Converters · OBJ → GLB
OBJ to GLB Converter
Free, private, in your browser. Convert OBJ to GLB — no signup, no upload.
Unlike online converters that upload to a server, your file never leaves your browser.
⇄ Need GLB to OBJ instead?Drop your 3D file here
or click to browse — .obj files up to 200 MB
When to convert OBJ to GLB
You have an OBJ from a modeling tool or an asset library and need a GLB for the web — a three.js / React Three Fiber viewer, an AR quick-look, a game engine, or an AI pipeline that speaks glTF. GLB packs your mesh into one compact binary file that browsers load fast.
OBJ vs GLB: what’s the difference?
OBJ is the plain-text mesh format from the DCC and CAD world, holding geometry as named vertices with materials kept in a separate .mtl file. GLB is the modern binary standard for the web, three.js, game engines and AR, packing everything a viewer needs into one compact, self-contained file. Converting OBJ to GLB gives you a single web-ready asset with your geometry intact — ideal for loading straight into a browser scene or AR viewer.
What OBJ → GLB keeps and drops
Preserved
- ✓Full mesh geometry — every vertex and face
- ✓Real-world scale and proportions
- ✓A single compact file, ready for the web
Dropped
- ✗Materials and textures — MeshRefinery does not read the .mtl or embed textures
- ✗UV coordinates — this pass exports geometry only
- ✗Surface color, so the model loads untextured in a viewer
How to convert OBJ to GLB
- 1Drop your .obj file onto the box above, or click to browse.
- 2The file is parsed in your browser — nothing is uploaded.
- 3Check the 3D preview, then click “Convert to GLB”.
- 4A single .glb file downloads, ready for three.js, AR or the web.
The GLB bundles your geometry into one file, but it will not contain UVs, materials or textures — MeshRefinery does not pull in the .mtl or image files. Your model loads correctly but untextured; if you need PBR materials in the GLB, apply them afterwards in Blender or three.js and re-export.
OBJ to GLB — FAQ
Will my .mtl materials and textures carry over?
This pass converts geometry only — it doesn’t carry UVs or bundle the .obj’s .mtl file or texture images into the GLB. Reassign materials in your web or 3D tool after import.
Why GLB instead of glTF?
GLB packs everything into a single binary file — simpler to host and load than glTF’s separate .gltf + .bin + textures. Most web viewers and AR tools expect GLB.
Is my OBJ uploaded anywhere?
No. The converter runs locally in your browser tab; your file never leaves your device.