repl.it : Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 30+ programming languages. including JavaScript, Pytho...
ideone.com : Ideone is an online compiler and debugging tool which allows youto compile source code and execute it online in more than 60 programming languages.
Pure Data (PD) : Pure Data (aka Pd) is an open source visual programming language. Pd enables musicians, visual artists, performers, researchers, and developers to cre...
The Crystal Programming Language : Crystal is a programming language with the following goals:
Have a syntax similar to Ruby (but compatibility with it is not a goal)
Statically type-ch...
Gitpod : Gitpod is an open-source Kubernetes application providing fully-baked, collaborative development environments in your browser - powered by VS Code.
Ti...