TiddlyWiki is a complete interactive wiki in JavaScript. It can be used as a [[single HTML file in the browser|SingleFileApplication]] or as a powerful [[Node.js application|Node.js]]. It is highly customisable: the entire user interface is itself implemented in hackable WikiText.
This is version <<version-link>> of ~TiddlyWiki, a major reboot designed [[for the next 25 years|Future of TiddlyWiki]]. It is currently in beta (see the detailed ReleaseHistory) with a RoadMap for moving to the full release. It is a great time to [[get involved|Community]] and support the future development of ~TiddlyWiki.
The original "Classic" version of TiddlyWiki is still available at http://classic.tiddlywiki.com. Note that it is not fully backwards compatible: existing content will need massaging, while plugins and themes will have to be completely rewritten. The upgrade path will get smoother as the new version matures.