Auto Rig FBX Online: Unity and Unreal Ready

Upload an FBX model. AutoRig builds the skeleton and skin, retargets animation clips at once and exports an FBX that imports as a humanoid in Unity and a skeletal mesh in Unreal.

Engine Unity and Unreal ready
Target Any pose
Animations Clips for every category
Start FBX Auto Rigging

Unity and Unreal Engine FBX rigging

FBX is the interchange format of game engines and DCC tools. An FBX enters the same V3 conveyor as GLB and OBJ: AutoRig builds the skeleton and skin, retargets the animation clips and opens the result in the viewer. If your FBX already has a skeleton or an animation, its own rest pose is read first. The rigged model exports as FBX, and also as GLB, USDZ, a ZIP, a Unity package and a Blender file.

Engine compatibility:

  • Unity: the FBX imports as a humanoid
  • Unreal Engine: the FBX imports as a skeletal mesh
  • Blender and the web: use the GLB or the Blender file from the same task

FBX rigging features

Humanoid in Unity

A biped exports with a standard humanoid skeleton that Unity understands.

Skeletal mesh in Unreal

The same rig imports into Unreal Engine as a skeletal mesh with its animation clips.

Any pose

No T-pose or A-pose is required. When a biped stands on one leg or steps, the planted leg sets the reference bone lengths.

Textures kept, PBR added

Your materials, textures and UVs are kept. A model without textures gets PBR maps automatically.

Unity vs Unreal Engine rigging

Unity Mecanim

  • Humanoid Avatar system
  • Built-in animation retargeting
  • IK and LookAt constraints
  • State machine animations

Unreal Animation Blueprint

  • Control Rig for advanced IK
  • Animation layers and blending
  • Physics-driven animations
  • Blueprint visual scripting
A horse rig in four views during a gallop clip, coloured by skin weights
A gallop clip on a rigged horse: equines get planted-hoof gaits (walk, trot, gallop).

Ready to Rig Your FBX Character?

Upload your FBX model and get it rigged for Unity or Unreal Engine. Free to try!

Start FBX Auto Rigging