Unreal Engine 3D file formats: what opens and how
Unreal Engine 5 is Epic Games' real-time engine for games, film and visualisation, and it imports models through the Content Browser. It opens 4 of the 9 common 3D formats below without conversion; for the rest, convert to GLB first.
Format support at a glance
| Format | Support | How |
|---|---|---|
| GLB | Built in | Content Browser › Import (recent UE 5 versions read glTF through the Interchange framework; older ones need the glTF Importer plugin) |
| glTF | Built in | Content Browser › Import (Interchange framework, or the glTF Importer plugin on older versions) |
| OBJ | Built in | Content Browser › Import |
| STL | Convert first | Convert to GLB |
| FBX | Built in | Content Browser › Import (or drag the .fbx onto the Content Browser) |
| PLY | Convert first | Convert to GLB |
| 3MF | Convert first | Convert to GLB |
| DAE | Convert first | Convert to GLB |
| USDZ | With add-on | enable the USD Importer plugin (Edit › Plugins), restart, then open the file with the USD Stage editor or import it |
Which format to choose
GLB and FBX are the most dependable choice for Unreal Engine. PBR materials map onto Unreal material instances. If a model arrives as STL, PLY, 3MF, convert it to GLB so materials survive the trip.
Units and orientation
Unreal Engine works in centimetres and is Z-up. Most problems after an import, such as a model that is invisible, enormous or lying on its side, come from a mismatch with the exporting app rather than a broken file.
- Unreal works in centimetres. A model built in metres looks 100 times too small; tick Convert Scene Unit or set Import Uniform Scale to 100.
- Import into a dedicated folder in the Content Browser, because every material and texture becomes its own asset.
Questions
- What 3D formats can Unreal Engine open?
- Without conversion: GLB, glTF, OBJ, FBX. With an add-on: USDZ.
- How do I get an unsupported format into Unreal Engine?
- Convert it to GLB with one of our in-browser converters, then import the GLB. In Unreal Engine: Content Browser › Import (recent UE 5 versions read glTF through the Interchange framework; older ones need the glTF Importer plugin).
- Does Unreal Engine keep textures and animation?
- Yes, when the format carries them. GLB and FBX keep the most; STL and PLY carry no textures.
Source: the official Unreal Engine documentation. Menu names can move between versions.
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.