Audio Reverser

Reverse an audio file so it plays backwards — the classic technique for hidden-message hunting, sound design and music production effects. Runs locally in your browser.

100% free No uploads Runs in your browser No signup

Reverse audio

Drop a file to processProcessed by FFmpeg compiled to WebAssembly — entirely on your device

Every sample is played back-to-front. Try it on speech for hidden-message hunting, or on cymbals and risers for smooth reverse-swells in music production.

How to use the Audio Reverser

1
Open the tool above — it is already running, no install or account needed.
2
Enter your input and adjust the options to match what you need.
3
Copy or download the result — everything was processed locally in your browser.

Private by design

This tool runs 100% inside your own browser using local JavaScript — your input never touches a server. That makes it instant, offline-capable in many cases, and private even for sensitive data.

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