Blocco - Blocco is a customizable geometric pattern kit
Pattern Monster - Pattern Monster is a pattern maker app to create vector patterns for your projects
PatternPad - Create beautiful geometric patterns
Patterninja - Create patterns online
GeoKone - A web application for drawing awesome geometric shapes
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.