Swingy Bone Physics is an add-on that provides a bone chain physics solver within Blender. It enables the creation of physically based animations for rigged elements like hair, cloth, wires, and character accessories. Users can generate simulated bone chains and attach collision volumes directly to bones to handle interactions.

The tool includes features for adding multiple colliders simultaneously and adjusting physics parameters across multiple selected bones. It offers amplitude constraint profiles to limit bone rotation, integrated wind simulation, and support for keyframing solver parameters. Animations generated by the system can be baked down into standard keyframes. Additional tools include a curve editor for fine-tuning physics properties and customizable visual helper overlays in the 3D viewport.