Recently I looked again for pattern generators, after all I made some myself (see links below ;-)) and I want to know what great ideas other people have ;-)
One of these great ideas ist the Kumihimo pattern planner.
You can get with it the initial position of the threads for a simple 8-braid for a given pattern.
They didn’t explain what a ‘simple 8-braid’ is but I think that it is the same as in my Kumihimo entry, I didn’t have the time to check this, yet.
Maze Pattern Generator
Pattern Generator (Cellular Automaton)
Random Squares Pattern Generator
With this comes the entry ‘What Can You Do With Filet Crochet/Cross Stitch Embroidery Charts?’