How to Import GLB into Unity (Add-on Guide)
Unity is a widely used game engine for mobile, desktop, console and XR games, and it imports models by copying them into the project's Assets folder.
Short answer · With add-on
Yes, with an add-on. Install the glTFast package (com.unity.cloud.gltfast) with Window › Package Manager, then drag the .glb into Assets.
Import GLB into Unity, step by step
- 1Check the fileA GLB is self-contained: geometry, materials and textures are inside the one file, so there is nothing else to copy.
- 2Import into UnityInstall the glTFast package (com.unity.cloud.gltfast) with Window › Package Manager, then drag the .glb into Assets.
- 3Check scale and orientationUnity works in metres and is Y-up. GLB files are metres by convention, so they normally arrive at the right size.
- 4Check materials and animationGLB carries PBR materials and embedded textures and can carry animation. Look at the model under a neutral light before you build on it.
What comes through
| Shape | Yes, always. |
| Colours and materials | Yes: PBR materials and embedded textures. |
| Textures | Yes. |
| Animation | Yes, if the file has any. |
Things to watch for
- With glTFast installed, GLB files import as prefabs with their PBR materials.
- Select the imported model and check Scale Factor and Convert Units in the Model tab of the Inspector before placing it in a scene.
Questions
- Does Unity support GLB files?
- Yes, with an add-on. Install the glTFast package (com.unity.cloud.gltfast) with Window › Package Manager, then drag the .glb into Assets.
- Why is my GLB model the wrong size in Unity?
- GLB files are metres by convention, while Unity works in metres. Select the imported model and check Scale Factor and Convert Units in the Model tab of the Inspector before placing it in a scene.
- What is the best 3D format for Unity?
- FBX and OBJ are the most reliable choice for Unity. If you have a choice when exporting, pick FBX over GLB.
Menu names follow Unity Technologies's current release. Check the official Unity documentation if your version differs.
Written with AI assistance by the Renderlyst team in October 2026. Format support reflects each app's current release as we understand it, and we link the official documentation so you can confirm it for your version. Spotted something out of date? Email alishbakhalid766@gmail.com.