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AE Keyframe Copy Paste Align Mirror Scale Control Script Aescripts Keystone v2.0.9 + Tutorial

Last updated: Feb 24 2026

AE Keyframe Copy Paste Align Mirror Scale Control Script Aescripts Keystone v2.0.9 + Tutorial

info

Keystone is a powerful script for Adobe After Effects that enables users to perform simultaneous operations on multiple keyframes. This tool is especially useful in motion graphics animation, allowing for efficient keyframe management and editing.

Key Features​

  • Copy and paste keyframes across multiple layers
  • Mirror keyframes for symmetrical animations
  • Align keyframes for precise timing
  • Scale keyframes to adjust animation duration
  • Curve adjustment for fine-tuning animation easing
  • Essential keyframe operations for After Effects workflows

Compatibility​

Supported AE Versions:

  • V2.0.9+V2.0.5+V1.1.6 versions support: 2025, 2024, 2023, 2022, 2021, 2020, CC 2019
  • V1.1.1 version supports: AE 2022, 2021, 2020, CC 2019, CC 2018, CC 2017, CC 2015.3, CC 2015, CC 2014

Installation Instructions​

  1. Follow the documentation installation steps

Troubleshooting​

If the script isn't working:

  • Do not use the Chinese version of AE as expressions may cause errors
  • In Preferences, under Edit—Preferences—General panel, check "Allow Scripts to Write Files and Access Network"
  • Verify that the script supports your AE version (rare issue)

Download | ukm1 | | V2.0.5 | Download | avcs | | V1.1.6 | Download | 1lc4 | | V1.1.1 | Download | mcq3 |

Conclusion​

Keystone is an indispensable tool for motion graphics artists and animators working with complex keyframe animations in After Effects. Its ability to simultaneously manipulate multiple keyframes streamlines the animation process, especially for projects requiring symmetrical movements, precise timing adjustments, or consistent animation scaling. With support for multiple versions of After Effects, this script enhances productivity and creative control in keyframe-based animations.