Turn a plain-text .obj into a single binary .glb that the whole modern stack reads. It runs in this tab, costs nothing, and no account is involved anywhere.
Three steps, one page, no account. The whole conversion is a local operation — the slowest part is you finding the file.
Drag the file onto the box above. It is read straight off your disk with the browser's File API — no upload, and no progress bar to a server.
The file is parsed, every mesh is baked into world space, and the result is written out in the target format. Your CPU does the work, so a client's unreleased model never leaves the room.
Save the converted file and open it wherever you were headed. Nothing is watermarked and nothing expires.
They solve different problems, which is exactly why one direction of this conversion costs you something and the other does not.
OBJ is a plain-text mesh format from the late eighties that every 3D application on earth can read. Geometry, normals and UV coordinates live in the .obj itself; materials live in a separate .mtl file beside it.
GLB is the binary flavour of glTF — one file carrying geometry, UV coordinates, materials, textures and a scene graph together. It is what the web, Blender, Unity, Unreal and Three.js all read natively, and it is what this site's generator hands you.
Every conversion is a trade. Any tool that tells you otherwise is lying to you, so here is the exact ledger before you commit.
GLB is the format to keep. It holds geometry and texture in one file and every modern engine reads it, which is why the generator on this page outputs it. Convert onwards whenever a slicer or an older pipeline needs something else.
OBJ is thirty-odd years old and still everywhere, which means a lot of useful geometry is stuck in a format the web cannot display. This is the conversion that unsticks it.
This converter reads the .obj itself, so a material defined in a separate .mtl does not come with it — the GLB arrives untextured. Check the result in the viewer before you build anything on top of it.
You do not have to go back to the home page. Type a prompt or drop an image, and take the .glb — free, anonymous, no watermark.
No. The converter reads the .obj geometry — vertices, normals and UVs — and writes those into the GLB. Because the UVs survive, you can point the material at the same texture images again in Blender or your engine and it will line up.
Usually by a lot. OBJ writes every coordinate as human-readable text, while GLB stores the same numbers as binary buffers, so the same mesh commonly lands at a fraction of the size.
Same converter, same rules: free, in your browser, no signup.
3D AI Studio generates the .glb too — free, anonymous, no watermark.
No signup, no upload, no watermark — and the converter does not care how big the file is.
FreeNo signupNothing uploadedNo watermark
