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Surprisingly, despite being decades old, After Effects does not have a built-in "Un-precompose" button. Adobe’s logic is that pre-composing is a structural choice, and reversing it involves complex decisions about how to handle effects, masks, and blending modes that were applied to the pre-comp layer itself. The Best Free Solution: Un-Precompose by Batchframe

Manually adjust the "In" and "Out" points to match the previous pre-comp container. Re-link any expressions that broke during the move.

Are you experiencing a with an existing plugin?

Don't let the lack of a native undo button slow down your motion design workflow. Downloading the free Un-Precompose script turns a frustrating, multi-step chore into a seamless, single-click task. Add this utility to your ScriptUI folder today to keep your timelines clean, flexible, and fully editable. If you want to optimize your setup further, let me know: What are you currently running?

It does a better job of calculating the "collapsed transformations" so your layers don't jump across the screen when extracted. How to "Un-Precompose" Manually (No Plugin Required)

The most well-known version of this tool is developed by BatchFrame and available via aescripts + aeplugins .

Move the downloaded .jsx or .jsxbin file into the Scripts > ScriptUI Panels folder.

: It preserves layer effects, expressions, and timing during the extraction.