Further, companies like Novell (who traditionally sold software the old-fashioned way) continually debate the benefits of switching to open-source availability, having already switched part of the product offering to open source code.[66] In this way, open-source software provides solutions to unique or specific problems. As such, it is reported[67] that 98% of enterprise-level companies use open-source software offerings in some capacity.

With this market shift, more critical systems are beginning to rely on open-source offerings,[68] allowing greater funding (such as US Department of Homeland Security grants[68]) to help "hunt for security bugs." According to a pilot study of organizations adopting (or not adopting) OSS, the following factors of statistical significance were observed in the manager's beliefs: (a) attitudes toward outcomes, (b) the influences and behaviors of others, and (c) their ability to act.[69]

Proprietary source distributors have started to develop and contribute to the open-source community due to the market share shift, doing so by the need to reinvent their models in order to remain competitive.[70]

Many advocates argue that open-source software is inherently safer because any person can view, edit, and change code.[71] A study of the Linux source code has 0.17 bugs per 1000 lines of code while proprietary software generally scores 20–30 bugs per 1000 lines.[72]

Free software Main article: Alternative terms for free software See also: Comparison of free and open-source software licenses According to the Free software movement's leader, Richard Stallman, the main difference is that by choosing one term over the other (i.e. either "open source" or "free software") one lets others know about what one's goals are: "Open source is a development methodology; free software is a social movement."[33] Nevertheless, there is significant overlap between open source software and free software.[34]

The FSF[73] said that the term "open source" fosters an ambiguity of a different kind such that it confuses the mere availability of the source with the freedom to use, modify, and redistribute it. On the other hand, the "free software" term was criticized for the ambiguity of the word "free" as "available at no cost", which was seen as discouraging for business adoption,[74] and for the historical ambiguous usage of the term.[8][75][76]

Developers have used the alternative terms Free and Open Source Software (FOSS), or Free/Libre and Open Source Software (FLOSS), consequently, to describe open-source software that is also free software.[77] While the definition of open source software is very similar to the FSF's free software definition[78] it was based on the Debian Free Software Guidelines, written and adapted primarily by Bruce Perens with input from Eric S. Raymond and others.[79]

The term "open source" was originally intended to be trademarkable; however, the term was deemed too descriptive, so no trademark exists.[80] The OSI would prefer that people treat open source as if it were a trademark, and use it only to describe software licensed under an OSI approved license.[81]

OSI Certified is a trademark licensed only to people who are distributing software licensed under a license listed on the Open Source Initiative's list.[82]

Open-source versus source-available Main article: Source-available software Although the OSI definition of "open-source software" is widely accepted, a small number of people and organizations use the term to refer to software where the source is available for viewing, but which may not legally be modified or redistributed. Such software is more often referred to as source-available, or as shared source, a term coined by Microsoft in 2001.[83] While in 2007 two of Microsoft's Shared Source Initiative licenses were certified by the OSI, most licenses from the SSI program are still source-available only.[84]

Open-sourcing Open-sourcing is the act of propagating the open source movement, most often referring to releasing previously proprietary software under an open source/free software license,[85] but it may also refer programming Open Source software or installing Open Source software.

Notable software packages, previously proprietary, which have been open sourced include:

Netscape Navigator, the code of which became the basis of the Mozilla and Mozilla Firefox web browsers StarOffice, which became the base of the OpenOffice.org office suite and LibreOffice Global File System, was originally GPL'd, then made proprietary in 2001(?), but in 2004 was re-GPL'd. SAP DB, which has become MaxDB, and is now distributed (and owned) by MySQL AB InterBase database, which was open sourced by Borland in 2000 and presently exists as a commercial product and an open-source fork (Firebird) Before changing the license of software, distributors usually audit the source code for third party licensed code which they would have to remove or obtain permission for its relicense. Backdoors and other malware should also be removed as they may easily be discovered after release of the code.

Current applications and adoption Main article: Free and open-source software § Adoption See also: Linux adoption and Free software § Adoption "We migrated key functions from Windows to Linux because we needed an operating system that was stable and reliable – one that would give us in-house control. So if we needed to patch, adjust, or adapt, we could."

Official statement of the United Space Alliance, which manages the computer systems for the International Space Station (ISS), regarding why they chose to switch from Windows to Debian GNU/Linux on the ISS[86][87] Widely used open-source software Main article: List of free and open-source software packages Open-source software projects are built and maintained by a network of volunteer programmers and are widely used in free as well as commercial products.[38] Prime examples of open-source products are the Apache HTTP Server, the e-commerce platform osCommerce, internet browsers Mozilla Firefox and Chromium (the project where the vast majority of development of the freeware Google Chrome is done) and the full office suite LibreOffice. One of the most successful open-source products is the GNU/Linux operating system, an open-source Unix-like operating system, and its derivative Android, an operating system for mobile devices.[88][89] In some industries, open-source software is the norm.[90]

Extensions for non-software use Main article: Open source model See also: Open content and Open collaboration While the term "open source" applied originally only to the source code of software,[91] it is now being applied to many other areas[92] such as Open source ecology,[93] a movement to decentralize technologies so that any human can use them. However, it is often misapplied to other areas that have different and competing principles, which overlap only partially.

The same principles that underlie open-source software can be found in many other ventures, such as open-source hardware, Wikipedia, and open-access publishing. Collectively, these principles are known as open source, open content, and open collaboration:[94] "any system of innovation or production that relies on goal-oriented yet loosely coordinated participants, who interact to create a product (or service) of economic value, which they make available to contributors and non-contributors alike."[3]

This "culture" or ideology takes the view that the principles apply more generally to facilitate concurrent input of different agendas, approaches, and priorities, in contrast with more centralized models of development such as those typically used in commercial companies.[95]

See also Free and open-source software portal Comparison of free and open-source software licenses Free software Free software community Free software license Free software movement List of free and open-source software packages Open content Open-source hardware Open Source Initiative Open-source license Open-source software advocacy Open Source Software Institute Open-source software security Open-source video game All articles with titles containing "Open source" Proprietary software Shared source Timeline of free and open-source software References St. Laurent, Andrew M. (2008). Understanding Open Source and Free Software Licensing. O'Reilly Media. p. 4. ISBN 9780596553951. Corbly, James Edward (25 September 2014). "The Free Software Alternative: Freeware, Open Source Software, and Libraries". Information Technology and Libraries. 33 (3): 65. doi:10.6017/ital.v33i3.5105. ISSN 2163-5226. Levine, Sheen S.; Prietula, Michael J. (30 December 2013). "Open Collaboration for Innovation: Principles and Performance". Organization Science. 25 (5): 1414–1433. arXiv:1406.7541. doi:10.1287/orsc.2013.0872. ISSN 1047-7039. S2CID 6583883. Rothwell, Richard (5 August 2008). "Creating wealth with free software". Free Software Magazine. Archived from the original on 8 September 2008. Retrieved 8 September 2008. "Standish Newsroom — Open Source" (Press release). Boston. 16 April 2008. Archived from the original on 18 January 2012. Retrieved 8 September 2008. Gaudeul, Alexia (2007). "Do Open Source Developers Respond to Competition? The LaTeX Case Study". Review of Network Economics. 6 (2). doi:10.2202/1446-9022.1119. ISSN 1446-9022. S2CID 201097782. VM Brasseur (2018). Forge your Future with Open Source. Pragmatic Programmers. ISBN 978-1-68050-301-2. Karl Fogel (2016). "Producing Open Source Software – How to Run a Successful Free Software Project". O'Reilly Media. Retrieved 11 April 2016. But the problem went deeper than that. The word "free" carried with it an inescapable moral connotation: if freedom was an end in itself, it didn't matter whether free software also happened to be better, or more profitable for certain businesses in certain circumstances. Those were merely pleasant side effects of a motive that was, at its root, neither technical nor mercantile, but moral. Furthermore, the "free as in freedom" position forced a glaring inconsistency on corporations who wanted to support particular free programs in one aspect of their business, but continue marketing proprietary software in others. "History of the OSI". Opensource.org. B. Charny (3 May 2001). "Microsoft Raps Open-Source Approach". CNET. Jeffrey Voas, Keith W. Miller & Tom Costello. Free and Open Source Software. IT Professional 12(6) (November 2010), pg. 14–16. Eric S. Raymond. "Goodbye, "free software"; hello, "open source"". catb.org. The problem with it is twofold. First, ... the term "free" is very ambiguous ... Second, the term makes a lot of corporate types nervous. Kelty, Christpher M. (2008). "The Cultural Significance of free Software – Two Bits" (PDF). Duke University press – durham and london. p. 99. Prior to 1998, Free Software referred either to the Free Software Foundation (and the watchful, micromanaging eye of Stallman) or to one of thousands of different commercial, avocational, or university-research projects, processes, licenses, and ideologies that had a variety of names: sourceware, freeware, shareware, open software, public domain software, and so on. The term Open Source, by contrast, sought to encompass them all in one movement. Shea, Tom (23 June 1983). "Free software – Free software is a junkyard of software spare parts". InfoWorld. Retrieved 10 February 2016. "In contrast to commercial software is a large and growing body of free software that exists in the public domain. Public-domain software is written by microcomputer hobbyists (also known as "hackers") many of whom are professional programmers in their work life. [...] Since everybody has access to source code, many routines have not only been used but dramatically improved by other programmers." Raymond, Eric S. (8 February 1998). "Goodbye, "free software"; hello, "open source"". Retrieved 13 August 2008. After the Netscape announcement broke in January I did a lot of thinking about the next phase – the serious push to get "free software" accepted in the mainstream corporate world. And I realized we have a serious problem with "free software" itself. Specifically, we have a problem with the term "free software", itself, not the concept. I've become convinced that the term has to go. Ryan, Patrick S.; Casson, Tony (May 2006). "Open Standards, Open Source Adoption in the Public Sector, and Their Relationship to Microsoft's Market Dominance by Tony Casson, Patrick S. Ryan :: SSRN". Papers.ssrn.com. SSRN 1656616. Holtgrewe, Ursula (2004). "Articulating the Speed(s) of the Internet: The Case of Open Source/Free Software". Time & Society (Submitted manuscript). 13: 129–146. doi:10.1177/0961463X04040750. S2CID 61327593. "Open Source Pioneers Meet in Historic Summit". 14 April 1998. Retrieved 20 September 2014. Muffatto, Moreno (2006). Open Source: A Multidisciplinary Approach. Imperial College Press. ISBN 978-1-86094-665-3. "How I coined the term 'open source'". "NETSCAPE ANNOUNCES PLANS TO MAKE NEXT-GENERATION COMMUNICATOR SOURCE CODE AVAILABLE FREE ON THE NET". Netscape Communications Corporation. 22 January 1998. Archived from the original on 1 April 2007. Retrieved 8 August 2013. BOLD MOVE TO HARNESS CREATIVE POWER OF THOUSANDS OF INTERNET DEVELOPERS; COMPANY MAKES NETSCAPE NAVIGATOR AND COMMUNICATOR 4.0 IMMEDIATELY FREE FOR ALL USERS, SEEDING MARKET FOR ENTERPRISE AND NETCENTER BUSINESSES "MOUNTAIN VIEW, Calif., April 1 /PRNewswire/ -- Netscape Communications and open source developers are celebrating the first anniversary, March 31, 1999, of the release of Netscape's browser source code to mozilla.org". Netscape Communications. 31 March 1999. Retrieved 10 January 2013. [...]The organization that manages open source developers working on the next generation of Netscape's browser and communication software. This event marked a historical milestone for the Internet as Netscape became the first major commercial software company to open its source code, a trend that has since been followed by several other corporations. Since the code was first published on the Internet, thousands of individuals and organizations have downloaded it and made hundreds of contributions to the software. Mozilla.org is now celebrating this one-year anniversary with a party Thursday night in San Francisco. "International Authority & Recognition". Opensource.org. "List of OSI Affiliates". Opensource.org. "OSI Affiliate Agreement". Opensource.org. Perens, Bruce. Open Sources: Voices from the Open Source Revolution. O'Reilly Media. 1999. Dibona, Chris; Ockman, Sam (January 1999). The Open Source Definition by Bruce Perens. ISBN 978-1-56592-582-3. "The Open Source Definition"., The Open Source Definition according to the Open Source Initiative "How Many Open Source Licenses Do You Need? – Slashdot". News.slashdot.org. 16 February 2009. Retrieved 25 March 2012. Open Source Initiative. "The Open Source Definition (Annotated)". opensource.org. Retrieved 22 July 2016. Tiemann, Michael. "History of the OSI". Open Source Initiative. Archived from the original on 24 September 2006. Retrieved 13 May 2014. Stallman, Richard (16 June 2007). "Why "Open Source" misses the point of Free Software". Philosophy of the GNU Project. Free Software Foundation. Retrieved 23 July 2007. As the advocates of open source draw new users into our community, we free software activists have to work even more to bring the issue of freedom to those new users' attention. We have to say, 'It's free software and it gives you freedom!'—more and louder than ever. Every time you say 'free software' rather than 'open source,' you help our campaign. Stallman, Richard (19 June 2007). "Why "Free Software" is better than "Open Source"". Philosophy of the GNU Project. Free Software Foundation. Retrieved 23 July 2007. Sooner or later these users will be invited to switch back to proprietary software for some practical advantage Countless companies seek to offer such temptation, and why would users decline? Only if they have learned to value the freedom free software gives them, for its own sake. It is up to us to spread this idea—and in order to do that, we have to talk about freedom. A certain amount of the 'keep quiet' approach to business can be useful for the community, but we must have plenty of freedom talk too. Stallman, Richard (16 June 2007). "Why "Open Source" misses the point of Free Software". Philosophy of the GNU Project. Free Software Foundation. Retrieved 23 July 2007. Under the pressure of the movie and record companies, software for individuals to use is increasingly designed specifically to restrict them. This malicious feature is known as DRM or Digital Restrictions Management (see DefectiveByDesign.org), and it is the antithesis in spirit of the freedom that free software aims to provide. [...] Yet some open source supporters have proposed 'open source DRM' software. Their idea is that by publishing the source code of programs designed to restrict your access to encrypted media, and allowing others to change it, they will produce more powerful and reliable software for restricting users like you. Then it will be delivered to you in devices that do not allow you to change it. This software might be 'open source,' and use the open source development model; but it won't be free software since it won't respect the freedom of the users that actually run it. If the open source development model succeeds in making this software more powerful and reliable for restricting you, that will make it even worse. Rosen, Lawrence. "Joint Works – Open Source Licensing: Software Freedom and Intellectual Property Law". flylib.com. Retrieved 22 July 2016. Andrew T. Pham, Verint Systems Inc., and Matthew B. Weinstein and Jamie L. Ryerson. "Easy as ABC: Categorizing Open Source Licenses Archived 8 November 2012 at the Wayback Machine"; www.IPO.org. June 2010. Shiels, Maggie (14 August 2008). "Legal milestone for open source". BBC News. Retrieved 15 August 2008. Popp, Dr. Karl Michael (2015). Best Practices for commercial use of open source software. Norderstedt, Germany: Books on Demand. ISBN 978-3738619096. [1] Archived 15 November 2007 at the Wayback Machine [2] Archived 7 December 2007 at the Wayback Machine Raymond, Eric S. (11 September 2000). "The Cathedral and the Bazaar". Retrieved 19 September 2004. Robles, Gregorio (2004). "A Software Engineering Approach to Libre Software" (PDF). In Robert A. Gehring, Bernd Lutterbeck (ed.). Open Source Jahrbuch 2004 (PDF). Berlin: Technical University of Berlin. Retrieved 11 February 2020. Ghosh, R.A.; Robles, G.; Glott, R. (2002). "Free/Libre and Open Source Software: Survey and Study Part V". Maastricht: International Institute of Infonomics. US Department of Defense. "Open Source Software FAQ". Chief Information Officer. Retrieved 22 July 2016. Sharma, Srinarayan; Vijayan Sugumaran; Balaji Rajagopalan (2002). "A framework for creating hybrid-open source software communities" (PDF). Information Systems Journal. 12: 7–25. doi:10.1046/j.1365-2575.2002.00116.x. S2CID 5815589. Landry, John; Rajiv Gupta (September 2000). "Profiting from Open Source". Harvard Business Review. doi:10.1225/F00503. Reynolds, Carl; Jeremy Wyatt (February 2011). "Open Source, Open Standards, and Health Care Information Systems". Journal of Medical Internet Research. 13 (1): e24. doi:10.2196/jmir.1521. PMC 3221346. PMID 21447469. Plotkin, Hal (December 1998). "What (and Why) you should know about open-source software". Harvard Management Update: 8–9. Payne, Christian (February 2002). "On the Security of Open Source Software". Information Systems Journal. 12 (1): 61–78. doi:10.1046/j.1365-2575.2002.00118.x. S2CID 8123076. "GNU Classpath Hacker's Guide: GNU Classpath Hacker's Guide". Gnu.org. 11 August 2003. Retrieved 25 March 2012. Meffert, Klaus; Neil Rotstan (2007). "Brief summary of coding style and practice used in JGAP". Java Genetic Algorithms Package. Archived from the original on 25 December 2012. Retrieved 8 September 2008. Tripp, Andy (16 July 2007). "Classpath hackers frustrated with slow OpenJDK process". Javalobby. Archived from the original on 12 March 2012. Retrieved 2 May 2008. Stamelos, Ioannis; Lefteris Angelis; Apostolos Oikonomou; Georgios L. Bleris (2002). "Code Quality Analysis in Open Source Software Development". Info System Journal. 12: 43–60. doi:10.1109/MS.2007.2. S2CID 18538582. Gallivan, Michael J. (2001). "Striking a Balance Between Trust and Control in a Virtual Organization: A Content Analysis of Open Source Software Case Studies". Information Systems Journal. 11 (4): 277–304. doi:10.1046/j.1365-2575.2001.00108.x. S2CID 11868077. Boldyreff, Cornelia; Lavery, Janet; Nutter, David; Rank, Stephen. "Open Source Development Processes and Tools" (PDF). Flosshub. Retrieved 22 July 2016. Stansberry, Glen (18 September 2008). "7 Version Control Systems Reviewed – Smashing Magazine". Smashing Magazine. Retrieved 22 July 2016. Frantzell, Lennart (18 July 2016). "GitHub, Launchpad and BitBucket, how today's distributed version control systems are fueling the unprecendented global open source revolution". IBM developerworks. Retrieved 22 July 2016. Baker, Jason. "Top 4 open source issue tracking tools". opensource.com. Retrieved 22 July 2016. François Letellier (2008), Open Source Software: the Role of Nonprofits in Federating Business and Innovation Ecosystems, AFME 2008. Open Source Software Institute. "Home". Open Source Software Institute. Retrieved 22 July 2016. Hellekson, Gunnar. "Home". Open Source for America. Archived from the original on 1 December 2015. Retrieved 25 March 2012. from EntandoSrl (Entando ). "Mil-OSS". Retrieved 25 March 2012. Irina Guseva (@irina_guseva) (26 March 2009). "Bad Economy Is Good for Open Source". Cmswire.com. Retrieved 25 March 2012. "Open Source vs. Proprietary Software". PCWorld Business Center. Pcworld.com. 3 November 2011. Retrieved 25 March 2012. Geoff Spick (@Goffee71) (26 October 2009). "Open Source Movement Finds Friends at the White House". Cmswire.com. Retrieved 25 March 2012. "Pandora's box for open source". CNET. 12 February 2004. Retrieved 25 March 2012. Murphy, David (15 August 2010). "Survey: 98 Percent of Companies Use Open-Source, 29 Percent Contribute Back". PCMag.com. Retrieved 25 March 2012. "Homeland Security helps secure open-source code". CNET. Retrieved 25 March 2012. Greenley, Neil. "Open Source Software Survey". Archived from the original on 22 June 2013. Retrieved 9 October 2012. Boulanger, A. (2005). Open-source versus proprietary software: Is one more reliable and secure than the other? IBM Systems Journal, 44(2), 239–248. Seltzer, Larry (4 May 2004). "Is Open-Source Really Safer?". PCMag.com. Retrieved 25 March 2012. Michelle Delio (14 December 2004). "Linux: Fewer Bugs Than Rivals". Wired. Retrieved 23 May 2016. "Why Open Source Misses the Point of Free Software – GNU Project – Free Software Foundation". Gnu.org. Retrieved 30 March 2015. "Goodbye, "free software"; hello, "open source"". The problem with it is twofold. First, ... the term "free" is very ambiguous ... Second, the term makes a lot of corporate types nervous. Kelty, Christpher M. (2008). "The Cultural Significance of free Software – Two Bits" (PDF). Duke University press – Durham and London. p. 99. Prior to 1998, Free Software referred either to the Free Software Foundation (and the watchful, micromanaging eye of Stallman) or to one of thousands of different commercial, avocational, or university-research projects, processes, licenses, and ideologies that had a variety of names: sourceware, freeware, shareware, open software, public domain software, and so on. The term Open Source, by contrast, sought to encompass them all in one movement. OSI. "History of OSI". conferees decided it was time to dump the moralizing and confrontational attitude that had been associated with "free software" in the past and sell the idea strictly on the same pragmatic, business-case grounds Stallman, Richard. "FLOSS and FOSS". Free Software Foundation. Retrieved 22 July 2016. Stallman, Richard (16 June 2007). "Why "Open Source" misses the point of Free Software". Philosophy of the GNU Project. GNU Project. Retrieved 23 July 2007. Tiemann, Michael (19 September 2006). "History of the OSI". Open Source Initiative. Retrieved 23 August 2008. Nelson, Russell (26 March 2007). "Certification Mark". Open Source Initiative. Archived from the original on 6 February 2008. Retrieved 22 July 2007. Raymond, Eric S. (22 November 1998). "OSI Launch Announcement". Open Source Initiative. Retrieved 22 July 2007. Nelson, Russell (19 September 2006). "Open Source Licenses by Category". Open Source Initiative. Retrieved 22 July 2007. "Microsoft announces expansion of Shared Source Initiative". Geekzone.co.nz. 21 March 2005. Retrieved 30 March 2015. "OSI Approves Microsoft License Submissions". opensource.org. 17 October 2007. Retrieved 8 August 2013. Acting on the advice of the License Approval Chair, the OSI Board today approved the Microsoft Public License (Ms-PL) and the Microsoft Reciprocal License (Ms-RL). The decision to approve was informed by the overwhelming (though not unanimous) consensus from the open source community that these licenses satisfied the 10 criteria of the Open Source definition, and should, therefore, be approved. Agerfalk, Par and Fitzgerald, Brian (2008), Outsourcing to an Unknown Workforce: Exploring Opensourcing as a Global Sourcing Strategy, MIS Quarterly, Vol 32, No 2, pp.385–410 Gunter, Joel (10 May 2013). "International Space Station to boldly go with Linux over Windows". The Telegraph. Bridgewater, Adrian (13 May 2013). "International Space Station adopts Debian Linux, drops Windows & Red Hat into airlock". Computer Weekly. Michael J. Gallivan, "Striking a Balance Between Trust and Control in a Virtual Organization: A Content Analysis of Open Source Software Case Studies", Info Systems Journal 11 (2001): 277–304 Hal Plotkin, "What (and Why) you should know about open source software" Harvard Management Update 12 (1998): 8–9 Noyes, Katherine (18 May 2011). "Open Source Software Is Now a Norm in Businesses". PCWorld. Retrieved 22 July 2016. Stallman, Richard (24 September 2007). "Why "Open Source" misses the point of Free Software". Philosophy of the GNU Project. Free Software Foundation. Retrieved 6 December 2007. However, not all of the users and developers of free software agreed with the goals of the free software movement. In 1998, a part of the free software community splintered off and began campaigning in the name of 'open source.' The term was originally proposed to avoid a possible misunderstanding of the term 'free software,' but it soon became associated with philosophical views quite different from those of the free software movement. "What is open source?". Retrieved 29 July 2013. "Open Source Ecology". ...building the world's first replicable open source self-sufficient decentralized high-appropriate-tech permaculture ecovillage... "Open Collaboration Bitcoin". Informs.org. 2 January 2014. Retrieved 30 March 2015. Raymond, Eric S. The Cathedral and the Bazaar. ed 3.0. 2000. Further reading Androutsellis-Theotokis, Stephanos; Spinellis, Diomidis; Kechagia, Maria; Gousios, Georgios (2010). Open source software: A survey from 10,000 feet (PDF). Foundations and Trends in Technology, Information and Operations Management. 4. pp. 187–347. doi:10.1561/0200000026. ISBN 978-1-60198-484-5. Coleman, E. Gabriella. Coding Freedom: The Ethics and Aesthetics of Hacking (Princeton UP, 2012) Fadi P. Deek; James A. M. McHugh (2008). Open Source: Technology and Policy. Cambridge: Cambridge University Press. ISBN 978-0-511-36775-5. Chris DiBona and Sam Ockman and Mark Stone, ed. (1999). Open Sources: Voices from the Open Source Revolution. O'Reilly. ISBN 978-1-56592-582-3. Joshua Gay, ed. (2002). Free Software, Free Society: Selected Essays of Richard M. Stallman. Boston: GNU Press, Free Software Foundation. ISBN 978-1-882114-98-6. Understanding FOSS | editor = Sampathkumar Coimbatore India Benkler, Yochai (2002), "Coase's Penguin, or, Linux and The Nature of the Firm." Yale Law Journal 112.3 (Dec 2002): p367(78) (in Adobe pdf format) v. Engelhardt, Sebastian (2008). "The Economic Properties of Software", Jena Economic Research Papers, Volume 2 (2008), Number 2008-045 (PDF). Lerner, J. & Tirole, J. (2002): 'Some simple economics on open source', Journal of Industrial Economics 50(2), p 197–234 Välimäki, Mikko (2005). The Rise of Open Source Licensing: A Challenge to the Use of Intellectual Property in the Software Industry (PDF). Turre Publishing. Archived from the original (PDF) on 4 March 2009. Polley, Barry (11 December 2007). "Open Source Discussion Paper – version 1.0" (PDF). New Zealand Ministry of Justice. Archived from the original (PDF) on 23 February 2018. Retrieved 12 December 2007. Rossi, M. A. (2006): Decoding the free/open-source software puzzle: A survey of theoretical and empirical contributions, in J. Bitzer P. Schröder, eds, 'The Economics of Open Source Software Development', p 15–55. Open Sources: Voices from the Open Source Revolution — an online book containing essays from prominent members of the open-source community Berry, D M (2004). The Contestation of Code: A Preliminary Investigation into the Discourse of the Free Software and Open Software Movement, Critical Discourse Studies, Volume 1(1). Schrape, Jan-Felix (2017). "Open Source Projects as Incubators of Innovation. From Niche Phenomenon to Integral Part of the Software Industry" (PDF). Stuttgart: Research Contributions to Organizational Sociology and Innovation Studies 2017-03. Sustainable Open Source, a Confluence article providing guidelines for fair participation in the open source ecosystem, by Radovan Semancik External links Wikimedia Commons has media related to Free software. Wikibooks has a book on the topic of: Open Source Wikibooks has a book on the topic of: Use the Source Scholia has a topic profile for Open-source software. 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List of free and open-source software packages From Wikipedia, the free encyclopedia Jump to navigationJump to search This article is about software free to be modified and distributed. For examples of software free in the monetary sense, see List of freeware.

This article may contain misleading parts. Please help clarify this article according to any suggestions provided on the talk page. (October 2021) This is a list of free and open-source software packages, computer software licensed under free software licenses and open-source licenses. Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source.[1] For more information about the philosophical background for open-source software, see free software movement and Open Source Initiative. However, nearly all software meeting the Free Software Definition also meets the Open Source Definition and vice versa. A small fraction of the software that meets either definition is listed here. Some of the open-source applications are also the basis of commercial products, shown in the List of commercial open-source applications and services.

Contents 1	Artificial intelligence 1.1	General AI 1.2	Computer Vision 1.3	Machine Learning 1.4	Planning 1.5	Robotics 2	Assistive technology 2.1	Speech (synthesis and recognition) 2.2	Other assistive technology 3	CAD 3.1	Electronic design automation (EDA) 4	Computer simulation 5	Cybersecurity 5.1	Antivirus 5.2	Data loss prevention 5.3	Data recovery 5.3.1	Forensics 5.3.1.1	Anti-forensics 5.4	Disk erasing 5.5	Encryption 5.5.1	Disk encryption 5.6	Firewall 5.7	Network and security monitoring 5.8	Secure Shell (SSH) 5.9	Password management 5.10	Other cybersecurity programs 6	Data storage and management 6.1	Backup software 6.2	Database management systems (including administration) 6.3	Data mining 6.4	Data Visualization Components 6.5	Digital Asset Management software system 6.6	Disk partitioning software 6.7	Enterprise search engines 6.8	ETLs (Extract Transform Load) 6.9	File archivers 6.10	File systems 7	Desktop publishing 8	E-book management and editing 9	Educational 9.1	Educational suites 9.2	Geography 9.3	Learning support 9.4	Language 9.5	Typing 10	File managers 11	Finance 11.1	Accounting 11.2	Cryptocurrency 11.3	CRM 11.4	ERP 11.5	Human resources 11.6	Microfinance 11.7	Process management 11.8	Trading 12	Games 12.1	Action 12.2	Application layer 12.3	Emulation 12.4	Puzzle 12.5	Sandbox 12.6	Simulation 12.7	Strategy 13	Genealogy 14	Geographic information systems 15	Graphical user interface 15.1	Desktop environments 15.2	Window managers 15.3	Windowing system 16	Groupware 16.1	Content management systems 16.2	Wiki software 17	Healthcare software 18	Integrated library management software 19	Image editor 20	Mathematics 20.1	Statistics 20.2	Numerical Analysis 20.3	Geometry 20.4	Spreadsheet 21	Media 21.1	Audio editors, audio management 21.2	CD/USB-writing software 21.3	Flash animation 21.4	Game Engines 21.5	Graphics 21.5.1	2D 21.5.2	3D 21.6	Image galleries 21.7	Image viewers 21.8	Multimedia codecs, containers, splitters 21.9	Television 21.10	Video converters 21.11	Video editing 21.12	Video encoders 21.13	Video players 21.14	Other media packages 22	Networking and Internet 22.1	Advertising 22.2	Communication-related 22.3	E-mail 22.4	File transfer 22.5	Grid and distributed processing 22.6	Instant messaging 22.7	IRC Clients 22.8	Middleware 22.9	RSS/Atom readers/aggregators 22.10	Peer-to-peer file sharing 22.11	Portal Server 22.12	Remote access and management 22.13	Routing software 22.14	Web browsers 22.15	Webcam 22.16	Webgrabber 22.17	Web-related 22.18	Web search engines 22.19	Other networking programs 23	Office suites 24	Operating systems 24.1	Emulation and Virtualisation 25	Personal information managers 26	Programming language support 26.1	Bug trackers 26.2	Code generators 26.3	Documentation generators 26.4	Configuration software 26.5	Debuggers (for testing and trouble-shooting) 26.6	Integrated development environments 26.7	Version control systems 27	Reference management software 28	Risk Management 29	Science 29.1	Bioinformatics 29.2	Cheminformatics 29.3	Electronic Lab Notebooks 29.4	Geographic Information Systems 29.5	Geoscience 29.6	Grid computing 29.7	Microscope image processing 29.8	Molecular dynamics 29.9	Molecule viewer 29.10	Nanotechnology 29.11	Plotting 29.12	Quantum chemistry 30	Screensavers 31	Statistics 32	Theology 32.1	Bible study tools 33	Typesetting 34	See also 34.1	General directories 35	References 36	External links 37	See also Artificial intelligence General AI OpenCog – A project that aims to build an artificial general intelligence (AGI) framework. OpenCog Prime is a specific set of interacting components designed to give rise to human-equivalent artificial general intelligence. Computer Vision AForge.NET – computer vision, artificial intelligence and robotics library for the .NET Framework OpenCV – computer vision library in C++ Machine Learning See List of open-source machine learning software See Data Mining below See R programming language – packages of statistical learning and analysis tools Planning TREX – Reactive planning Robotics ROS – Robot Operating System Webots – Robot Simulator YARP – Yet Another Robot Platform Assistive technology Speech (synthesis and recognition) CMU Sphinx – Speech recognition software from Carnegie Mellon University Emacspeak – Audio desktop ESpeak – Compact software speech synthesizer for English and other languages Festival Speech Synthesis System – General multilingual speech synthesis Modular Audio Recognition Framework – Voice, audio, speech NLP processing NonVisual Desktop Access – (NVDA) Screen reader, for Windows Text2Speech – Lightweight, easy-to-use Text-To-Speech (TTS) Software Other assistive technology Dasher – Unique text input software Gnopernicus – AT suite for GNOME 2 Virtual Magnifying Glass – A multi-platform screen magnification tool CAD Main category: Free computer-aided design software FreeCAD – Parametric 3D CAD modeler with a focus on mechanical engineering, BIM, and product design LibreCAD – 2D CAD software using AutoCAD-like interface and file format Electronic design automation (EDA) Main category: Free electronic design automation software Fritzing KiCad Computer simulation Main article: List of free and open-source computer simulation software Blender – 3D computer graphics software toolset used for creating animated films, visual effects, art, 3D printed models, and motion graphics. FlightGear - atmospheric and orbital flight simulator with a flight dynamics engine (JSBSim) that is used in a 2015 NASA benchmark[2] to judge new simulation code to space industry standards. SimPy – Queue-theoretic event-based simulator written in Python Cybersecurity Main article: Cybersecurity Antivirus See also: Antivirus software ClamAV ClamWin Gateway Anti-Virus Lynis Data loss prevention See also: Data loss prevention software MyDLP Data recovery See also: Data recovery and List of data recovery software dvdisaster Foremost PhotoRec TestDisk Forensics See also: Forensic science The Coroner's Toolkit The Sleuth Kit Anti-forensics See also: Anti-forensics USBKill Disk erasing See also: Disk Cleanup DBAN srm Encryption See also: Encryption, Encryption software, and List of encrypting file systems AES Bouncy Castle GnuPG GnuTLS KGPG NaCl OpenSSL Seahorse Signal stunnel TextSecure wolfCrypt Disk encryption See also: Disk encryption and Disk encryption software dm-crypt CrossCrypt FreeOTFE and FreeOTFE Explorer eCryptfs Firewall See also: Firewall (computing) and Firewall software Uncomplicated Firewall (ufw) Firestarter IPFilter ipfw iptables M0n0wall PeerGuardian PF pfSense Rope Shorewall SmoothWall Vyatta Network and security monitoring Main category: Free network management software Snort – Network intrusion detection system (IDS) and intrusion prevention system (IPS) OpenVAS – software framework of several services and tools offering vulnerability scanning and vulnerability management Secure Shell (SSH) See also: Secure Shell Cyberduck – macOS and Windows client (since version 4.0) Lsh – Server and client, with support for SRP and Kerberos authentication OpenSSH – Client and server PuTTY – Client-only Password management Bitwarden KeePass KeePassXC (multiplatform fork able to open KeePass databases) Password Safe Mitro Pass Other cybersecurity programs Main category: Free security software Data storage and management Backup software Main category: Free backup software Database management systems (including administration) Main category: Free database management systems Data mining Environment for DeveLoping KDD-Applications Supported by Index-Structures (ELKI) – Data mining software framework written in Java with a focus on clustering and outlier detection methods FrontlineSMS – Information distribution and collecting via text messaging (SMS) Konstanz Information Miner (KNIME) OpenNN – Open-source neural networks software library written in C++ Orange (software) – Data visualization and data mining for novice and experts, through visual programming or Python scripting. Extensions for bioinformatics and text mining RapidMiner – Data mining software written in Java, fully integrating Weka, featuring 350+ operators for preprocessing, machine learning, visualization, etc. – the previous version is available as open-source Scriptella ETL – ETL (Extract-Transform-Load) and script execution tool. Supports integration with J2EE and Spring. Provides connectors to CSV, LDAP, XML, JDBC/ODBC, and other data sources Weka – Data mining software written in Java featuring machine learning operators for classification, regression, and clustering JasperSoft – Data mining with programmable abstraction layer Data Visualization Components ParaView – Plotting and visualization functions developed by Sandia National Laboratory; capable of massively parallel flow visualization utilizing multiple computer processors VTK – Toolkit for 3D computer graphics, image processing, and visualisation. Digital Asset Management software system Disk partitioning software Main category: Free partitioning software Enterprise search engines ApexKB, formerly known as Jumper Lucene Nutch Solr Xapian ETLs (Extract Transform Load) Konstanz Information Miner (KNIME) Pentaho File archivers Main category: Free data compression software File systems OpenAFS – Distributed file system supporting a very wide variety of operating systems Tahoe-LAFS – Distributed file system/Cloud storage system with integrated privacy and security features CephFS – Distributed file system included in the Ceph storage platform. Desktop publishing Collabora Online Draw and Writer - Enterprise-ready edition of LibreOffice accessible from a web browser. The Draw application is for flyers, newsletters, brochures and more, Writer has most of the functionality too.[3] Scribus – Designed for layout, typesetting, and preparation of files for professional-quality image-setting equipment. It can also create animated and interactive PDF presentations and forms. E-book management and editing Calibre – Cross-platform suite of e-book software Collabora Online Writer - Enterprise-ready edition of LibreOffice accessible from a web browser. Allows exporting in the EPUB format.[4] Sigil – Editing software for e-books in the EPUB format Educational Educational suites ATutor – Web-based Learning Content Management System (LCMS) Chamilo – Web-based e-learning and content management system Claroline – Collaborative Learning Management System DoceboLMS – SAAS/cloud platform for learning eFront – Icon-based learning management system FlightPath – Academic advising software for universities GCompris – Educational entertainment, aimed at children aged 2–10 Gnaural – Brainwave entrainment software H5P – Framework for creating and sharing interactive HTML5 content IUP Portfolio – Educational platform for Swedish schools ILIAS – Web-based learning management system (LMS) Moodle – Free and open-source learning management system OLAT – Web-based Learning Content Management System Omeka – Content management system for online digital collections openSIS – Web-based Student Information and School Management system Sakai Project – Web-based learning management system SWAD – Web-based learning management system Tux Paint – Painting application for 3–12 year olds UberStudent – Linux based operating system and software suite for academic studies Geography KGeography – Educational game teaching geography Learning support Main category: Free learning support software Language Kiten Typing KTouch – Touch typing lessons with a variety of keyboard layouts Tux Typing – Typing tutor for children, featuring two games to improve typing speed File managers Main category: Free file managers Finance Accounting See also: Comparison of accounting software GnuCash – Double-entry book-keeping HomeBank – Personal accounting software KMyMoney – Double-entry book-keeping LedgerSMB – Double-entry book-keeping RCA open-source application – management accounting application SQL Ledger – Double-entry book-keeping TurboCASH – Double-entry book-keeping for Windows Wave Accounting – Double-entry book-keeping Cryptocurrency See also: Cryptocurrency Bitcoin – Blockchain platform, peer-to-peer decentralised digital currency Ethereum – Blockchain platform with smart contract functionality CRM See also: Customer relationship management CiviCRM – Constituent Relationship Management software aimed at NGOs iDempiere – Business Suite, ERP and CRM SuiteCRM – Web-based CRM ERP See also: Enterprise resource planning Adempiere – Enterprise resource planning (ERP) business suite Compiere – ERP solution automates accounting, supply chain, inventory, and sales orders Dolibarr – Web-based ERP system ERPNext – Web-based open-source ERP system for managing accounting and finance Ino erp – Dynamic pull based system ERP JFire – An ERP business suite written with Java and JDO metasfresh – ERP Software Odoo – Open-source ERP, CRM and CMS Openbravo – Web-based ERP Tryton – Open-source ERP Human resources OrangeHRM – Commercial human resource management Microfinance Cyclos – Software for microfinance institutions, complementary currency systems and timebanks Mifos – Microfinance Institution management software Process management Bonita Open Solution – Business Process Management Trading jFin – Java-based trade-processing program QuickFIX – FIX protocol engine written in C++ with additional C#, Ruby, and Python wrappers QuickFIX/J – FIX protocol engine written in Java Games Main article: List of open-source video games Action Xonotic – First-person shooter that runs on a heavily modified version of the Quake engine known as the DarkPlaces engine Warsow – First-person shooter fast-paced arena FPS game that runs on the Qfusion engine Application layer WINE – Allows Windows applications to be run on Unix-like operating systems Emulation MAME – Multi-platform emulator designed to recreate the hardware of arcade game systems RetroArch – Cross-platform front-end for emulators, game engines and video games Puzzle Pingus – Lemmings clone with penguins instead of lemmings Sandbox Minetest – An open source voxel game engine. Simulation OpenTTD – Business simulation game in which players try to earn money via transporting passengers and freight by road, rail, water and air. SuperTuxKart – Kart racing game that features mascots of various open-source projects. Strategy 0 A.D. – Real-time strategy video game Freeciv – Turn-based strategy game inspired by the proprietary Sid Meier's Civilization series. The Battle for Wesnoth – Turn-based strategy video game with a fantasy setting Genealogy Main category: Free genealogy software Gramps (software) – a free and open source genealogy software. Geographic information systems QGIS – cross-platform desktop geographic information system (GIS) application that supports viewing, editing, and analysis of geospatial data. Graphical user interface Desktop environments Main category: Free desktop environments Window managers Main category: Free X window managers Windowing system Main category: Free windowing systems Groupware Main category: Free groupware Content management systems Main category: Free content management systems Wiki software Main category: Free wiki software Healthcare software Main articles: List of open-source health software and List of open-source bioinformatics software Integrated library management software Evergreen – Integrated Library System initially developed for the Georgia Public Library Service's PINES catalog Koha – SQL-based library management NewGenLib OpenBiblio PMB refbase – Web-based institutional repository and reference management software Image editor Darktable – Digital image workflow management, including RAW photo processing digiKam – Integrated photography toolkit including editing capabilities GIMP – Raster graphics editor aimed at image retouching/editing Inkscape – Vector graphics editor Karbon – Scalable vector drawing application in KDE Krita – Digital painting, sketching and 2D animation application, with a variety of brush engines LazPaint – Lightweight raster and vector graphics editor, aimed at being simpler to use than GIMP LightZone – Free, open-source digital photo editor software application. RawTherapee – Digital image workflow management aimed at RAW photo processing Mathematics For a more comprehensive list, see List of open-source software for mathematics. Statistics R Statistics Software Numerical Analysis Octave - Numerical Analysis Software Geometry Geogebra - Geometry and Algebra Spreadsheet LibreOffice Calc algebraic operations on table cells - descriptive data analysis Media Audio editors, audio management Main article: Comparison of free software for audio CD/USB-writing software Main category: Free optical disc authoring software Flash animation Pencil2D – For animations SWFTools – For scripting Game Engines Main category: List of game engines Godot – Application for the design of cross-platform video games Stockfish – Universal Chess Interface chess engine Leela Chess Zero – Universal Chess Interface chess engine Armory – 3D engine focused on portability, minimal footprint and performance. Armory provides a full Blender integration add-on, turning it into a complete game development tool. Stride – (prev. Xenko) 2D and 3D cross-platform game engine originally developed by Silicon Studio. Graphics Main category: Free graphics software 2D Pencil2D – Simple 2D graphics and animation program Synfig – 2D vector graphics and timeline based animation TupiTube (formerly KTooN) – Application for the design and creation of animation OpenToonz – Part of a family of 2D animation software Krita – Digital painting, sketching and 2D animation application, with a variety of brush engines Blender – Computer graphics software, Blender's Grease Pencil tools allow for 2D animation within a full 3D pipeline. mtPaint – raster graphics editor for creating icons, pixel art 3D Blender – Computer graphics software featuring modeling, sculpting, texturing, rigging, simulation, rendering, camera tracking, video editing, and compositing OpenFX – Modeling and animation software with a variety of built-in post processing effects Seamless3d – Node-driven 3D modeling software Wings 3D – subdivision modeler inspired by Nendo and Mirai from Izware. Image galleries Main category: Free image galleries Image viewers Eye of GNOME F-spot feh Geeqie Gthumb Gwenview KPhotoAlbum Opticks Multimedia codecs, containers, splitters Main category: Free multimedia codecs, containers, and splitters Television Main article: List of free television software Main category: Free television software See also: Comparison of PVR software packages Video converters Main category: Free video conversion software Dr. DivX FFmpeg MEncoder OggConvert Video editing See also: List of video editing software § Free_and_open-source Avidemux AviSynth Blender Cinelerra DVD Flick Flowblade Kdenlive Kino LiVES LosslessCut Natron Olive OpenShot Pitivi Shotcut VirtualDub VirtualDubMod VideoLAN Movie Creator Video encoders Main article: Comparison of video encoders Avidemux HandBrake FFmpeg Video players Main article: Comparison of video player software Media Player Classic VLC media player mpv Other media packages Celtx – Media pre-production software Open Broadcaster Software (OBS) – Cross-platform streaming and recording program Networking and Internet Advertising Revive Adserver Communication-related Asterisk – Telephony and VoIP server Ekiga – Video conferencing application for GNOME and Microsoft Windows ConferenceXP – video conferencing application for Windows XP or later FreePBX – Front-end and advanced PBX configuration for Asterisk FreeSWITCH – Telephony platform Jami – Cross-platform, peer to peer instant-messaging and video-calling protocol that offers end-to-end encryption and SIP client Jitsi – Java VoIP and Instant Messaging client QuteCom – Voice, video, and IM client application Enterprise Communications System sipXecs – SIP Communications Server Slrn – Newsreader Twinkle – VoIP softphone Tox – Cross-platform, peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption E-mail Main category: Free email software Geary – Email client based on WebKitGTK+ Mozilla Thunderbird – Email, news, RSS, and chat client File transfer Main category: Free file transfer software Grid and distributed processing GNU Queue HTCondor OpenLava pexec Instant messaging Main category: Free instant messaging clients IRC Clients Main category: Free Internet Relay Chat clients Middleware Apache Axis2 – Web service framework (implementations are available in both Java & C) Apache Geronimo – Application server Bonita Open Solution – a J2EE web application and java BPMN2 compliant engine GlassFish – Application server Jakarta Tomcat – Servlet container and standalone webserver JBoss Application Server – Application server ObjectWeb JOnAS – Java Open Application Server, a J2EE application server OpenRemote – IoT Middleware TAO (software) – C++ implementation of the OMG's CORBA standard Enduro/X – C/C++ middleware platform based on X/Open group's XATMI and XA standards RSS/Atom readers/aggregators Akregator – Platforms running KDE Liferea – Platforms running GNOME NetNewsWire – macOS, iOS RSS Bandit – Windows, using .NET Framework RSSOwl – Windows, Mac OS X, Solaris, Linux using Java SWT Eclipse Sage (Mozilla Firefox extension) Peer-to-peer file sharing Main category: Free file sharing software See also: Category:Free BitTorrent clients Popcorn Time – Multi-platform, free, and open-source media player qBittorrent – Alternative to popular clients such as μTorrent Transmission – BitTorrent client Portal Server Drupal Liferay Sun Java System Portal Server uPortal Remote access and management FreeNX OpenVPN rdesktop Synergy VNC (RealVNC, TightVNC, UltraVNC) Remmina (based on FreeRDP) Routing software Main category: Free routing software Web browsers Main category: Free web browsers Brave – web browser based on the Blink engine Chromium – Minimalist web browser from which Google Chrome draws its source code Falkon – web browser based on the Blink engine Firefox – Mozilla-developed web browser using the Gecko layout engine GNOME Web - web browser using the WebKit layout engine Midori – Lightweight web browser using the WebKit layout engine qutebrowser - web brower based on the WebKit layout engine Tor Browser – Modified Mozilla Firefox ESR web browser Waterfox – Alternative to Firefox (64-bit only) SeaMonkey – Internet suite Webcam Cheese – GNOME webcam application Guvcview – Linux webcam application Webgrabber cURL HTTrack Wget Web-related Apache Cocoon – A web application framework Apache – The most popular web server AWStats – Log file parser and analyzer BookmarkSync – Tool for browsers Cherokee – Fast, feature-rich HTTP server curl-loader – Powerful HTTP/HTTPS/FTP/FTPS loading and testing tool FileZilla – FTP Hiawatha – Secure, high performance, and easy-to-configure HTTP server HTTP File Server – User-friendly file server software, with a drag-and-drop interface lighttpd – Resource-sparing, but also fast and full-featured, HTTP Server Lucee – CFML application server Nginx – Lightweight, high performance web server/reverse proxy and e-mail (IMAP/POP3) proxy NetKernel – Internet application server Qcodo – PHP5 framework Squid – Web proxy cache Vaadin – Fast, Java-based framework for creating web applications Varnish – High-performance web application accelerator/reverse proxy and load balancer/HTTP router XAMPP – Package of web applications including Apache and MariaDB Zope – Web application server Web search engines Searx – Self-hostable metasearch engine YaCy – P2P-based search engine Other networking programs JXplorer – LDAP client Nextcloud – A fork of ownCloud OpenLDAP – LDAP server ownCloud – File share and sync server Wireshark – Network monitor Office suites Apache OpenOffice (formerly known as OpenOffice.org) Calligra Suite – The continuation of KOffice under a new name Collabora Online - Enterprise-ready edition of LibreOffice, web application, mobile phone, tablet, Chromebook and desktop (Windows, macOS, Linux)[5] LibreOffice – Independent Work of OpenOffice.org with a number of enhancements ONLYOFFICE Desktop Editors – An open-source offline edition of the Cloud Operating systems Be advised that available distributions of these systems can contain, or offer to build and install, added software that is neither free software nor open-source.

Main category: Free software operating systems Emulation and Virtualisation Main category: Free emulation software Main category: Free virtualization software DOSBox – DOS programs emulator (including PC games) VirtualBox – hosted hypervisor for x86 virtualization Personal information managers Chandler – Developed by the OSAF KAddressBook Kontact KOrganizer Mozilla Calendar – Mozilla-based, multi-platform calendar program Novell Evolution Perkeep – Personal data store for pictures Project.net – Commercial Project Management TeamLab – Platform for project management and collaboration Programming language support Main article: List of open-source programming languages Bug trackers Bugzilla Mantis Mindquarry Redmine Trac Code generators Bison CodeSynthesis XSD – XML Data Binding compiler for C++ CodeSynthesis XSD/e – Validating XML parser/serializer and C++ XML Data Binding generator for mobile and embedded systems Flex lexical analyser – Generates lexical analyzers Kodos Open Scene Graph – 3D graphics application programming interface OpenSCDP – Open Smart Card Development Platform phpCodeGenie SableCC – Parser generator for Java and .NET SWIG – Simplified Wrapper and Interface Generator for several languages ^txt2regex$ xmlbeansxx – XML Data Binding code generator for C++ YAKINDU Statechart Tools – Statechart code generator for C++ and Java Documentation generators Doxygen – Tool for writing software reference documentation. The documentation is written within code. Mkd – The software documentation is extracted from the sources files, from pseudocode or comments. Natural Docs – Claims to use a more natural language as input from the comments, hence its name. Configuration software Autoconf Automake BuildAMation CMake Debuggers (for testing and trouble-shooting) GNU Debugger – A portable debugger that runs on many Unix-like systems Memtest86 – Stress-tests RAM on x86 machines Xnee – Record and replay tests Integrated development environments Main category: Free integrated development environments Version control systems Main category: Free version control software Reference management software See also: Comparison of reference management software Risk Management Active Agenda – Operational risk management and Rapid application development platform Science Main category: Free science software Bioinformatics See also: List of open source bioinformatics software Cheminformatics Chemistry Development Kit JOELib OpenBabel Electronic Lab Notebooks ELOG Jupyter Geographic Information Systems Main category: Free GIS software Geoscience See also: List of free geology software and Comparison of free geophysics software Grid computing P-GRADE Portal – Grid portal software enabling the creation, execution and monitoring of workflows through high-level Web interfaces Microscope image processing CellProfiler – Automatic microscopic analysis, aimed at individuals lacking training in computer vision Endrov – Java-based plugin architecture designed to analyse complex spatio-temporal image data Fiji – ImageJ-based image processing Ilastik – Image-classification and segmentation software ImageJ – Image processing application developed at the National Institutes of Health IMOD – 2D and 3D analysis of electron microscopy data ITK – Development framework used for creation of image segmentation and registration programs KNIME – Data analytics, reporting, and integration platform VTK – C++ toolkit for 3D computer graphics, image processing, and visualisation 3DSlicer – Medical image analysis and visualisation Molecular dynamics GROMACS – Protein, lipid, and nucleic acid simulation LAMMPS – Molecular dynamics software MDynaMix – General-purpose molecular dynamics, simulating mixtures of molecules ms2 - molecular dynamics and Monte Carlo simulation package for the prediction of thermophysical properties of fluids NWChem – Quantum chemical and molecular dynamics software Molecule viewer Avogadro – Plugin-extensible molecule visualisation BALLView – Molecular modeling and visualisation Jmol – 3D representation of molecules in a variety of formats, for use as a teaching tool Molekel – Molecule viewing software MeshLab – Able to import PDB dataset and build up surfaces from them PyMOL – High-quality representations of small molecules as well as biological macromolecules QuteMol – Interactive molecule representations offering an array of innovative OpenGL visual effects RasMol – Visualisation of biological macromolecules Nanotechnology Ninithi – Visualise and analyse carbon allotropes, such as Carbon nanotube, Fullerene, Graphene nanoribbons Plotting Main category: Free plotting software Veusz Quantum chemistry See also: List of quantum chemistry and solid-state physics software CP2K – Atomistic and molecular simulation of solid-state, liquid, molecular, and biological systems Screensavers BOINC Electric Sheep XScreenSaver Statistics Main category: Free statistical software R Statistics Software LimeSurvey – Online survey system Theology Bible study tools Go Bible – A free Bible viewer application for Java mobile phones Marcion – Coptic–English/Czech dictionary OpenLP – A worship presentation program licensed under the GNU General Public License The SWORD Project – The CrossWire Bible Society's free software project Typesetting Main category: Free typesetting software See also Free and open-source software portal Comparison of file synchronization software § Open-source List of HDL simulators § Free and open-source simulators List of optimization software § Free and open-source software List of concept- and mind-mapping software § Free and open-source List of spreadsheet software § Free and open-source software Comparison of FTP client software § Free and open-source software GNOME Core Applications List of GNU packages List of KDE applications List of formerly proprietary software List of Unix commands General directories AlternativeTo CodePlex Free Software Directory Freecode Open Hub SourceForge References Richard Stallman (July 13, 2011). "Why Open Source misses the point of Free Software". Retrieved August 24, 2011. "Further Development of Verification Check-casesforSix-Degree-of-Freedom Flight Vehicle Simulations" (PDF). NASA Engineering and Safety Center Academy. 2015. Archived (PDF) from the original on March 10, 2021. "Create great flyers, newsletters, brochures and more with open source software". opensource.com. Bärwaldt, Eric (2020). "Collaborative online office solutions". Admin Network & Security. 60/2020. ...users can also convert text files to the ePub format for displaying appear on ebook readers or with desktop software for reading ePub files. Bärwaldt, Eric (2020-09-01). "Working Together Tools for collaborative office work". Linux Magazine (238/2020). For cross-platform use, the suite not only supports the Open Document Format (ODF) but also all newer Microsoft formats, which makes interaction with other office suites easier. External links Open Source Software Directory (OSSD), a collection of FOSS organized by target audience. Open Source Living, a community-driven archive of open-source software (OSS). OpenDisc, a pre-assembled ISO image of open-source software for Microsoft Windows List of open-source programs (LOOP) for Windows, maintained by the Ubuntu Documentation Project. The OSSwin Project, a list of free and open-source software for Windows See also Open-source software Open source license vte Free and open-source software General Alternative terms for free softwareComparison of open-source and closed-source softwareComparison of source-code-hosting facilitiesFree softwareFree software project directoriesGratis versus libreLong-term supportOpen-source softwareOpen-source software developmentOutlineTimeline Software packages AudioBioinformaticsCodecsConfiguration managementDrivers GraphicsWirelessGeophysicsHealthMathematicsOffice SuitesOperating systemsProgramming languagesRoutingTelevisionVideo gamesWeb applications E-commerceAndroid appsiOS appsCommercialTrademarkedFormerly proprietaryFormerly open-source Community Free software movementHistoryOpen-source-software movementEvents Organisations Free Software Movement of IndiaFree Software Foundation Licenses AFLApacheAPSLArtisticBeerwareBSDCreative CommonsCDDLEPLFree Software Foundation GNU GPLGNU LGPLISCMITMPLPythonPython Software Foundation LicenseShared Source InitiativeSleepycatUnlicenseWTFPLzlib Types and standards Comparison of licensesContributor License AgreementCopyleftDebian Free Software GuidelinesDefinition of Free Cultural WorksFree licenseThe Free Software DefinitionThe Open Source DefinitionOpen-source licensePermissive software licensePublic domainViral license Challenges Digital rights managementHardware restrictionsLicense proliferationMozilla software rebrandingProprietary device driversProprietary firmwareProprietary softwareSCO/Linux controversiesSoftware patentsSoftware securityTrusted Computing Related topics ForkingGNU ManifestoMicrosoft Open Specification PromiseOpen-core modelOpen-source hardwareShared Source InitiativeSource-available softwareThe Cathedral and the BazaarRevolution OS Portal PortalCategory Category Categories: Free software lists and comparisonsLists of softwareSoftware licenses Navigation menu Sam Franco Tsar Alerts (0) Notice (1) Talk Sandbox Preferences Beta Watchlist Contributions Log out ArticleTalk ReadEdit sourceView historyWatch Search Search Wikipedia Main page Contents Current events Random article About Wikipedia Contact us Donate Contribute Help Learn to edit Community portal Recent changes Upload file Tools What links here Related changes Special pages Permanent link Page information Cite this page Wikidata item Print/export Download as PDF Printable version

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Your submission at Articles for creation: sandbox (December 20)
 Your recent article submission to Articles for Creation has been reviewed! Unfortunately, it has not been accepted at this time. The reason left by Theroadislong was:

Please check the submission for any additional comments left by the reviewer. You are encouraged to edit the submission to address the issues raised and resubmit when they have been resolved.


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Theroadislong (talk) 16:55, 20 December 2021 (UTC)

Concern regarding User:Sam Franco Tsar/sandbox
Hello, Sam Franco Tsar. This is a bot-delivered message letting you know that User:Sam Franco Tsar/sandbox, a page you created, has not been edited in at least 5 months. Drafts that have not been edited for six months may be deleted, so if you wish to retain the page, please edit it again&#32;or request that it be moved to your userspace.

If the page has already been deleted, you can request it be undeleted so you can continue working on it.

Thank you for your submission to Wikipedia. FireflyBot (talk) 17:02, 22 May 2022 (UTC)

Your draft article, User:Sam Franco Tsar/sandbox


Hello, Sam Franco Tsar. It has been over six months since you last edited the Articles for Creation submission or Draft page you started, "sandbox".

In accordance with our policy that Wikipedia is not for the indefinite hosting of material deemed unsuitable for the encyclopedia mainspace, the draft has been deleted. If you plan on working on it further and you wish to retrieve it, you can request its undeletion. An administrator will, in most cases, restore the submission so you can continue to work on it.

Thanks for your submission to Wikipedia, and happy editing. Liz Read! Talk! 19:23, 20 June 2022 (UTC)