Move an OBJ into the modern glTF ecosystem while keeping a readable JSON file you can edit. This converter runs entirely in your browser: the file is processed on your own device and never uploaded.
Why convert OBJ to GLTF?
Move an OBJ into the modern glTF ecosystem while keeping a readable JSON file you can edit.
How it works
Drop your .obj file above and download the .gltf. The conversion engine (Assimp, compiled to WebAssembly) runs inside the page, so it works the same on Windows, macOS, Linux and ChromeOS without installing anything.
OBJ vs GLTF
OBJ (Wavefront): OBJ is a simple text mesh format from Wavefront Technologies. It stores vertices, faces, normals and texture coordinates; materials live in a separate .mtl file next to it. Used by: Blender, Maya, 3ds Max, ZBrush, and photogrammetry and 3D-scanning tools.
glTF (GL Transmission Format): glTF is the Khronos Group’s open standard for delivering 3D models, often called “the JPEG of 3D”. A .gltf file is JSON that describes meshes and physically based (PBR) materials, with binary data and textures alongside or embedded. Used by: three.js, Babylon.js, Blender, Sketchfab, and developers who want a readable, editable model file.
Quality notes
Geometry, normals and UVs convert. Without the .mtl file and textures, the model uses a default material. glTF output is a .gltf file plus a .bin file with the geometry, so the download is a ZIP containing both — keep them together.
Common use cases
Preparing assets for three.js or Babylon.js; converting scan output for web pipelines.
Frequently asked questions
glTF or GLB?＋
Choose glTF to read or edit the JSON; choose GLB for one-file delivery.
Are materials kept?＋
Only if the .mtl information is available; a lone OBJ has none.
Is it uploaded?＋
No.
Does it work on Mac and Linux?＋
Yes, in any modern browser.