- MongoDb – Leading open-source NoSQL database.Mongodb Certification
- spludo -High performance serer side open source MVC framework.
YUI Library (open source)
jQuery (MIT License)
MooTools (Opensource MIT license)
Backbone provide structure for web applications. Its a MVC framework.
Angular JS (MIT License)
Angular JS is a best one to write client side web applications for smart browsers. You can make client side form validation, navigation, using Angular JS.
Read Angular JS Syllabus.