Fractal Trees

Each session starts with a grid of randomly branched trees — spindly, lopsided, surprisingly elegant — and your job is simply to pick the ones you like best. Those selections become parents, and a genetic algorithm breeds a new generation from their structure. Branch angles, recursion depth, and fork patterns all shift and combine in ways you didn't plan. Some results are skeletal and spare; others bloom into dense, symmetric fractals that look almost intentional.

It belongs squarely in the creative apps category because there's no goal beyond curation. You're not drawing — you're steering evolution, nudging a population of patterns toward something that appeals to you. If you enjoy building visual systems from the ground up, Color Palette Builder pairs well as a way to extract and save colors from the trees you generate.

Everything runs on mouse clicks alone, and a full breeding session takes about two minutes per generation — it's the kind of app that rewards a slow afternoon rather than a quick break.