TiddlyWiki is a complete wiki in a single HTML file. It contains the entire text of the wiki, and all the JavaScript, CSS and HTML goodness to be able to display it, and let you edit it or search it. Without needing a server.

I played with TiddyWiki a bit, but wasn’t able to edit the pages in my browser, as promised. Perhaps the ad-blocker or some security feature on my browser is interfering with the operations. I’m blogging this so I can go back to it later.