Check Audio for Backmasking

Reverse a track to listen for hidden backwards messages.

No cal iniciar sessióEls fitxers es mantenen privats

Deixa els fitxers aquí o fes clic per navegar

MP3, WAV, FLAC, OGG, AAC, M4A, Audio sense límit de mida de fitxer

Navegar pels fitxers

Els teus fitxers no surten mai del teu dispositiu. Tot el processament es fa localment al teu navegador.

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.

Triar fitxer

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

Processa

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

Descarrega

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

✓Completament gratuït — sense costos ocults, mai

✓No cal compte, correu electrònic ni inici de sessió

✓Els fitxers no surten mai del teu dispositiu

✓Sense cap límit de mida de fitxer

✓Sense marques d'aigua en cap sortida

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