OBJ to GLB Converter

Convert OBJ models to GLB for the web, AR and three.js. Free online OBJ to GLB converter producing a single binary file.

Drop 3D files here or click to browse
STL, OBJ, PLY, GLB/glTF, 3MF, STEP, or a ZIP. Up to 20 MB free, no sign-up.
Free: 20 MB per file, 3 files per batch. Need more?

GLB packs a model into one binary file that browsers, AR viewers and game engines load quickly. OBJ is older and often split across several files. Converting to GLB gives you one file that works in three.js, model-viewer, and most AR tools.

Why convert OBJ to GLB?

  • Show 3D models on websites with three.js or <model-viewer>
  • Use models in AR on iOS and Android
  • Replace an OBJ + MTL bundle with one file

What to know

  • Upload the .obj on its own. Separate .mtl files and textures are not read, so the GLB carries geometry and any vertex colors only.

How to convert OBJ to GLB

  1. Select your .obj file above.
  2. Click "Convert to GLB".
  3. The .glb file downloads automatically with the same name as your original.