Insanely fast, headless full-stack testing using node.js

ControlJS is a JavaScript module for making scripts load faster.

Standalone test spies, stubs and mocks for JavaScript. No dependencies, works with any unit testing framework.

Backbone supplies structure to JavaScript-heavy applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing application over a RESTful JSON interface.

Javascript testing framework inspired by Python's doctest

This is a pure-JavaScript library that detects whether Flash is blocked on the current page due to a Flash blocking extension.

Fast symmetric cryptography in Javascript

Highcharts is a charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application. Highcharts currently supports line, spline, area, areaspline, column, bar, pie and scatter chart types.