06/06/2011

• draw.io : Online diagram/mockups design.
• repl.it : Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 30+ programming languages. including JavaScript, Pytho...
• kuler : Color palette generation tool
• Validator.nu : (X)HTML5 Validator
• Online YUI Compressor : This is a web interface to compress your JavaScript or CSS.