myCompiler - Run your favourite programming languages online
asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
CodeChef IDE - CodeChef IDE is a free online tool for developers helping them in writing codes and programs.
PabloDraw - PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor/viewer with multi-user capabilities.
Online Python - Online Python is a web application where you write codes in python language in the dedicated text space and the shell output is delivered to you in another text box on the right.
JavE - JavE (Java Ascii Versatile Editor) is a free Ascii Editor.