Noise Generator
Free Perlin and Simplex noise generator. Tune octaves, frequency, seed and color ramp for seamless heightmaps and textures, then export a PNG.
Seamless fractal noise for terrain, clouds and textures. Same seed → same field.
How to use the Noise Generator
- Set a seed; the same seed always gives the same noise.
- Tune Scale, Octaves and Persistence until the pattern looks right.
- Pick a color ramp: grayscale for a heightmap, or terrain, lava or ice.
- Click Export PNG.
Using it in your game
A grayscale PNG works as a heightmap for terrain (Godot’s HeightMapShape3D, Unity Terrain) or as a mask for clouds, fog and dissolve effects in a shader.
Frequently asked questions
What is this used for?
Procedural terrain, clouds, cave systems and textures. It generates fractal (fBm) Simplex noise you can export as a grayscale or colored heightmap.
Can I reproduce the same noise?
Yes — set a numeric seed and the exact same noise field regenerates every time.
Create game assets with AI
Generate original art, audio, and 3D models in seconds.