The most well-known version of this tool is developed by BatchFrame and available via aescripts + aeplugins .
Select your pre-comp layer in the timeline, click the script panel button, and watch your layers instantly extract back to the main timeline. How to Un-Precompose Manually (No Downloads Required) Un Precompose After Effects Plugin Free Download
Un-Precompose After Effects Plugin Free Download: The Ultimate Guide to Reversing Pre-comps The most well-known version of this tool is
Navigate to File > Scripts > UnPrecompose.jsx . keyframes – all intact.
Boom. Every layer from inside the precomp is now sitting happily in your main timeline at the exact frame and position where they belong. Effects, masks, keyframes – all intact.
Strictly speaking, Un-Precompose functions as an After Effects script rather than a plugin. While plugins alter visual pixels, scripts automate repetitive user interface actions.
This report highlights why a perfect "Free Un Precompose" tool is difficult to find. The operation is not a simple reversal due to After Effects' rendering architecture.