Material Maker - Cross-platform, procedural texture generation tool.
Pattern Monster - Pattern Monster is a pattern maker app to create vector patterns for your projects
NeoTextureEdit - NeoTextureEdit is an open source (GNU LGPL v.
Patterninja - Create patterns online
TextureLab - Free, Cross-Platform, GPU-Accelerated Procedural Texture Generator.
Patternizer - Create awesome background patterns in just a few minutes