Auto-Rig Pro
5.8#22 in 3d rigging software$50 one-timeLinuxmacOSWindows
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It suits Blender users creating character rigs for game engines, especially those who need FBX or GLTF export. Users wanting automatic keypoint estimates should note that the AI tools are optional and their files are platform-specific.
Rigify suits Blender users who want to generate character rigs from metarigs and customize the result. Its listed metarigs and rig components cover human, animal, and character anatomy needs.