Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 50+ programming languages: Clojure, Haskell, Kotlin (beta), QBasic, Forth, LOLCODE, BrainF, Emoticon, Bloop, Unlambda, JavaScript, CoffeeScript, Scheme, APL, Lua, Python 2.7, Ruby, Roy, Python, Nodejs, Enzyme, Go, C++, C++11, C, C#, F#, HTML, CSS, JS, Rust, Swift, Python (with Turtle), Jest, Django, Express, Sinatra, Ruby on Rails, R, Next.js, GatsbyJS, React, React Typescript, React Reason, bash, Quil, Crystal, Julia, Elixir, Nim, Reason NodeJs, Erlang, TypeScript, Pygame, Love2D, Tkinter, Java Swing, Emacs Lisp (Elisp), PHP Web Server, SQLite, Java, PHP CLI, Pyxel