Heightmap Level Generator
Heightmap Level Generator: A free, open-source map generator with detailed terrain controls and engine-ready exports. Ranked #1 of 27 in Game Map Generators by our editors (9.4/10); pricing: Free plan; best for free, export-ready terrain and world maps.
At a glance
- Editor score9.4 / 10
- PricingFree plan
- Best forFree, export-ready terrain and world maps
- Free planYes
- Paid fromFree
- Generation methodProcedural
- Facts checked20 Sep 2026
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.
Our verdict on Heightmap Level Generator
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.
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Heightmap Level Generator pricing
Heightmap Level Generator fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Generation method | Procedural |
| Map dimension | Both |
| Custom assets | Yes |
| Seed control | Yes |
| Engine export | Unreal Engine, Unity, Godot Terrain3D, three.js |
| Export formats | 16-bit PNG, RAW .r16, RGBA PNG, JSON, glTF .glb |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 5 integrations: Unreal Engine, Unity, Godot Terrain3D, three.js, Houdini |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Heightmap Level Generator integrations
Heightmap Level Generator lists 5 integrations on its own site.
- Unreal Engine
- Unity
- Godot Terrain3D
- three.js
- Houdini
Alternatives to Heightmap Level Generator
- World MachineA mature procedural terrain tool with deep erosion, water, material, and export workflows.9.2
- Instant TerraA deep procedural terrain workflow for studios automating large environments.9.1
- World CreatorA broad Windows terrain tool with deep simulation, export, and engine-bridge coverage.9.0
See all Heightmap Level Generator alternatives →
Heightmap Level Generator vs the competition
- Heightmap Level Generator vs World Machine
- Heightmap Level Generator vs Instant Terra
- Heightmap Level Generator vs World Creator
- Heightmap Level Generator vs Gaea
- Heightmap Level Generator vs 3D Dungeon Generator
- Heightmap Level Generator vs Dungeon Generator for Unreal Engine 5
Compare Heightmap Level Generator with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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