script.aculo.us : script.aculo.us provides you with
easy-to-use, cross-browser user
interface JavaScript libraries to make
your web sites and web applications fly.
jQuery : The Write Less, Do More, JavaScript Library
Styletron : Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
Passport : Passport is authentication middleware for Node.js. Extremely flexible and modular, Passport can be unobtrusively dropped in to any Express-based web a...
Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
A library to generate PDFs in client-side JavaScript.
