Source .obj
OBJ
Plain-text geometry with an .mtl sidecar for materials — universal, and very old.
- Compression
- Lossy
- Transparency
- Not supported
- Keeps
- Vertices, normals, UVs and material references
- Gives up
- Animation, rigs and scene hierarchy
3D model converter
OBJ to GLB Converter
Turn OBJ files into GLB without installing anything. The target format on this page is already set to GLB, so a single file or a whole folder is one press of Convert away.
OBJ GLB
Files travel over TLS and are deleted from the server as soon as the conversion finishes.
OBJ and GLB: what actually changes
OBJ is plain text plus an .mtl sidecar and a folder of textures — three or more files that have to travel together and constantly get separated. GLB packs the geometry, materials and every texture into a single binary file.
That makes it the format to hand to a web viewer, a game engine or an AR quick-look. Materials are converted to glTF's PBR model, so expect metallic and roughness values rather than the old specular workflow. OBJ carries no rig or animation, so there is none to lose.
How it goes3 steps
-
Add your OBJ files
Drop them onto the box above or click Select File. Add as many .obj files as you like — the whole batch converts in one go, and duplicates are ignored. -
Confirm GLB as the output
GLB is already selected as the target format on this page. Tweak the options if you need something other than a straight GLB file. -
Download your GLB
Hit Convert and grab the finished GLB files individually or as a single ZIP. Everything is deleted from the server once you have them.
Format facts
What each side of this conversion is good at, so you know what you are trading away.
Result .glb
GLB
GlTF packed into a single binary file, textures and all.
- Compression
- Lossless
- Transparency
- Supported
- Keeps
- Everything glTF holds, in one self-contained asset
- Gives up
- The ability to hand-edit the JSON
Related converters
Other routes in and out of these formats.