Reverse Audio
Play any song or recording backwards, preview it instantly and download the reversed audio as MP3 or WAV. Runs in your browser, nothing uploaded.
- No uploads
- No limits
- No signup
Drop an audio file here
MP3, WAV, M4A, FLAC, OGG, AAC and more
- Input:
- Audio
- Output:
- MP3 · WAV
- Runs on:
- Your device
- Size limit:
- None
- Account:
- Not needed
How to use Reverse Audio
Add your audio
Drop an MP3, WAV, M4A, FLAC or other audio file, or click to browse. It stays on your device.
Listen backwards
Press Play reversed to hear the whole file played from the end to the start.
Download
Choose MP3 or WAV and press Reverse audio to save the reversed version.
Why Reverse Audio on Toolshed
No uploads
Everything runs in this browser tab. Your files never leave your device.
No limits
No file-size caps, no daily quotas. Process as much as your device can handle.
No signup
No account, no email, no watermark.
Frequently asked questions
Can I use this to find hidden backward messages?
Yes. Reversing is exact, so you hear precisely what was recorded, played from the end to the start. It is also handy for reverse-singing challenges, sound effects and reversed cymbals or vocals in music.
Which files work, and what do I get?
MP3, WAV, M4A, AAC, FLAC, OGG and most audio your browser can play. You can save the reversed audio as MP3 (128–320 kbps) or as lossless WAV.
Is my audio uploaded?
No. The preview is made by your browser and the download by a copy of FFmpeg running on your device, so your audio never leaves it.
Are my files uploaded anywhere?
No. Reverse Audio runs entirely in your browser. Your files are processed on your device and are never sent to a server.
Is there a file size limit?
No fixed limit. The only limit is your device's memory. Very large files work best in a desktop browser.
Is Reverse Audio really free?
Yes. There's no account and no watermark. A short optional ad, or a 20-second wait, unlocks each download. That's how we keep it free.