AudioToMarkers is a free After Effects script that converts audio intensity into layer markers, splits, or sequentially numbered text layers using keyframes generated from the built‑in Convert Audio to Keyframes command.
Developed by Lloyd Alvarez.

About AudioToMarkers
AudioToMarkers, created by Lloyd Alvarez, reads audio intensity keyframes and offers three possible outputs: placing markers on a chosen layer, splitting that layer at audio peaks, or generating a new text layer with incrementing numbers. The user selects an audio layer, runs the After Effects Keyframe Assistant command “Convert Audio to Keyframes,” then launches the script, refreshes the layer list if needed, and chooses the desired output. The script supports After Effects versions from CS6 through the 2026 release, including all intermediate CC and 2020‑2025 builds. Version 1.54 (released August 2021) fixed a bug affecting compositions that do not start at time 0, and earlier updates added Sound Keys integration and a minimum‑frames‑before‑cut option.
Features
- Places markers on a layer based on audio intensity
- Splits a layer based on audio intensity
- Creates a new text layer with incrementing numbers
- Works from keyframes made by the “Convert Audio to Keyframes” Keyframe Assistant
- Refresh button to update the layer list when a layer does not appear
- Minimum-frames-before-cut feature
- Support for Sound Keys
Best for
After Effects users who need to translate audio amplitude data into visual markers, layer cuts, or numbered text without writing expressions.
Frequently asked questions
What After Effects versions does AudioToMarkers support?
AudioToMarkers runs on After Effects versions from CS6 through the 2026 release, including CS6, CC 2014‑2019, CC 2015.3, CC 2017‑2020, and the 2021‑2025 yearly updates.
How do I generate markers with AudioToMarkers?
First run the Keyframe Assistant command “Convert Audio to Keyframes” on an audio layer. Then launch AudioToMarkers, select the target layer (refreshing the list if it is missing), and choose to place markers, split the layer, or create a numbered text layer.
Is AudioToMarkers free?
The catalog lists AudioToMarkers as free, but licensing details are managed through the developer’s distribution page and may include paid options; check the developer’s site for current terms.
Does AudioToMarkers support Sound Keys?
Support for Sound Keys was added in version 1.52 (July 2016) and remains available in later releases.
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