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FBX file format (.fbx)

Autodesk FBX

What is a FBX file?

FBX is Autodesk’s proprietary scene format and the long-time workhorse of game development and animation pipelines. It carries meshes, rigs, skinning, animation takes and materials between tools like Maya, 3ds Max, Blender, Unity and Unreal.

  • Rich animation, rigging and skinning data
  • Deep integration with game engines and DCC tools
  • De-facto standard in game asset pipelines

Best for: Game development and character animation exchange.

View FBX files online

Open .fbx files in the free online FBX viewer — assembly tree, section views and display modes, entirely in your browser.

How to open a FBX file

  1. Open the online FBX viewer. It runs in your browser, so there is no software to install and no account to create.
  2. Drop your .fbx file in. The file is parsed locally and never uploaded. Inspect it with the assembly tree, section views and display modes.
  3. Convert it if you need another format. Press Convert to turn FBX into STL, then download the result straight from your browser.

Convert FBX to other formats

FBX to STLFBX to OBJFBX to PLYFBX to GLBFBX to glTFFBX to 3MFFBX to OFFFBX to USDZ

Frequently asked questions

How do I open a .fbx file?

Drop it into the free online FBX viewer on this site — it renders in your browser with an assembly tree and section views, and the file is never uploaded. No software install needed.

Does FBX store units and colors?

Units: yes. Colors/materials: materials & textures. Geometry is stored as polygon mesh scenes.

How do I convert FBX to STL?

Use the free FBX to STL converter: drop the file, press Convert, download. Everything runs locally in your browser — no upload, no signup.

What is FBX best used for?

Game development and character animation exchange.

Is FBX a good format for exact engineering geometry?

No. FBX is a polygon scene format built for content, game and animation pipelines. CAD surfaces are tessellated before they enter it, so exact dimensions and design intent are not retained as analytic geometry.

Can FBX store animation?

Yes — rigs & takes. The conversion pipeline on this site handles static geometry, hierarchy and flat colors only, so it does not write or display animation tracks.