Reverse Audio
Audio Processing LaboratoryPlay a track backwards and export the reversed result.
What is Reverse Audio?
Reverse Audio plays any clip backwards and saves the flipped version, all inside your browser. Drop in an MP3, WAV, M4A, or OGG file, click one button, and preview the reversed result before downloading. Every sample is flipped end to end with the Web Audio API on your device, so your file is never uploaded.
How to use Reverse Audio
Add your audio
Drag a file onto the drop zone or click to browse. MP3, WAV, M4A, and OGG all work. The tool decodes it and shows a playable preview with its duration.
Reverse it
Click Reverse & download WAV. Every channel is flipped sample by sample so the audio plays back to front.
Compare the result
A reversed preview player appears beneath the button so you can play the flipped audio and compare it against the original above.
Download
The reversed WAV downloads automatically when you run the tool. All processing is local, so nothing is uploaded.
Common uses
- Create a reverse-cymbal or backwards swell for a track
- Design reversed sound effects for video or games
- Check a recording for hidden backmasked messages
- Make an eerie backwards vocal or ambience
- Build a reversed intro that leads into a downbeat
- Explore how a familiar sound behaves played in reverse
Why choose FreeTools
100% private
Your files are processed inside your browser and are never uploaded to a server.
Free, no account
No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.
Instant
No upload, no queue, no server round-trip — work starts the moment you drop a file.
Runs in your browser
Built on open web standards. Works on any modern desktop browser, nothing to install.
No upload size caps
Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.
Yours to keep
Results download straight to your device in clean, standard file formats.