Smart Key Reverse 2 flips complex animation in After Effects with a single click. The panel offers different types of reverse, including Reverse at Time, Reverse with Work Area, and Reverse from In point to Out point, and it can reverse all properties or only the ones you specify. A built-in keyframe counter keeps track as you work.
The tool ships with a compact, intuitive design and flexible settings. It includes full support for the Kbar2 extension and keyboard shortcuts. Compatibility spans a wide range of After Effects versions, from CS6 through CC and the 2019, 2020, and 2021 releases.
Sitting at rank 610 in the aescripts library, Smart Key Reverse 2 earns its place as a focused keyframe reversal utility for After Effects animators. It is listed here as free; check the developer's page for current licensing. A demo video is available.