About Elastic Comp Changer

Elastic Comp Changer is a script for After Effects that modifies the duration of a composition along with its layers and any nested pre‑compositions. Users add or remove frames via dedicated + and – buttons, and an Options window provides finer control. The script can offset all keyframes, layer markers and comp markers that occur after the playhead, and it works on both unlocked and locked layers. When the keyframe offset option is enabled, keyframes in inactive layers are also shifted. Layer start times can be changed after the playhead, and In/Out points can be moved while preserving those start times. Version 2.0.2 (October 2025) refines handling of nested locked pre‑comps when the Locked Layers option is off. The script is compatible with After Effects 2026, 2025, 2024, 2023 and 2022.

Features

• Add or remove frames from the composition’s current duration using dedicated + and – buttons
• Offset all keyframes placed after the playhead
• Offset layer markers and comp markers positioned after the playhead
• Apply changes to both unlocked and locked layers, and offset keyframes in inactive layers when the keyframe offset option is enabled
• Modify layer start times after the playhead
• Move In/Out points while preserving layer start times
• Options window for adjusting the settings

Best for

After Effects users who need to retime compositions while keeping keyframes, markers, layers and nested pre‑comps synchronized.