Convert GLTF to GLB Online — Free
Upload a GL Transmission Format file and download it as GL Binary. Runs entirely in your browser — no server uploads.
About These Formats
GL Transmission Format
GLTF is the Khronos open standard for 3D assets — a JSON-based format that describes scenes, meshes, materials, animations, and cameras with external texture files.
Used with
WebGL applications, game engines, AR/VR platforms, and cross-tool 3D workflows.
GL Binary
GLB is the binary form of the GLTF format — a compact, web-optimized container that bundles geometry, textures, and animations into a single file.
Used with
Three.js, Babylon.js, React Three Fiber, Unity, Unreal Engine, Blender, AR/VR applications.
When to Convert GLTF to GLB
Convert GLTF to GLB when you need a web-ready, self-contained 3D asset. GLB is the preferred format for Three.js, React Three Fiber, Babylon.js, and Needle Engine. It bundles geometry, textures, and animations into a single binary file, making it ideal for fast web loading and AR/VR applications.
Other GLTF Conversions
Frequently Asked Questions
How do I convert GLTF to GLB?
Upload your .gltf file using the tool above, confirm the source format is set to GLTF and the target is GLB, then click Convert. The file processes in your browser and you can download it immediately.
Does converting GLTF to GLB preserve textures?
Yes. Converting to GLB preserves PBR materials and embedded textures from the source file.
Is this converter free?
Yes, completely free. No account, no usage limits, no hidden fees.
Are my files uploaded to a server?
No. All processing happens locally in your browser using WebGL. Your files never leave your device.