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3D File Converter
Convert & Optimize 3D Meshes
Convert between OBJ, STL, GLTF and GLB formats. Reduce polygon count for faster web rendering and repair broken meshes with a single click.
Drop your 3D file here
Supported: .obj, .stl, .gltf, .glb — max 100 MB
Format Conversion
Convert between OBJ, STL, GLTF and GLB with full mesh fidelity.
Polygon Decimation
Reduce mesh complexity by up to 90% using quadric error decimation.
Mesh Repair
Fix inverted normals and fill holes to produce watertight meshes.
Built for Developers & 3D Artists
Choose the right format for every use case — web-ready GLB for Three.js, standard GLTF for maximum compatibility, or STL for 3D printing workflows.
- Python Trimesh backend — battle-tested mesh processing
- Quadric error decimation preserves visual fidelity
- Supports OBJ, STL, GLTF and GLB input formats