Inverse Kinematics in 3D - FABRIK Robot Arm Simulator

3D companion to the 2D inverse kinematics simulator: the same FABRIK algorithm (forward reach to the target, backward re-anchoring of the base) with constant segment lengths, now solving a real 3D chain around a draggable target with reach sphere, tip trail and live error graph.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install