generate massive amounts of fake data in Node.js and the browser
Chained Selects jQuery plugin.
You want fart noises as you scroll? We've got you covered.
A Gantt chart directive for Angular.js without any other dependencies.
Load modules on demand (lazy load) in AngularJS
A touchable jQuery lightbox
Keep multiple browsers & devices in sync when building websites. http://browsersync.io
Object.observe polyfill/shim trying to be compliant
Multiple file upload plugin with progress-bar, drag-and-drop.
Foresight.js gives webpages the ability to tell if the user's device is capable of viewing high-resolution images (such as the 3rd generation iPad) before the image is requested from the server. Additionally, it judges if the user's device currently has a fast enough network connection for high-resolution images. Depending on device display and network connectivity, foresight.js will request the appropriate image for the webpage.
A solid, fast Promises/A+ and when() implementation, plus other async goodies.