Web Forms : Web Forms 2.0 Cross-Browser Implementation
polyfill : polyfill makes web development less frustrating by selectively polyfilling just what the browser needs. Use it on your own site, or as a service.
enquire.js : A lightweight, pure JavaScript library for responding to CSS media queries.
jsfx : This is a javascript library (with frontend) for sound effect generation.
howler.js : howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio.
nlp_compromise does NLP in the browser. It's a handy, and not overly-fancy tool for understanding, changing, and playing with english. We've also got a modest, though ambitious plugin ecosystem.