How to reverse audio online
- Drop any audio file into the upload box — it is reversed automatically as soon as it decodes.
- Press play to hear the backwards version.
- Download it as a 320 kbps MP3 or WAV.
- Optional: scroll to the reverse name challenge, record your name, study the backwards playback, then record an imitation and hear it flipped back.
Reversing audio flips every sample so the file plays end to first — words become alien syllables, cymbals swell instead of crash, and familiar melodies turn eerie. Producers use reversed audio for swells, transitions and hidden-message effects; teachers and streamers use the built-in name challenge as a party game. The reversal is instant because it happens in your browser's memory: no upload, no processing queue, no signup.
For creative follow-ups, layer the reversed track in the Audio Joiner, cut the best swell with the Audio Trimmer, or push your reversed voice through the Voice Changer for something truly strange.
FAQ
How do I reverse an audio file?
Drop the file on this page — that is the whole process. The samples are flipped end-to-front the moment it decodes, the reversed version appears in the player, and you can download it as a 320 kbps MP3 or WAV.
What is the reverse name challenge?
A two-round game built into the page. Round one: record yourself saying your name and listen to it backwards. Round two: try to imitate that backwards sound with your own voice — your imitation is reversed again, and if you did well, your name comes back out the right way around. It is harder and funnier than it sounds.
Does the tool need microphone access?
Only for the name challenge, and only when you press Record — your browser will ask for permission at that moment. Reversing uploaded files needs no microphone at all, and recordings stay on your device like everything else here.
Is reversing audio free, and is anything uploaded?
Yes, free without an account, and no — both file reversal and the challenge recordings are processed in your browser with the Web Audio API. Nothing is sent to a server.