Download the zip and do not unpack it. In Blender open Edit > Preferences > Add-ons, click the drop-down arrow in the top-right corner and choose Install from Disk, then pick the zip. Tick the checkbox next to RigStation. Press N in the 3D Viewport and open the Rig Fix tab in the sidebar.

The same steps are in README.txt inside the zip; the full documentation is on the Documentation & FAQ tab of this page.

Blender 4.2 LTS and newer. Tested live on 4.2.9, 5.1.0 and 5.2.0.

Audit This Rig reads the rig and lists findings, each with the bone and what it means; nothing is written. Snapshot The Deform records where every vertex of the evaluated mesh sits across a range of poses. Repair & Prove applies the repair groups you switched on and measures the deformation again, reporting the worst vertex movement in millimetres against your tolerance. Undo These Repairs puts the rig back the way the snapshot found it.

It is the reference the proof is measured against. It is stored inside the .blend file, so it survives saving and reopening: you can repair today and undo tomorrow. Every armature modifier on the mesh is counted, in the order Blender applies them, so a character driven by two armatures is measured as such.

Only if you choose one. The default is Leave names as they are; the other options are Mixamo, Unreal Engine 5, Unity Humanoid, Rigify and a custom mask. When names change, vertex groups, constraint targets, driver variables, keyframes and parents follow.

The add-on also installs the shared Whole Delivery and Sign Off This File panels used across this product line; they appear under Rig Fix. Group Into One Tab moves the panels of every installed add-on from the line into one tab named Proof.

No. The add-on contains no network code. The folder check starts background copies of your own Blender to read your files. Pure Python, no compiled binaries.

Yes. The add-on is licensed under GPL-3.0; the full licence text ships inside the zip. The licence covers the add-on code; what you create with it is yours.