Drivers Symmetrizer Pro is an add-on that automates the process of duplicating bone drivers from one side of a character rig to the other. Rather than manually recreating formulas and curves for a symmetrical rig, users can select the source bones in Pose Mode and copy their setup to the corresponding target bones with a single context menu command.

The tool transfers mathematical expressions alongside F-curves, custom keyframes, and F-curve modifiers like noise or limits. It includes an inversion feature to address flipped rotation axes on mirrored bones, automatically adjusting the math and flipping the curves. Users can explicitly filter which transform channels or types of constraints are copied, including support for mirroring drivers inside IK and action constraints.