What It Does
After Effects’ built-in mask tracker creates a keyframe on every single frame. Remove Unnecessary Mask Keyframes analyzes those keyframes and deletes the ones that don’t meaningfully change the mask path, leaving you with cleaner timeline data that’s easier to fine-tune.
The script runs two passes on your tracked mask. The removal pass deletes keyframes where no vertex has moved more than your specified threshold compared to the previous frame. The reinforcement pass then checks if any vertex jumps too far between the remaining keyframes. If it does, the script reinserts a previously removed keyframe between them. This process repeats until the mask path stays accurate while using far fewer keyframes.
When it finishes, the percentage of keyframes removed appears in the Info palette.
Who It’s For
Useful for anyone working with mask tracking, especially rotoscoping work where you need to adjust tracked paths. Fewer keyframes make manual corrections faster and reduce project file size.
Pricing
This script uses pay-what-you-want pricing with a suggested minimum of $19.99. Individual users can pay any amount. Businesses and teams must pay the suggested price for a valid license.