Cascadeur is a standalone software for 3D keyframe animation of humanoid or other characters. It offers a wide range of tools such as Quick Rigging, AutoPhysics, Trajectories, Ghosts, Copy Tool, Tween Machine, IK/FK Interpolation, Graph Editor, and Video Reference Import, as well as AI-assisted tools for posing and secondary motion. Cascadeur works with .FBX and .DAE files, making it compatible with Unreal, Unity, Daz3d, 3ds Max, Maya, Mixamo, Blender, Houdini, and Cinema 4d. The website provides tutorials, video lessons, documentation, articles, and a forum and Discord for the community.