meSing.js : meSing.js is a JavaScript singing synthesis library that uses the Web Audio API's DSP capabilities in conjunction with the meSpeak.js speech synthesis...
jsmad : jsmad is a pure javascript MP3 decoder, based on libmad, with an ID3 decoder written from scratch.
Ember.js : A JavaScript framework for creating ambitious web applications
Vex : Vex is a modern dialog library which is highly configurable, easily stylable, and gets out of the way. You'll love vex because it's tiny (6kb minified...
Yjs : Yjs is a CRDT implementation that exposes its internal data structure as shared types. Shared types are common data types like Map or Array with super...
Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.