Auto trim layer, Aftereffects Script

Trim Smarter. Work Faster. Stay Clean

Auto Trim Layer is an intelligent After Effects script that trims layers based on the one above—automatically removing overlaps, cleaning up timelines, and skipping locked layers to protect your edits. Designed to boost performance and streamline your workflow.

Auto Trim Layer – After Effects Script is a powerful automation tool built for motion designers, video editors, and VFX professionals looking to optimize their timelines and speed up their workflow in Adobe After Effects. This script automatically trims the in and out points of selected layers to match the boundaries of the layer stacked directly above—eliminating unnecessary overlaps, saving time, and maintaining visual clarity in your timeline.

Right side is the overlaping layer that taking much background resources, and left is the trimmed version, clean and faster edit

Whether you're working on dense compositions, animating sequences, or managing a complex VFX project, Auto Trim Layer intelligently identifies where a layer should end or begin, and trims it accordingly. Best of all, it respects your locked layers—ensuring that key adjustments or protected edits remain untouched.

By reducing timeline clutter and trimming away unused frames, the script also helps After Effects run smoother and more efficiently—saving memory and processing power for what really matters: your creative work.

✨ Key Features:

• ⚙️ Automatic Layer Trimming – Aligns selected layers with the in/out points of the layer above to prevent overlap
• 🧠 Smart Locked Layer Detection – Ignores locked layers to preserve essential edits and settings
• 🧹 Clean & Organized Timelines – Remove clutter and make complex projects easier to navigate
• 🚀 Performance Boost – Reduces unnecessary frames and memory usage, helping After Effects run faster
• 🕒 Time-Saving Workflow – Automate repetitive trimming tasks and stay focused on creativity
• 🎯 Precision Editing – Perfect for montages, transitions, VFX stacks, and animation sequences
• 🖱️ One-Click Simplicity – Lightweight, user-friendly, and ready to go right out of the box