Check Audio for Backmasking

Reverse a track to listen for hidden backwards messages.

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

backmasking tips

🕵️

Reverse a song to check the old "hidden message when played backwards" claims for yourself.

🎧

Reverse it again and you get the original back — it's a lossless operation in principle.

🔁

A fun way to explore audio you already have.

🔒

Runs locally in your browser.

Bestand kiezen

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Verwerken

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Volledig gratis — geen verborgen kosten, ooit

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✓Bestanden verlaten nooit je apparaat

✓Absoluut geen bestandsgroottelimieten

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