The plugin for Adobe After Effects is a highly regarded utility that reverses the standard "Pre-compose" action by extracting all layers from a nested composition back into the parent composition. Core Features & Benefits
If a precomp has "Collapse Transformations" enabled, the boundaries of that composition are ignored. If you "Un Precompose" such a layer, the plugin must mathematically recalculate the position of every layer to simulate the collapsed state within the main comp coordinates. Most free tools fail at this step, resulting in layers shifting position visually.
Fortunately, you can automate this entire process using a free "Un-Precompose" script. Here is everything you need to know about how the tool works, where to download it for free, and how to use it to save hours of editing time. What is an Un-Precompose Plugin? Un Precompose After Effects Plugin Free Download
Paul Conigliaro (creator of "Flow" and "Overlord") once hosted a free script called "Un-Precompose." Visit his archive or GitHub.
A more powerful and modern alternative developed by a user who was frustrated with the limitations of existing free scripts. It focuses on proper preservation of effects, masks, blending modes, 3D properties, time remap, track mattes, and audio with level keyframes. Its standout feature is a Smart Expression Fixer that automatically rewrites thisComp.layer() references that normally break after un-nesting. The plugin for Adobe After Effects is a
But then comes the inevitable headache: you need to move those layers back into your main timeline. Manually copying, pasting, and re-aligning layers while trying to maintain keyframes and expressions is a workflow killer.
That's where comes in. It's a powerful, free (or pay-what-you-want) utility that reverses the pre-compose action, pulling all layers back to the parent timeline while keeping all effects, keyframes, and expressions intact. This article provides a complete guide to the plugin: what it does, where to find it, how to install and use it, what you should know before downloading, and a few alternatives to consider. Most free tools fail at this step, resulting
Enter the hero of the motion design underworld: .
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?