Material Maker - Cross-platform, procedural texture generation tool.
Pattern Monster - Pattern Monster is a pattern maker app to create vector patterns for your projects
TextureLab - Free, Cross-Platform, GPU-Accelerated Procedural Texture Generator.
PatternPad - Create beautiful geometric patterns
Filter Forge - On the surface, Filter Forge is just a Photoshop plugin, a pack of filters that generate textures...
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.