FBX to OBJ Converter

Move FBX models into tools that read OBJ: every mesh as its own object, materials and textures in an .mtl, in one .zip.

  • Files stay on your device
  • Free, no sign-up
  • Units and up axis handled
  • Batch and .zip

Drop an FBX file to convert

One file, many, or a .zip

In: STL · STEP · IGES · OBJ · 3MF · GLB · glTF · PLY · FBX · DAE · 3DS · AMF · VRML · ZIP

Converted on your device. Nothing is uploaded.

    How to convert FBX to OBJ

    1. Drop your FBX files

      Drop .fbx files (FBX 7.0 or newer, binary or ASCII) with any separate textures.

    2. Check the preview

      The model appears at the size and orientation it will have. Fix the file units, up axis or size under Size, units and orientation if needed.

    3. Choose OBJ options

      Keep materials on to get a .zip with the .obj, its .mtl and textures. Pick the up axis: Y for Blender and game engines, Z for slicers and CAD.

    4. Convert and download

      One file downloads straight away. A batch gives a download per file and one .zip of all of them.

    What carries over from FBX to OBJ

    Worked out from what each format can store and what this converter writes. Nothing is changed silently: the preview shows the size and orientation before you download.

    Geometry Every face is kept; quads and n-gons are split into triangles.
    Color Kept: material colors and textures go in a .mtl with PNG textures (you get a .zip); vertex colors are written into the OBJ.
    Units OBJ stores no units. The numbers stay in the unit the FBX was read in (millimetres); you can change that in the options.
    Orientation Kept the way the FBX had it. Switch to Y up (Blender, game engines) or Z up (slicers, CAD) in the options.
    Objects Each part stays a separate object or mesh.
    Animation Dropped: the model is written in its rest pose.

    FBX to OBJ: what actually happens

    OBJ is the simplest format nearly every 3D tool reads. FBX to OBJ writes each FBX mesh as an OBJ object, with its material colors and textures (embedded or dropped alongside) saved to an .mtl and PNG files. Skeletons and animation are dropped; the meshes come out in their bind pose.

    FBX units (usually centimetres) are converted to millimetres in the OBJ by default; set the output unit if your next tool expects metres. Y up is kept.

    FBX at a glance

    Autodesk Filmbox · .fbx

    Stores
    Meshes, materials, textures, skeletons, animation, cameras
    Color
    Materials and textures, embedded or as separate files
    Units
    Declared as a scale factor, centimetres by default
    Up axis
    Usually Y
    File size
    Binary, large when textures are embedded
    Opens in
    Maya, 3ds Max, Blender, Unity, Unreal, Mixamo

    FBX began as Kaydara's FiLMBOX and has been owned by Autodesk since 2006. It is the standard for moving rigged, animated characters between DCC tools and game engines; the format is proprietary, so most tools read it through Autodesk's SDK or reverse-engineered readers.

    Open FBX files in the viewer

    OBJ at a glance

    Wavefront OBJ · .obj

    Stores
    Vertices, faces (triangles, quads, n-gons), UVs and normals as text
    Color
    Materials and textures in a separate .mtl file; vertex colors as an unofficial extension
    Units
    None, the numbers are bare
    Up axis
    Y by convention (Blender, Maya, most 3D apps)
    File size
    Text: about a binary STL's size for bare geometry, up to twice that with UVs and normals
    Opens in
    Blender, Maya, 3ds Max, ZBrush, Cinema 4D, game engines, most slicers

    OBJ came out of Wavefront Technologies' animation software and became the plain-text lingua franca of 3D. The geometry is in the .obj; colors and texture references live in a companion .mtl file, which is why OBJs so often arrive grey.

    Open OBJ files in the viewer

    Tips for FBX to OBJ

    Textures

    Drop the texture images with the FBX if they aren't embedded.

    Blender users

    Blender imports FBX directly; OBJ is useful for tools that don't.

    Printing

    Going to a slicer? FBX to STL is simpler.

    FBX to OBJ FAQ

    Does FBX to OBJ keep textures?
    Yes. Textures are written as PNG and referenced from the .mtl, in one .zip.

    Are animations kept?
    No. OBJ has no animation; meshes are written in the bind pose.

    What units is the OBJ in?
    The unit the FBX was read in, converted from its declared scale. Change it in the options if needed.

    Is the converter free? Are there limits?
    Free, with no sign-up, watermark or file count limit. Batches and files of a few hundred MB work on most laptops; the only limit is your device's memory.

    Are my files uploaded?
    No. Files are read and written by JavaScript and WebAssembly in your browser and never sent to PrintPal. The STEP and IGES reader is the only extra download, once, from a public CDN.