CodeShare.io - Realtime code sharing for developers
Pattern Monster - Pattern Monster is a pattern maker app to create vector patterns for your projects
CodePen - A front end web development playground.
PatternPad - Create beautiful geometric patterns
Liveweave - Liveweave is a HTML5, CSS3 & JavaScript playground for web designers and developers
SVG Stripe Generator - SVG Stripe Generator is an easy-to-use tool that enables you to create unlimited stripes and then download them to the device.