HEIGHT MAP GENERATOR

Procedural Noise & Terrain Tool for Heightmaps

Generator Controls

Terrain Type

Loads pre-configured parameters tailored for specific world biomes.

Seed

The base string used by the PRNG. Same seed produces identical maps.

Generates a new random string seed.

Noise Scale 50

Zooms noise in or out. Lower values increase feature frequency; higher values create large terrain masses.

Octaves (Detail) 4

Number of noise layers combined. More octaves add intricate surface roughness and micro-details.

Persistence 0.50

Controls how quickly smaller noise octaves fade. High values make terrain jagged; low values make it smooth.

Lacunarity 2.0

Frequency multiplier per octave. Higher values create finer, highly dense detail patterns.

Height Curve 1.0

Power exponent applied to output height. Values >1 create sharp peaks; values <1 flatten lowlands.

Terrace Steps 0

Quantizes continuous height into stepped bands. Perfect for voxel games, plateaus, and tilemaps.

View Mode

Switches display modes: Raw Grayscale for heightmap imports, or visual palettes for debugging.

Apply Island Mask

Forces heightmap edges toward zero to guarantee an ocean-surrounded landmass.

Invert Height

Flips lowlands to mountains and peaks to valleys (0 becomes 255 and vice versa).

Downloads full 512x512 uncompressed 8-bit heightmap image file.