These are some JavaScript applications I've made for competitions or out of general interest, some of them use the Canvas element from HTML5, none of them use JavaScript libraries.
Some more basic canvas demos:
I've mocked up a JavaScript syntax highlighter
In 2006/07 I made 10 Opera Widgets - some of these are the same as the apps above, some of them are not hosted anywhere else (haven't found the time).
Other unreleased projects:
- Panorama viewer
- Multi player chess network, including chess AI and game histories
- "SQL to Entity Attribute Sketch" - Current research project