Free GLB to GLTF Converter

Lightning-fast GLB to GLTF conversion — 100% in your browser. Your files never leave your device. Free, no watermark, no sign-up.

Upload 3D Model

Drag and drop or click to upload. Files are processed locally in your browser.

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Supports GLB, GLTF, OBJ, STL, FBX, PLY

GLBGLTFOBJSTLFBXPLY

3D Preview

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Fast3D AI

No GLB file? Generate one with AI.

Skip the search — generate a model from text or an image, then convert it to GLB or any other format in one workflow.

Generate → convert — all on fast3d.org.

GLB vs GLTF

See what transfers when converting between these two formats.

FeatureGLBGLTF
Geometry
Textures
Materials
Animation
Rigging

All features supported by GLB are preserved in GLTF.

GLBGLTF

Frequently Asked Questions