Guides
FBX vs OBJ vs GLB for Roblox: which file format should you use?
Which 3D file format to import into Roblox Studio: GLB for textured props, FBX for rigs and animation, OBJ for plain geometry. What each one carries.
2 min read
Quick answer
Which 3D file format is best for Roblox?
For a static textured prop, use .glb. It's one file with textures inside, supports PBR, and avoids the scale problems Blender's FBX export causes. Use .fbx for rigged or animated models, where it's the most proven route into Studio. Use .obj only for simple untextured geometry, then assign a texture in Studio.
The short answer
- Static prop with textures → .glb
- Rigged character, animation, avatar item → .fbx
- Plain geometry, no textures → .obj
What each format carries into Studio
Roblox's Importer accepts .fbx, .obj and .gltf, and lists the extra features for .fbx and .gltf: multiple mesh objects and hierarchies, basic and PBR textures, cage meshes, rigs, avatar components, animation data and vertex colours.
GLB / glTF
glTF is the open standard from the Khronos Group, and .glb is its single-file binary form. Roblox first added glTF import as a beta in 2023, and it now supports the same feature list as FBX. For Roblox, its two practical advantages are:
- textures are embedded in a .glb, so there are no missing-texture paths;
- no FBX scale settings. Roblox's Blender guide notes that glTF doesn't need the extra scaling configuration FBX does.
Watch for one difference: glTF imports with an extra Model level and one MeshPart per primitive (how to import 3D models into Roblox Studio). More on the two flavours in GLB vs glTF.
FBX
FBX is the long-standing default for Roblox avatars and animation. Roblox's export settings recommend it for anything rigged or skinned. The common catch is that Blender's default FBX export often arrives much too large in Studio. Fix it with Apply Scalings ⟩ FBX Unit Scale (studs to metres). For textures, set Path Mode ⟩ Copy and turn on Embed Textures.
OBJ
OBJ is old, simple and nearly universal. It stores geometry and UVs, but no rigs, animation or hierarchy. Studio's Export Selection writes OBJ, so it's also what you'll get when you take a Studio build into Blender. For import, expect to set the texture yourself through TextureID or a SurfaceAppearance.
Converting between them
Blender opens and exports all three, and the glTF vs FBX glossary entry covers the general differences. When converting, re-check scale, the up-axis and that textures are still attached. The Blender to Roblox Studio guide has exact export settings.
Get the format you need from the start
Vi3W exports every model as GLB, FBX or OBJ, so you choose at download: GLB for props headed straight to Studio, FBX if you'll rig in Blender first. Generate a model and pick your format.
Frequently asked questions
Difference between .FBX and .OBJ
FBX carries much more: multiple objects and their hierarchy, textures, rigs, skinning, animation and cage meshes for layered clothing. OBJ is geometry, plus UVs, and that's essentially it. In Roblox that means an FBX keeps separately modelled pieces as separate MeshParts, while for OBJ you assign the texture yourself after import. glTF/GLB now covers everything FBX does in Studio's Importer and packs textures into the file.
Import meshes as .obj or .fbx?
In 2019 the answer was OBJ for simple meshes and FBX for anything else. In 2026, add glTF: for static textured props, .glb is usually the least trouble. Use FBX when you have a rig or animation, and keep OBJ for plain geometry.
Last reviewed