Mixamo

Adobe’s automated platform for rigging 3D characters and applying professional motion-capture animations in seconds.

Mixamo streamlines the 3D pipeline by eliminating the need for manual skeletal mapping. Users upload custom FBX or OBJ characters, and the Auto-Rigger places markers for joints (knees, elbows, and groin) to generate a fully functional rig instantly. The library provides over 2,400 high-quality motion-capture sequences, ranging from combat maneuvers to cinematic dialogue gestures. It integrates directly with industry standards like Maya, Blender, and Unreal Engine, making it a staple for rapid prototyping and indie game development.

https://www.mixamo.com