Csso
CSS-optimizer
Vis
Dynamic, browser-based visualization library
React Native Web
React Native for Web
Lodash
An alternative to Underscore.js, delivering consistency, customization, performance, and extra features.
Underscore
JavaScript's utility _ belt
Grapnel.js
A simple, lightweight library making it easy to create routes or run events based on a specific URL hashtag.
Rx Js
The Reactive Extensions for JavaScript
Fast.js
Faster user-land reimplementations for several common builtin native JavaScript functions.
Rest
RESTful HTTP client for JavaScript
Bootstrap Ajax
A library for adding declarative ajax functionality to your website
Highland
High-level streams library for Node.js and the browser
Diagram
JS tool for making node graphs. Inspired by dependency graph
History.js
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.
Fluxible
A pluggable container for isomorphic flux applications
Then.js
The fastest, smallest, fully compatible, full-featured asynchronous module!
101
A modern JS utility library
JSON Editor Online
A web-based tool to view, edit and format JSON