Kefir

A Reactive Programming library for JavaScript.

Akka

Build powerful reactive, concurrent, and distributed applications in Java and Scala

Easily create apps using the web technologies you know and love: HTML, CSS, and JavaScript.

Polymer is a library that uses the latest web technologies to let you create custom HTML elements.

Popular free terminal application. Mostly used as an SSH client.

Reactive Extensions for Javascript

Select2 offers customizable select box with support for searching, tagging, infinite scrolling, and many other used options.

Create vast expanses of terrains, add trees, select the best point of view and render…

The Write Less, Do More, JavaScript Library.