Faster alternative to Ramda in just 10kB
Dynamic, browser-based visualization library
Jailed - execute untrusted code with custom permissions
Simple AMD and CommonJS module bundler.
Checks if the current page is visible or not
A small, fast module and resource loader with dependency management. (AMD, CommonJS Modules/1.1, CSS, HTML, etc.)
Ajax with less suck - (and node.js HTTP client to match)
Create objects from reusable, composable behaviors.
Google Analytics on Steroids. A Google Analytics implementation with more power features.
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.
Supermodel - Minimal Model Tracking for Backbonejs