Audio Reverser

Play any audio backwards — for reverse-reverb swells, risers, or settling a backmasking rumour. Completely lossless, instant, and free.

About the Audio Reverser

The audio reverser plays a file backwards — the last moment becomes the first. It's exact and completely lossless: reversing is just reading the same samples in the opposite order, so nothing is recalculated and nothing degrades. Reverse a clip twice and you're back precisely where you started.

The classic use is the reverse-reverb swell: flip a vocal or snare, add reverb, then flip it back, and the reverb blooms into the note instead of trailing after it. Reversed cymbals and risers build tension before a drop, reversed speech and foley make unfamiliar textures, and backmasking rumours are settled in about ten seconds. One thing to know: because the end becomes the beginning, silence at the tail of your clip ends up at the front — so trim the ends first. How to reverse audio covers the technique.

Frequently Asked Questions

What does reversing audio do?

It flips the track end-to-end so it plays backwards — the last moment becomes the first. It's a staple effect for producers building reverse cymbals, backwards vocals, and transition swells, a fun way to hear 'hidden' backmasked messages, and a handy utility for sound designers. The reversal is sample-exact, so no audio quality is lost in the process.

Does reversing reduce the audio quality?

No. Reversing simply plays the existing samples in the opposite order — nothing is re-compressed or recalculated, so the reversed track is exactly as high quality as your source. If you export to WAV it stays lossless; exporting to Opus applies normal compression, the same as any compressed format.

Can I preview it before downloading?

Yes — hit play to hear the reversed track immediately, then export only if you like it. The preview plays the exact audio you'll download, so there are no surprises.

Is my file uploaded to reverse it?

No. The reversal happens instantly and entirely in your browser using the Web Audio API. Your file never leaves your device, and there's no server involved at any step.