1. The Write Less, Do More, JavaScript Library.

  2. Collaboration app for UI designers & frontend developers

  3. JavaScript Library for cross-platform web and mobile app development with HTML5 JavaScript widgets. Easy integration with popular JavaScript Frameworks.

  4. MooTools (My Object-Oriented Tools) is a lightweight, object-oriented, web-application framework...

  5. Enyo is a JavaScript app framework enabling developers build native-quality HTML5 apps that run everywhere — from phones and tablets to PCs and TVs.

  6. Lo-Dash is a drop-in replacement for Underscore.

  7. Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API.