Mesh Simplification Online
Supported Formats
| Format | Materials | Notes |
|---|---|---|
| GLB | Preserved | Recommended — single file with geometry, materials, and textures bundled. Best results. |
| glTF | Partial | Geometry only. External .bin and texture files are not uploaded. Convert to GLB first. |
| OBJ | No | Geometry only. MTL and texture files are not supported. |
| FBX | Partial | Materials preserved when embedded. External textures are ignored. |
| STL | No | Geometry only, no material data in format. |
| DAE | Partial | Materials preserved when embedded. External textures are ignored. |
| 3DS | Partial | Materials preserved when embedded. External textures are ignored. |
For formats without material support, convert your model to GLB before uploading. You can use glTF Transform or Blender (File → Export → glTF Binary).
How to Use
- Upload — Drop a 3D file or click to browse.
- Simplify — Drag the slider to reduce polygon count. The preview updates in real time.
- Download — Export the simplified model in GLB, OBJ, STL, or USDZ.
Tolerance
Controls the maximum geometric error allowed during simplification. Lower values preserve more detail but remove fewer polygons. Higher values allow more aggressive reduction.
- Default: 1 — good balance between quality and reduction.
- 0 — no error limit, maximum reduction at each level.
- Increase tolerance if the slider stops reducing faces before reaching your target.