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Free Reverse Audio

Play an audio file backwards. Useful for music production and checking for hidden reversed messages. Runs entirely in your browser, no upload.

No file size limitFiles stay privateNo login requiredFree forever

Drop files here, or click to browse

MP3, WAV, FLAC, OGG, AAC, M4A, Audio no file size limit

Browse files

Your files never leave your device. All processing happens locally in your browser.

Reverse an audio file so it plays backwards. Great for music production and checking for "backmasking". Runs entirely in your browser.

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Reverse Audio for Music Production Check Audio for Backmasking Reverse Sound Effects Decode a Reversed Audio Clip Reverse a Voice Recording for Fun

How It Works

Reversing audio plays it back to front, sample by sample. This does it with FFmpeg in your browser — useful for production effects and for checking "backmasking" (hidden reversed messages).

1
FFmpeg.wasm loads once
The WebAssembly build downloads on first use and is cached afterwards.
2
You drop in audio
Your file is read into the browser's memory — never uploaded.
3
FFmpeg reverses it
The areverse filter flips the audio sample order; the result is re-encoded to MP3, all on your CPU.
4
You download the reversed track
Preview it in-page and download the MP3.