Duplicate Frame Remo is a free After Effects script that detects and removes duplicate frames, offering a keyframable Region of Interest and optional retiming with Pixel Motion or Frame Mix. Version 3.4 adds a “No retime just set keys” mode for marking good frames.
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Developed by Lloyd Alvarez.

About Duplicate Frame Remo
Duplicate Frame Remo, created by Lloyd Alvarez, is a script for Adobe After Effects that scans footage for duplicate frames and removes them. Users can define the detection area with a keyframable Region of Interest. After removal, the script can optionally retime the clip back to its original duration using After Effects’ built-in Pixel Motion or Frame Mix tools, with processing up to 50% faster than prior versions. Version 3.4 introduces a “No retime just set keys” option, which places time‑remapping keys on all retained frames without altering clip timing, useful for marking good frames only. The script supports After Effects releases from CC 2015 through the 2026 version and was last updated in May 2026. A demo video is provided on the developer’s page.
Features
- Removes duplicate frames in footage
- Keyframable Region of Interest feature to direct where the detection should occur
- Optional retiming of footage back to its original length using After Effects’ built-in Pixel Motion and Frame Mix tools
- 50% faster processing
- ‘No retime just set keys’ option that sets time-remapping keys at all the good frames without retiming them (added in version 3.4)
- Compatible with After Effects from CC 2015 through 2026
Best for
After Effects users who need to clean up footage containing duplicate frames and may want to retime the cleaned clip back to its original length or simply mark the retained frames.
Frequently asked questions
Does Duplicate Frame Remo work with After Effects 2026?
Yes. Duplicate Frame Remo is listed as compatible with After Effects 2026, as well as versions back to CC 2015.
What retiming tools does Duplicate Frame Remo use?
The script can use After Effects’ built‑in Pixel Motion and Frame Mix tools to optionally retime footage after duplicate frames are removed.
What does the ‘No retime just set keys’ option in Duplicate Frame Remo do?
The “No retime just set keys” option adds time‑remapping keys at each retained (good) frame without changing the clip’s timing, allowing users to mark frames without rebuilding the clip length.
Is Duplicate Frame Remo free?
The catalog lists Duplicate Frame Remo as free, but licensing terms may change, so checking the developer’s page for the current status is recommended.
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