Pretty time-series line graphs

Add Github like mentions autocomplete to your application.

Open-source Javascript Pivot Table (aka Pivot Grid, Pivot Chart, Cross-Tab) implementation with drag'n'drop.

Quick and easy product tours with Twitter Bootstrap Popovers

Classic version of Turbolinks. Now deprecated in favor of Turbolinks 5.

HTML5 application architecture using Backbone.js

Simple rich text editor (contentEditable) for jQuery UI

Embedded CoffeeScript templates

A dynamic grid system with drag and drop functionality.

Caniuse command line tool

Endless/infinite scrolling/pagination.

CoffeeScript API documentation generator. It's like YARD but for CoffeeScript!

redis-like wrapper for javascript storage

Haml templates where you can write inline CoffeeScript.

Adding a second face to your application's JavaScript

Collaborative markdown with math

QueryEngine provides extensive Querying, Filtering, and Searching abilities for Backbone.js Collections as well as JavaScript arrays and objects

OBSOLETE - continuous javascript integration

Easy Communication Protocol For Web Workers

Given a JSON Schema, provide a random valid instance

Collection+JSON Client for JavaScript

A flexible and powerful stand-in API server