GNOME LaTeX

GNOME LaTeX (up to version 3.26 known as LaTeXila) is a TeX/LaTeX editor to edit TeX/LaTeX documents. It runs on Linux systems with the GTK library installed.

Features
GNOME LaTeX has many useful features needed to edit TeX/LaTeX source code, such as:
 * Customizable one-click buttons to build, view and convert documents
 * Auto-completion of (La)TeX commands
 * Graphical lists of symbols for easy insertion
 * Templates for new document creation
 * Project management
 * Summary of the document structure
 * Spell checking based on gspell
 * Forward and backward search to switch between the sources and the PDF

However, it lacks some features available in other editors:
 * Split screen (available in TeXShop, Vim-LaTeX (LaTeX-suite), TeXmacs...)
 * Compare (available in WinEdt, Vim-LaTeX (LaTeX-suite), TeXmacs...).