Audio Reverse
Play and export any track backwards. Running it twice returns the original exactly.
Play and Export Audio Backwards
Reversing audio is a staple of sound design — reversed cymbals for a swell, reversed speech for an effect, reversed reverb tails that pull into a downbeat. It is also how people check the old backmasking claims for themselves.
The operation itself is simple: read the samples from the end to the beginning. Doing it in the browser means the file never leaves your device, and because nothing is re-encoded the result is exact. Run the output through the tool a second time and you get the original back, sample for sample.
Key features
- Sample-exact reversal — no fades, no resampling, no quality loss. Reversing twice is a true identity operation.
- Compare before and after — a toggle plays either the original or the reversed version so you can hear the difference immediately.
- Waveform preview — the reversed shape is drawn on screen, which makes the change obvious before you even press play.
- Stereo preserved — both channels are reversed independently and stay in phase.
- Any format your browser reads — MP3, WAV, OGG, M4A, FLAC and Opus all work, because the platform decodes them.
This tool runs entirely inside your browser using native Web APIs. Your files and text are never uploaded to a server, never logged and never shared with third parties.
How to use: Audio Reverse
- Drop in your audio
The file is decoded locally and the reversed waveform is drawn straight away. - Listen to it backwards
Press Play. Untick the preview box to hear the original instead, and compare the two directly. - Download the result
Save the reversed audio as a 16-bit WAV, ready to drop into an editor or a video timeline. - Reverse it again if you like
Feeding the exported file back in returns the original exactly, which is a quick way to confirm nothing was lost.
Technical specifications
| Processing location | Entirely in your browser — no server round trip |
|---|---|
| Data uploaded | None. Files and text never leave your device |
| Price | Free — no account, no trial, no usage cap |
| Category | Audio |
| Works offline | Yes, once the page has loaded |
| Browser support | Chrome 90+, Edge 90+, Firefox 90+, Safari 15+ |
| Interface languages | English, 中文, हिन्दी, Español, العربية |
Frequently asked questions
Does reversing lose any quality?
No. The samples are copied in the opposite order and nothing else changes. The only transformation is the 16-bit WAV export, and running the result back through the tool reproduces the original exactly.
Can I reverse just part of a track?
Trim the section first with our Audio Cutter, then reverse the trimmed file. Doing it in that order keeps the edit points exactly where you put them.
Why does reversed speech sound so strange?
Speech is full of asymmetric sounds — a plosive has a sharp attack and a slow decay. Played backwards, the decay becomes a swell into a sudden stop, which is why reversed voices sound eerie even when the words are meaningless.
Is my file uploaded anywhere?
No. Decoding, reversing and WAV writing all happen inside the page. There is no server involved at any point.