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FBX to STL converter

Drop your .fbx file — we convert it to .stl right in your browser. Files never leave your computer.

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Drop your FBX file here
Accepts .fbx · converts to .stl

FBX vs STL— what's the difference?

FBX.fbx

Autodesk's proprietary interchange format — the de-facto standard for moving rigged, animated characters between Maya, Max, Blender, Unity, and Unreal.

Strengths
  • Carries skeletal animation, blend shapes, cameras, lights
  • Supported by every major DCC and game engine
  • Binary or ASCII flavours
Limitations
  • Closed, Autodesk-controlled spec — SDK-only for authoritative reads
  • No universal web viewer — typically converted to GLB for the browser
Typical use: Character animation handoff, game engine import, DCC transfer
STL.stl

Triangle-mesh format that every 3D printer slicer understands. Geometry only — no units, colours, or assemblies.

Strengths
  • Universal 3D printing format — Cura, PrusaSlicer, Bambu Studio all speak STL
  • Tiny, simple, extremely fast to load
  • Great for meshing workflows, simulation pre-processors, quick previews
Limitations
  • Triangulated approximation — curved surfaces lose precision
  • No colour, material, or assembly data
  • One shell per file by convention (multi-body gets flattened)
Typical use: 3D printing, rapid prototyping, mesh-based workflows

How to convert FBX to STL

  1. 1
    Drop a .fbx file on the page — binary or ASCII FBX both work. Everything runs locally.
  2. 2
    Preview the geometry in 3D. If the model has multiple parts, the Scene Tree on the left lets you toggle which ones go into the STL.
  3. 3
    Click Download .STL to save a binary STL. Open in Cura, PrusaSlicer, or Bambu Studio and print.

FAQ

Does the animation / rig survive?

No — STL is geometry only. The mesh is frozen in its bind pose at export. If the FBX has multiple animated frames, only the current pose is captured. Bake animation in your DCC first if you need a specific frame.

Will materials and textures be preserved?

No, STL has no material or texture data. If you need colour-capable 3D printing (Bambu AMS, Polyjet), export to 3MF or GLB instead.

Is the mesh watertight for printing?

STL itself doesn't care, but slicers do. If the FBX mesh has holes or flipped normals your slicer will complain. Check in Blender → Mesh → Clean Up → Merge by Distance before printing.

What about scale?

FBX unit metadata is respected when present. If the model comes out at 1mm instead of 10cm, check the FBX Units setting in the source DCC — Maya and 3ds Max default differently.

Is my FBX uploaded?

No. Everything runs in-browser via Three.js' FBXLoader and STLExporter.

Related converters

FBX → GLBFBX → OBJOBJ → STLSTEP → STL