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glTF in · OBJ out · nothing uploaded

Convert GLB to OBJ for classic 3D apps

Some tools still only take OBJ. Drop a GLB from an AI generator or a web asset library and download an OBJ with its geometry, UVs and normals.

  • Geometry, UVs and normals kept
  • Compressed GLBs supported
  • Meshes keep their positions
  • Free and private

Updated by the

Quick answer

Updated

How do you convert GLB to OBJ?

To convert GLB to OBJ, load the glTF scene and write each mesh's vertices, UVs, normals and faces to an OBJ file. Kenerate's free converter does it in your browser, including Draco and Meshopt compressed GLBs. The OBJ keeps geometry, UVs and normals; textures stay in the GLB, so export them separately. Nothing is uploaded.

Key facts

Price
Free, no account
Converts
GLB (glTF 2.0 binary, Draco / Meshopt OK) → Wavefront OBJ
Kept
Geometry, UVs, normals, mesh positions
Not kept
Textures, PBR materials, animation
Orientation
Y-up as in glTF, or Z-up if you choose
Privacy
Converted locally — no upload

Why this tool

When you need OBJ instead of GLB

GLB is the modern delivery format; OBJ is the old universal one.

  • A brass compass model, half wireframe and half textured

    Older pipelines

    Tools for sculpting, retopology, CNC and some renderers read OBJ but not glTF.

    Try it
  • A textured sneaker 3D model with material spheres

    UVs preserved

    UV coordinates are written to the OBJ, so you can re-apply the texture maps later in your 3D app.

    Try it

Also

What else it does

  • Compressed input

    Draco and Meshopt GLBs are decoded first, so you don't need gltf-transform or Blender.

  • Positions kept

    Each mesh is written with its node transforms applied, so parts stay where they were.

How it works

How GLB becomes OBJ

Using three.js's glTF loader and OBJ exporter on your device.

  • Unpack

    The GLB container is read and compressed meshes are decoded.

  • Flatten

    Node transforms are applied so every mesh sits in the right place.

  • Orient

    Optionally scale the model and turn it Z-up.

  • Write

    Vertices, UVs, normals and faces are written as OBJ text.

How to

How to use the GLB to OBJ Converter

Time needed
Steps
4 steps

  1. Step 1

    Open the GLB

    Drop your .glb onto the box above, or try the sample astronaut.

  2. Step 2

    Preview

    Check the model and its triangle count.

  3. Step 3

    Pick OBJ

    Turn Z-up off to keep glTF's Y-up axes for game tools.

  4. Step 4

    Download

    Click Download OBJ.

Watch the tour · 1:48

Text, photo or multi-view to a textured GLB, nine engines, the viewer & lighting, compare engines, gallery, download & chat

Chapters

Who uses it

Who converts GLB to OBJ

  • AI 3D users

    Take a generated model into a tool that only accepts OBJ.

  • 3D artists

    Sculpt or retopologise a web asset.

  • CNC and laser users

    Feed a mesh into CAM software that reads OBJ.

  • Developers

    Get a plain-text mesh for scripts and tests.

Compare

GLB vs OBJ

What survives the trip.

GLB vs OBJ — checked 2026-10-01
GLBOBJ
Geometry, UVs, normalsYesYes
TexturesEmbeddedSeparate image files via .mtl
PBR materialsYesBasic .mtl materials only
Animation and rigsYesNo
EncodingBinary, compactText, larger

File formats

The formats this tool reads and writes

What each file can hold, what it can't, and where it opens. Facts link to the format's own spec or reference page.

The formats this tool reads and writes — checked 2026-10-01
.glb · GLB.obj · OBJ
Full nameglTF 2.0 BinaryWavefront OBJ
Made byKhronos Group, 2017 (glTF 2.0)Wavefront Technologies, 1980s
KindSingle-file scene with PBR materialsPlain-text mesh
HoldsMeshes and PBR materials, Textures in the same file, Animation and skinsVertices, faces, UVs and normals, Materials via a separate .mtl file
NoUnits beyond metres, CAD precisionAnimation and rigs, Embedded textures
Best forWeb, AR and real-time apps — the “JPEG of 3D”Moving static meshes between 3D apps
Opens inBrowsers (three.js, model-viewer), Blender, Unity, Unreal, GodotBlender, Maya, 3ds Max, ZBrush, most slicers

Sources: Wikipedia — Wavefront .obj file · Khronos Group — glTF

No file yet?

Make the model first — from one photo

Every sample in the tool above began as a single picture and was turned into a 3D model in the Kenerate 3D Studio. The engine is named on each one.

Example uses

How creators use the GLB to OBJ converter

Illustrative examples of typical workflows, not customer reviews.

  • Laptop showing a grey vase model in a 3D app

    AI 3D user

    Someone who generated a model as GLB can convert it to OBJ to open it in a tool that only accepts OBJ.

  • CNC carved wooden relief of an oak leaf

    CNC maker

    A CNC or laser user can feed a converted mesh into CAM software and carve it in wood.

  • Monitor showing a helmet mesh half retopologised

    3D artist

    A 3D artist can retopologise or sculpt a web asset after converting it to OBJ.

FAQ

GLB to OBJ Converter questions

Is GLB to OBJ conversion free?

Yes. It runs in your browser with no account.

Link to this answer

Are textures included?

No — the OBJ contains geometry, UVs and normals. Extract the textures from the GLB in Blender if you need them; the UVs will line up.

Link to this answer

Does it handle Draco-compressed GLB?

Yes. Draco and Meshopt are decoded on your device.

Link to this answer

Will animations convert?

No. OBJ can't store animation, so the model is exported in its rest pose.

Link to this answer

Is my file uploaded?

No — conversion happens locally.

Link to this answer

Can I convert OBJ to GLB?

Yes. Open the OBJ in the free 3D model converter and pick GLB as the output. The GLB keeps the mesh and UVs; textures from a separate .mtl aren't included, so re-apply them in your 3D app. Nothing is uploaded.

Link to this answer

Can I convert .gltf?

Use the .glb version; a separate .gltf needs its .bin and textures alongside it.

Link to this answer

In depth

GLB to OBJ Converter, explained

What the formats really store, what changes when you convert, and how to avoid the usual print and import problems.

Two eras of 3D formats

OBJ dates from Wavefront's tools in the 1980s [2]; glTF 2.0 from Khronos in 2017 [4]. Both describe triangle meshes with UVs and normals, but glTF adds PBR materials, scenes and animation in a GPU-ready binary [8].

Keep going

Other 3D viewers and converters

By Last updated and reviewed

We build the Kenerate 3D Studio and these free tools. They run on three.js in your browser, so files stay on your device; every sample model is a real output of the AI engine named on it. Technical facts link to their specs and manuals.

Sources: Wikipedia — STL (file format) · Wikipedia — Wavefront .obj file · Wikipedia — FBX · Khronos Group — glTF · 3MF Consortium — 3MF specification · Wikipedia — Universal Scene Description (USD / USDZ) · Wikipedia — PLY (file format) · Khronos Group — glTF 2.0 specification · Apple — AR Quick Look · three.js — documentation · Prusa Knowledge Base — Modeling with 3D printing in mind · Prusa Blog — lithophanes and filament transparency · Polymers (2024) 16(20):2862 — FFF parameters and translucency of PLA · Wikipedia — Lithophane · W3C — CSS Values and Units Level 3 (absolute lengths) · Adobe Substance 3D — OpenGL vs DirectX normal maps · Blender Manual — Normal Map node · Wikipedia — Normal mapping · SIL Open Font License

Try the GLB to OBJ Converter

Free and private — your files never leave your device. Want to make models with AI? That's the 3D Studio, on any paid plan or credit pack.

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