STL to glTF Converter
Convert STL meshes to glTF or GLB for the web, AR/VR or game engines — free, private, optimized.
Drop a 3D file here or click to browse
FBX is loaded via ufbx, other formats via Assimp
Supported: FBX, OBJ, DAE, PLY, STL, GLTF, GLB, 3DS, LWO, BLEND, X
.glb is a single compact binary file; .gltf is JSON with embedded buffers (easier to inspect).
Re-orders vertices and triangles for vertex-cache locality, overdraw and vertex fetch. Produces smaller, faster files.
Reduce triangle count by the chosen percentage. 0% keeps every triangle.
Re-encode embedded textures as supercompressed KTX2 for tiny GPU uploads. Wiring is in place; the encoder module ships in a follow-up.
Processing…
Convert STL to glTF in Your Browser
STL is the de-facto 3D-printing format but it lacks materials, UVs and animation — and its triangle soup is often huge. WebConverter reads STL through Assimp and writes a much smaller, modern glTF 2.0 / GLB via Magnum, with optional mesh optimization for the GPU.
