Rig-GNS is a versatile Blender addon for Rigging, Retargeting and Animation based on Rigify.
You can think of Rig-GNS as an user-friendly UI for Rigify.
Rigify is a powerful auto-rigging addon. However, it is not very intuitive. Rig-GNS improves your Rigify experience by providing many quality-of-life features and automations.
With this addon you can quickly rig humanoid characters with a Mixamo-like workflow: just place a couple of markers, and the addon does the rest. That also applies to face rigging!
Additionally, Rig-GNS offers an easy retargeting workflow. You only need to select a mocap file from Mixamo, Rokoko, QuickMagic, and more. The addon will then correctly retarget the motion to your character.
Features for cleaning up and tweaking the retargeted motion are also available.
Download
Check out the full list of features on the product page:
Tutorials
The official YouTube channel of the addon developer offers extensive tutorials: