3D AI Studio

Convert GLB to OBJ - Free Online Converter

Drop a .glb file below and download it as .obj in seconds. The conversion runs entirely in your browser - no upload, no signup, no watermark. The output is a plain-text OBJ with geometry, UV coordinates, and normals that every 3D tool of the last 30 years can open.

Updated July 2026

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Done in seconds

Your GLB converts to OBJ locally in your browser - no upload queue, no waiting.

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Private by design

Your file never leaves your device. Nothing is uploaded, nothing is stored.

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Free, no strings

No signup, no watermark, no file limit - convert as many files as you need.

How to convert glb to obj

01

Drop your GLB file

Drag the .glb file into the converter above or click to browse. No account and no upload - the file stays on your device.

02

Conversion runs in your browser

The model is parsed and rewritten locally, in seconds for typical files. Geometry is carried over 1:1 - no remeshing, no quality loss.

03

Download the OBJ

The .obj download starts from the same spot. Convert as many files as you like - there is no limit or watermark.

GLB and OBJ, explained

.glb

What is GLB?

GLB is the binary form of glTF, often called "the JPEG of 3D". One file packs the full scene: meshes, PBR materials, embedded textures, animations, and a real unit scale (meters). It is the standard for 3D on the web and the default output of most AI 3D generators.

Because everything is embedded in a single binary file, GLB transfers cleanly between tools with nothing lost in transit. glTF/GLB is an open Khronos standard, loads fast, and is supported by every modern engine, DCC tool, and web viewer.

Developed by
Khronos Group (2015)
Structure
Single binary file: JSON scene + buffers + textures
Used by
Web viewers, Three.js, Unity, Unreal, AR apps, e-commerce platforms
.obj

What is OBJ?

OBJ is the plain-text workhorse of 3D interchange. It stores vertices, faces, UV coordinates, and normals in a human-readable file, with materials referenced from a companion .mtl file. Practically every 3D application of the last 30 years can read it.

Because OBJ splits materials and textures into separate files, a bare .obj carries geometry and UVs but shows up untextured unless the .mtl and texture images travel with it. It has no units, no rigging, and no animation - which keeps it simple and universally compatible.

Developed by
Wavefront Technologies (circa 1990)
Structure
Plain-text geometry, with materials in a separate .mtl file
Used by
Blender, Maya, 3ds Max, ZBrush, game engines, 3D scanners

What survives the glb to obj conversion

Format conversion is honest work: some data has nowhere to go in the target format. Here is exactly what carries over.

Mesh geometry

Every mesh in the GLB scene is carried over exactly, with node transforms baked into the vertices.

UV coordinates & normals

Texture coordinates and normals are written into the OBJ, so re-texturing and clean shading work downstream.

Object structure

Meshes are written as OBJ groups; names may simplify. The assembled layout is preserved via baked transforms.

PBR materials & textures

This converter writes the .obj only - no .mtl sidecar or texture files. OBJ's material system predates PBR anyway; expect to reassign materials in the target tool.

Animations & rigs

OBJ is a static format; GLB animation clips and skins have no OBJ equivalent.

When should you convert GLB to OBJ?

Convert to OBJ when a tool refuses GLB: older DCC pipelines, ZBrush workflows, CAD importers, render engines, and countless scripts speak OBJ natively. It is the lowest common denominator of mesh interchange.

Keep the GLB when the consumer is modern: engines, web viewers, and AR all prefer it, and it carries textures and animations in one file that OBJ scatters or drops.

And if what you actually need is a new model rather than a new file format: 3D AI Studio's main tool can generate 3D models from photos with AI - with exports to every format on this page.

GLB to OBJ - frequently asked questions

Made with 3D AI Studio

Need new game assets, not just a format swap?

3D AI Studio creates game-ready 3D assets from images or text with AI - textured, exportable to GLB and FBX, and usable in Unity or Unreal. 100 free credits per month.

100 free credits / month No credit card Exports GLB, STL, OBJ, FBX, USDZ

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