Kalendae is an attempt to do something that nobody has yet been able to do: make a date picker that doesn’t suck.
mapper.js allows you to add automatic area highlighting to image maps on your webpages (inc. export to SVG).
EpicEditor allows for all kinds of customization. It is easy to implement: simply clone the repo and then it only needs an element to add the editor to and then you call load() when you’re ready.
It’s a combination of a simple-to-use interface with advanced and efficient image/canvas editing techniques. It is also completely library independent and can be safely used next to jQuery, YUI, Scriptaculous, MooTools, etc.
Renders mathematics dynamically so that formulas and symbols are nicely integrated into the surrounding text – with matching font size, margins, and baseline.
polyClip.js is a script, built on jQuery that allows us to clip any image with imagemap coordinates using HTML5 Canvas.
Supported by Mozilla Labs, its goal is to create a general-purpose, web standards-based platform for parsing and rendering PDFs, and eventually release a PDF reader extension powered by pdf.js.