IronPython

IronPython is an implementation of the Python programming language running under .NET and Silverlight. It supports an interactive console with fully dynamic compilation. It's well integrated with the rest of the .

Free Open Source Mac OS X Windows Linux Python

LiveScript

LiveScript is a language which compiles down to JavaScript. It is a fork of Coco which is in turn derived from CoffeeScript. Like those two it has a relatively...

Free Open Source Mac OS X Windows Linux

Lasso

Lasso is one of the most popular programming languages on the web - though it is often overlooked given that it is commercial, not open-source. But for a small fee, a...

Freemium Mac OS X Windows Linux

Babel

Babel is a generic multi-purpose compiler for JavaScript. Using Babel you can use (and create) the next generation of JavaScript, as well as the next generation of...

Free Open Source Mac OS X Windows Linux Web Node.JS

Script#

Script# brings the power and productivity of C# and .NET tools to Ajax development by compiling C# source code into regular JavaScript.

Free Mac OS X Windows Linux

Kaffeine JS

Kaffeine is a set of extensions to the Javascript syntax that attempt to make it nicer to use. It compiles directly into javascript that is very similar, readable and...

Free Open Source Mac OS X Windows Linux

Racket

Racket (formerly PLT Scheme) is a modern programming language in the Lisp/Scheme family, suitable for a wide range of applications. It goes beyond Lisp and Scheme with dialects that support objects, types, laziness, and more.

Free Open Source Mac OS X Windows Linux BSD

Elixir

Elixir is a dynamic, functional language designed for building scalable and maintainable applications.

Free Open Source Mac OS X Windows Linux BSD FreeBSD

Crystal (programming language)

Programming language with Ruby-like syntax that compiles to efficient native code.

Free Open Source Mac OS X Linux

Solid

Solid - A minimalist interpreted language, with a clean object model and a tiny VM.

Free Open Source Mac OS X Windows Linux

Wyvern

Wyvern is a new programming language designed to help developers be highly productive when writing high-assurance applications. The first major innovation in Wyvern is...

Free Open Source Mac OS X Windows Linux

X10 (programming language)

The X10 programming language is organized around four basic principles of asynchrony, locality, atomicity, and order that are developed on a type-safe, class-based...

Free Open Source Mac OS X Windows Linux

Objective-J

objective-j is a programming language developed as part of the cappuccino web development framework.

Free Open Source Mac OS X Windows Linux Web

Coco

Unfancy CoffeeScript. Coco is a CoffeeScript dialect that aims to be more radical and practical.

Free Open Source Mac OS X Windows Linux

Blade

The core tools for Blade rich client development. Contribute to blade development by creating an account on GitHub.

Free Open Source Windows

Bublé

Inspired by Babel, Bublé is an ES2015 compiler that takes your ES2015 JavaScript code and turns it into code that can run in today's environments.

Free Open Source Mac OS X Windows Linux Self-Hosted Node.JS