About KeyTweak

KeyTweak speeds up editing of keyframe‑heavy animations in After Effects. When a mask contains dozens or hundreds of keyframes, you can change one or two keyframes and the plugin propagates the changes to the rest, eliminating manual edits. It includes a local mode for 2D properties such as corner pin points and saves its mode setting in After Effects preferences, restoring it on launch. If applied to a mask whose vertex count changes, the plugin displays a clear error message. Version 2.5.002 (released February 2021) adds stability fixes for local mode. Compatibility spans After Effects CS3 through the 2026 release, covering both legacy and current projects.

Features

• Adjust one or two keyframes and let the remaining keyframes update automatically
• Works on masks built from many keyframes
• Local mode for 2d properties such as corner pin points
• Mode setting saved in the After Effects preferences and restored on next launch
• Clear error message when applied to a mask with a changing vertex count
• Compatible with After Effects from CS3 through 2026

Best for

After Effects artists who need to correct mask or corner‑pin animations with many keyframes without editing each keyframe individually.