User:Lexein/wordfreq

User:Lexein/wordfreq.js is a bookmarklet to generate a word frequency table for any currently displayed webpage. It must be bookmarked, in your browser, to be used.

To install it, create a new bookmark in your browser's bookmark bar. Copy/paste the code above the ====== line into the Address or Location field, and give the bookmark a name like "WordFreq".

To use it, just go to any web page of interest, click the bookmarklet. The sorted list of words, in descending order of frequency will appear almost instantly, and can be copy/pasted as normal text for use anywhere.

Source: http://www.searchlores.org/bookmarklets.htm