Isaac-Burke

Momentum is a Blender addon by Isaac-Burke that adds configurable follow-through to animations. It works exclusively on keyframes, with no viewport simulation and no bake required, applying overshoots directly in the graph editor.

Instant Physics is a lightweight animation add-on for Blender that adds artist-driven secondary motion to existing animation. Using one or two controls, a location or rotation offset, it inherits and amplifies your base motion.