TraceKit : Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.
Styletron : Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
EnhanceJS : EnhanceJS is a new Javascript framework designed to improve the application of Progressive Enhancement by first testing browser capabilities for key J...
PeerJS : Peer-to-peer data in the web browser.
PeerJS completes WebRTC as an API abstraction, connection broker, and binary serialization format
jQuery : The Write Less, Do More, JavaScript Library
The Closure Compiler, Library, Templates, and Stylesheets help developers create powerful and efficient JavaScript.