by Lloyd Alvarez·Workflow
Images © Lloyd Alvarez. Used for product review; image policy.
Duplicate Frame Remo earns its place in the aescripts library for pairing frame detection with a keyframable Region of Interest and optional retiming through After Effects' own Pixel Motion and Frame Mix tools.
Duplicate Frame Remo is an After Effects script from Lloyd Alvarez that removes duplicate frames in footage. A keyframable Region of Interest feature lets you direct where the detection should occur.
You can optionally retime the footage back to its original length using After Effects' built-in retiming tools, Pixel Motion and Frame Mix, and processing is 50% faster.
Version 3.4 introduces a 'No retime just set keys' option, which sets time-remapping keys at all the good frames without retiming them — useful when you just need to find and mark the good frames. The script supports a wide range of releases, from CC 2015 through After Effects 2026, and was last updated in May 2026. A demo video is available on the developer's page.
Duplicate Frame Remo is best for after Effects users cleaning up footage that contains duplicate frames, with the option to retime it back to its original length.
Duplicate Frame Remo is completely free to download and use.
Duplicate Frame Remo supports a broad span of After Effects releases, including 2026, 2025, 2024, 2023, 2022, 2021 and 2020, along with the older CC line: CC 2019, CC 2018, CC 2017, CC 2015.3 and CC 2015. That range means it can fit into both current projects and setups still running legacy versions. If you're on the latest After Effects 2026 build, the script is listed as compatible, and its most recent update landed in May 2026.
Duplicate Frame Remo can optionally retime footage back to its original length after duplicate frames are removed. It handles this through After Effects' built-in retiming tools, specifically Pixel Motion and Frame Mix. Retiming is offered as an option rather than a required step, so you can remove duplicates and then decide whether to restore the clip's original length or leave it as is. That keeps the frame-removal and retiming stages independent within your workflow.
Duplicate Frame Remo added a 'No retime just set keys' option in version 3.4, released in May 2026. Rather than retiming the footage, this option sets time-remapping keys at all the good frames while leaving the timing untouched. It's meant for situations where you just need to find and mark the good frames instead of rebuilding the clip's length, so the detection results are placed as keyframes you can work with.
Duplicate Frame Remo is listed as free here. Licensing terms can change over time, so for the current details it's best to check the developer's page directly. The script comes from Lloyd Alvarez and is distributed through aescripts, where you'll also find the download along with documentation covering the supported After Effects versions. Checking there is the most reliable way to confirm the current terms before you rely on them.
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