Reverse Audio Online

Flip any track so it plays backwards, then export it. Free with a DefyAudio account, and processed entirely in your browser.

How to Reverse Audio

  1. 1

    Open the Audio Studio

    Go to the DefyAudio Studio and add your file — MP3, WAV, FLAC, OGG, M4A, AAC, or the audio of an MP4, MOV, MKV or WebM video.

  2. 2

    Open the Effects tab

    In the settings rail, switch to the Effects tab.

  3. 3

    Turn on Reverse

    Switch Reverse on to play the audio backwards.

  4. 4

    Export

    Choose MP3, WAV, FLAC, OGG or AAC (.m4a) in the Format tab and export your reversed track — processed on your device.

One switch

Reverse flips the whole selection back-to-front.

Stack effects

Combine it with the Reverb slider, a speed or pitch change, or a fade from the Levels tab.

Five export formats

Save the result as MP3, WAV, FLAC, OGG or AAC (.m4a).

Why Reverse Audio?

Reversing audio plays the waveform back-to-front, a classic technique for creative sound design: reversed cymbals, backwards vocals, risers before a drop, or listening for hidden 'backmasked' messages. DefyAudio reverses the selected part of the track and lets you export it directly.

Reverse sits in the Studio's Effects tab next to Speed, Pitch and Reverb, so you can combine them in one export. Reverse is applied first: reverb added at the same time lands on the already-reversed sound. Add a fade-in from the Levels tab and a reversed clip turns into a smooth riser.

Everything runs in your browser through WebAssembly. The file is read from your disk and processed on your device, never uploaded.

100% private — files never leave your device
No upload, no watermark on the output
Works in any modern browser, on any OS
Free account with 5 daily uses

Frequently Asked Questions

How do I reverse an audio file online?

Upload it to DefyAudio's Studio, open the Effects tab, enable Reverse, and export — the track plays backwards.

Can I reverse only part of a track?

Yes. Set the start and end handles on the waveform to the section you want, turn on Reverse, and export just that part.

Is it free?

Yes, with a free DefyAudio account. The free plan includes 5 uses a day per tool.

Is my audio uploaded?

No — reversing happens in your browser, so the file never leaves your device.

Ready to get started?

Create a free account and start in seconds — 100% private, right in your browser.