repl.it

[Fi8sVrs]

The repl.it project is an attempt to create an online environment for interactively exploring programming languages. It provides a fully-featured terminal emulator and code editor, powered by interpreter engines for more than 15 languages.

All our interpreters are written in (or compiled to) JavaScript, and run completely on the user's device, regardless or whether it's a desktop, laptop or phone.

The repl.it code is open source and is available on GitHub.

Language:

Classic

• QBasic: Structured programming for beginners.
  
• Forth: An interactive stack-oriented language.
  

Practical

• Ruby (beta): A natural dynamic object-oriented language.
  
• Python: A dynamic language emphasizing readability.
  
• Lua: A lightweight multi-paradigm scripting language.
  
• Scheme: An elegant dynamic dialect of Lisp.
  

Esoteric

• Emoticon: Programming with an extra dose of smile.
  
• Brainfuck: A pure Turing machine controller.
  
• LOLCODE: The basic language of lolcats.
  
• Unlambda: Functional purity given form.
  
• Bloop: Nothing but bounded loops.
  

Web

• JavaScript: The de facto language of the Web.
  
• Javascript.next: The JavaScript of tomorrow.
  
• Move: The easy way to program the web.
  
• Kaffeine: Extended JavaScript for pros.
  
• CoffeeScript: Unfancy JavaScript.