Motion Specs,
Reimagined.

Bridge the gap between Design and Engineering. Export precise specifictions from After Effects keyframes in milliseconds.

Get the Plugin Learn More
// Selected Keyframes Output
Layer: Button_bg
Property: Scale
100 → 120% (+20%)
Duration: 300ms
Ease: cubic-bezier(0.25, 0.1, 0.25, 1.0)

Why LeeSin Motion?

✂️

Extract: Segment

Analyze easing and value changes between two keyframes for precise handoff.

📍

Extract: Single Key

Capture exact absolute time points of specific keyframes in your timeline.

🔍

Scan: Current Layer

Bulk export every animation property and keyframe pair for an entire layer.

🎬

Scan: Pre-comp

Generate a full animation script ordered by element appearance time.

Seamless Workflow

  • 01

    Select Keyframes

    Highlight the start and end keyframes of any animation in your timeline.

  • 02

    Click to Capture

    Hit the "Get Specs" button. LeeSinMotion parses the data instantly.

  • 03

    Share with Eng

    Paste the generated specs directly into Jira, Notion, or your handoff documentation.

Installation Guide

macOS

Copy LeeSinMotion.jsx to the AE ScriptUI Panels directory:

/应用程序/Adobe After Effects CC 2025/Scripts/Script UI Panels
⊞

Windows

Copy LeeSinMotion.jsx to the AE ScriptUI Panels directory:

...Adobe After Effects CC 2025\Support Files\Scripts\ScriptUI Panels