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OBJ to GLB converter, without the upload.

Turn an OBJ model into a GLB for the web and AR. It is converted in your browser, so the file never leaves your device.

Drop OBJ files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert OBJ to GLB

  1. Add your OBJ 3D models

    Drop OBJ files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. GLB is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the GLB, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The OBJ to GLB converter is part of this page and runs inside your browser. Your 3D models are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

OBJ to GLB: what to expect

GLB is the format web 3D viewers, game engines and AR tools load directly, while OBJ is the older text interchange format. Converting puts a model into the file type that browsers and phones display without extra steps.

The model is converted as triangles: lines and points are dropped, positions are used as they are, and no axis conversion is applied, so a model that is Y-up in glTF and Z-up in STL, OBJ and PLY is written exactly as it was read. Everything, geometry and colours, goes into one binary file. Models up to 3,000,000 triangles are accepted.

OBJ vs GLB

OBJ

Wavefront OBJ model

OBJ is a text format that lists vertices, texture coordinates, normals and faces, with materials in a companion .mtl file. It has no animation or scene hierarchy, but it is so simple that almost every 3D program reads and writes it.

Opens in Blender, Maya, 3ds Max, MeshLab and nearly every 3D program

OBJ converter
GLB

GLB 3D model

GLB packs a glTF scene, its geometry and its textures into one binary file, so it can be shared, uploaded or opened in an AR viewer without any companion files. Most 3D viewers on the web and social platforms prefer it.

Opens in Blender, web 3D viewers, game engines, Windows 3D Viewer and AR tools

GLB converter
OBJ compared with GLB
OBJWavefront OBJ modelGLBGLB 3D model
Stands forWavefront OBJBinary glTF
Type3D model3D scene
CompressionNone (text)None
IntroducedThe late 1980s, by Wavefront Technologies2015, by the Khronos Group
Opens inBlender, Maya, 3ds Max, MeshLab and nearly every 3D programBlender, web 3D viewers, game engines, Windows 3D Viewer and AR tools
Best forExchanging a mesh between 3D programsSharing one self-contained 3D model for the web or AR
File extension.obj.glb

Questions

Are my 3D models uploaded anywhere?

No. The OBJ to GLB conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting OBJ to GLB?

No further quality is lost: GLB stores the decoded audio exactly. The result is identical in content.

Can I convert several OBJ files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert OBJ to GLB on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the OBJ file, press Convert and save the GLB. There is nothing to install.

Is there a file size limit?

Yes. Models up to 150 MB and 3,000,000 triangles are accepted; a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.