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.
repl.it : Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 30+ programming languages. including JavaScript, Pytho...
Prettier : Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the max...
SQL Fiddle : A tool for easy online testing and sharing of database problems and their solutions.
openDAW : openDAW is a next-generation web-based Digital Audio Workstation (DAW) designed to democratize music production and to resurface the process of making...
