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Implements the Processing API in javaScript and also converts Processing programs to javaScript

Processing.js implements the Processing API in JavaScript and also converts Processing programs to JavaScript, thus allowing someone to program an HTML 5/JavaScript program by just learning the Processing programming language.

Processing was originally developed to be easy for artists to program, but it is functional enough to be used for doing any visual programming including game making.

Processing itself is also free software, but it depends on non-free parts of Java; therefore Processing.js is a good replacement.



"IRC irc:// " IRC general channel


LicenseVerified byVerified onNotes
ExpatJgay6 April 2013
ExpatJgay8 April 2013
The source also ships with the tinylog lite JavaScript library. Note that this program is dual-licensed under the GNU GPL v3 and the Expat license.
BSD 3ClauseJgay8 April 2013
Note that Processing.js also ships with YUI, which is licnesed by Yahoo under a 3-clause BSD license they call the “YUI Compressor Copyright License Agreement”.

Leaders and contributors

John Resig Original Author

Resources and communication

Audience Resource type URI
Public Homepage
Public VCS Repository Webview
Public Mailing List
Public Bug Tracking
Public Forum
Public Download

Software prerequisites

This entry (in part or in whole) was last reviewed on 19 December 2014.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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