Transcrypt

Transcrypt is a Python to JavaScript transpiler.

Babel

Babel is a compiler for writing next generation JavaScript.

Inspired by Babel, Bublé is an ES2015 compiler that takes your ES2015 JavaScript code and…

Unfancy JavaScript

Open-source JavaScript framework to create cross-platform and hybrid game engines, games, emulators, multimedia libraries and apps

Lightweight, interpreted, object-oriented language with first-class functions

Kaffeine is a set of extensions to the Javascript syntax that attempt to make it nicer to use.

LiveScript is a language which compiles down to JavaScript.

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TypeScript allows developers to compile a superset of JavaScript to plain JavaScript on any browser, host, or operating system.