Easy Time Remap

After Effects

April 4, 2025

(function() {
// Ensure there is an active composition
var comp = app.project.activeItem;
if (!comp || !(comp instanceof CompItem)) {
alert("No active composition.");
return;
}

// Ensure there is a selected layer
var layer = comp.selectedLayers[0];
if (!layer) {
alert("No layer selected.");
return;
}

// Enable time remapping
if (!layer.canSetTimeRemapEnabled) {
alert("Layer cannot have time remapping applied.");
return;
}
layer.timeRemapEnabled = true;

// Add a keyframe at the start and end of the layer
var startTime = layer.inPoint;
var endTime = layer.outPoint;

layer.timeRemap.addKey(startTime);
layer.timeRemap.addKey(endTime);

// Select keyframe at the end of the layer
var lastKeyIndex = layer.timeRemap.nearestKeyIndex(endTime);
layer.timeRemap.setSelectedAtKey(lastKeyIndex, true);
})();

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How to use the script

Always check code before running it on your computer. Even basic scripts like this one. If you’re not a developer, ask an LLM like ChatGPT, Claude, or Gemini to verify it for you.

Option 1: Install to your AE Folder

Download and install the below .jsx file in your After Effects Script folder. You can then run it using the scripts menu, or by using a launcher like Quick Menu 3.

Option 2: Adapt the script yourself

Alternatively copy the code below and develop your own version. If you’re not a developer you can do this easily with an LLM like ChatGPT.

‍

How to use the script

Always check code before running it on your computer. Even basic scripts like this one. If you’re not a developer, ask an LLM like ChatGPT, Claude, or Gemini to verify it for you.

Option 1: Install to your AE Folder

Download and install the below .jsx file in your After Effects Script folder. You can then run it using the scripts menu, or by using a launcher like Quick Menu 3.