Auto-rigging

Upload a mesh, get a skeleton.

Uthana's auto-rigging places a skeleton on any bipedal humanoid mesh in under 30 seconds — upload a mesh or generate a character and start animating. No rigging expertise required. Once rigged, your character is immediately ready for motion: generate, preview, and download.

Try it free

Upload. Rig. Animate.

1. Upload your mesh

Bring any bipedal humanoid model in GLB or FBX format. Make sure it's in a T-pose or A-pose with feet on the ground. No mesh? Generate one in the webapp.

2. Rigged automatically

Uthana's auto-rigging model analyzes your mesh and generates a skeleton in under 30 seconds. Bones are placed to match the character's anatomy.

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3. Animate immediately

Your character is instantly ready for motion. Generate animation from text, extract from video, browse the library, or take real-time control.

Download the rigged character

Auto-rigging isn't locked to Uthana. Download your rigged character as FBX or GLB and bring the skeleton into Maya, Blender, Unity, Unreal, or wherever your pipeline runs. From there, you can add your own skinning and weight painting, build on the skeleton with custom controls, or use it as a starting point for a more detailed rig.

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  • Download the rigged character as FBX or GLB
  • Skeleton is ready to use in your DCC of choice
  • Use as a fast starting point for production rigs

30 second rigging

Manual rigging means placing joints one by one, adjusting hierarchy, testing deformations, and iterating until it works. Uthana's auto-rigging skips that process entirely. Upload your mesh and the model places a complete bipedal skeleton in under 30 seconds.

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  • Complete skeleton placed in under 30 seconds
  • Works on any bipedal humanoid mesh in GLB or FBX
  • Handles realistic, stylized, and exaggerated proportions

Compatible with all Uthana tools

The moment auto-rigging finishes, your character works with everything in Uthana — text-to-motion, video-to-motion, the motion library, stitching, looping, real-time control, and retargeting. There's no intermediate step between getting a rig and using it. Generate a walk cycle from text and see it on your character within seconds of uploading a mesh.

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  • Apply any motion source immediately after rigging
  • Use real-time control, stitching, looping
  • Retarget existing motions from other characters
FAQ
Frequently asked questions about Uthana auto-rigging
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How fast is auto-rigging?

Under 30 seconds from upload to skeleton. Your character is ready to animate almost immediately.

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What file formats are supported for upload?

GLB and FBX. Your character should be in a T-pose or A-pose with feet planted on the ground for best results.

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What if I don't have a mesh?

Generate a new character with Uthana's character generation tool. Auto-rigging will automatically be applied to any generated mesh.

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What kinds of characters work with auto-rigging?

Any bipedal humanoid mesh — realistic humans, stylized characters, exaggerated proportions, cartoon figures. The model needs to follow a humanoid joint structure (two arms, two legs, a spine, a head). Non-humanoid or quadruped characters are not currently supported.

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Is there a limit on how many characters I can auto-rig?

Yes — auto-rigging uses your plan's character upload allowance. The free plan includes 10 character uploads or auto-rigs per month. Higher tiers go up to 7,500 per month. Check the pricing page for details.

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What if the auto-rig doesn't place bones exactly where I want them?

Download the rigged character and adjust bone positions in your DCC. Auto-rigging is designed to get you a solid starting point fast — for characters that need precise joint placement for a production rig, treat it as a first pass you can refine.

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Is auto-rigging available through the API?

Yes. Character upload and auto-rigging are available via the GraphQL API, which is useful for batch-rigging multiple characters or building auto-rigging into internal studio tools.

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Does auto-rigging work on characters from AI 3D generation tools?

Yes — if the output is a bipedal humanoid mesh in GLB or FBX and can be placed in a T-pose or A-pose, Uthana can auto-rig it. This makes it a natural next step after tools that generate 3D models from text or images but don't include rigging. You can also try the entire character creation process by generating a new character directly within Uthana.

Studio & partner toolchain

Join us in co-developing the future of AI-driven animation.

Style transfers

Apply your game style to generic motions across your team's models.

Integrations

Leverage the Uthana platform in your development pipeline or game environment.

Data siloing

Train bespoke models, or organize and label your data with our ML tools.

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