Feather Wiki is a lightning fast infinitely extensible tool for creating personal non-linear notebooks, databases, and wikis that is entirely self-contained, runs in your browser, and is only 55 kilobytes. The app and all of the content you create using it are stored within the single HTML file generated when you save your wiki. Publishing your content for the world to see is as simple as uploading that file to a web server, and updating is as simple as overwriting the file.

It was created to be like TiddlyWiki but with the smallest file size possible and a style more reminiscent of certain other popular wikis. Feather Wiki provides low-level access to its underlying code framework, so if there's something it can't do out of the box, then you can make it do that thing yourself.