myCompiler - Run your favourite programming languages online
Codefile - Create collaborative code files & share it in real time
CodeChef IDE - CodeChef IDE is a free online tool for developers helping them in writing codes and programs.
TryCode - Realtime collaborative code editor (beta)
Browxy - Browxy is a web application that serves as an integrated development environment where you can write in coding languages, compile them or edit them.
CodeShare.io - Realtime code sharing for developers