Heightmap Level Generator review
A free, open-source map generator with detailed terrain controls and engine-ready exports.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Heightmap Level Generator is a browser-based, open-source tool for creating procedural terrain and world maps for game development. It is aimed at teams and individuals working with Unreal Engine, Unity, Godot Terrain3D, three.js, Houdini, WebGPU, or related terrain workflows. The generator covers heightmaps as well as roads, towns, rivers, lakes, erosion, cliffs, hills, mountains, and biome materials. A 2D color-map preview, 3D terrain preview, and first-person walk mode help users inspect generated worlds before exporting them.
The published project details show a free software model under the MIT License, with web and self-hosted platforms. Generation uses WebGPU and WGSL for GPU-based procedural terrain creation. Seed control is a central part of the workflow: users can create repeatable terrain, compare seeds side by side, and adjust live terrain, road, world, and material controls. JSON save/load and shareable configuration links also support repeatable configurations and collaboration around specific map setups.
Export breadth is a major reason to consider the tool. It supports Unreal Engine, Unity, Godot Terrain3D, and three.js exports, with formats including 16-bit PNG, RAW .r16, RGBA PNG, JSON, and glTF .glb. Output can include heightmaps, splatmaps, masks, layouts, metadata, and meshes, while custom texture replacement is available by biome and material layer. Choose Heightmap Level Generator when free, repeatable procedural terrain and varied export assets are priorities. It is less suitable for teams seeking a hosted, non-GPU-dependent workflow or a tool centered outside terrain and map generation.
Heightmap Level Generator pros and cons
- Where it wins
- Procedural terrain includes roads, towns, rivers, lakes, and erosion.
- Repeatable seeds support comparison and consistent terrain generation.
- Exports heightmaps, masks, layouts, metadata, and glTF meshes.
- Where it doesn't
- Browser and self-hosted deployment may not suit every production workflow.
- GPU-based generation depends on WebGPU and WGSL support.
- Terrain-focused exports may require additional engine-side implementation.
Heightmap Level Generator fact sheet, pricing and score →
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