A modern JavaScript utility library delivering modularity, performance, & extras.

The hackable text editor

jQuery JavaScript Library

Parse, validate, manipulate, and display dates in javascript.

Async utilities for node and the browser

Give your JS App some Backbone with Models, Views, Collections, and Events

JavaScript's utility _ belt

Ace (Ajax.org Cloud9 Editor)

🖍 Terminal string styling done right

☕️ simple, flexible, fun javascript test framework for node.js & the browser

Pug – robust, elegant, feature rich template engine for Node.js

Minimal templating on steroids.

Minimal templating with {{mustaches}} in JavaScript

Simple JavaScript testing framework for browsers and node.js

Grunt: The JavaScript Task Runner

Test spies, stubs and mocks for JavaScript.

JSHint is a tool that helps to detect errors and potential problems in your JavaScript code

Beautifier for javascript

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use…

CasperJS is no longer actively maintained. Navigation scripting and testing utility for PhantomJS and SlimerJS

The Backbone Framework

JavaScript YAML parser and dumper. Very fast.

get colors in your node.js console

⤴️ JavaScript Code Style checker (unmaintained)

Fast and efficient CSS optimizer for node.js and the Web

a glob matcher in javascript

Lightweight and powerful data binding.

rfc 2616 compliant HTTP static-file server module, with built-in caching.

Minimalistic BDD-style assertions for Node.JS and the browser.

Run tasks whenever watched files change.