Check Audio for Backmasking

Reverse a track to listen for hidden backwards messages.

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MP3, WAV, FLAC, OGG, AAC, M4A, Audio ingen filstørrelsesgrense

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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.

Velg Fil

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

Prosess

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

Last ned

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

✓Helt gratis – aldri noen skjulte kostnader

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✓Filer forlater aldri enheten din

✓Ingen filstørrelsesbegrensninger overhodet

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