Reverse Audio
Record your voice or open a song, voice note or video, hear it played backwards, and save the reversed audio as MP3 or WAV.
Drop a file here or record your voice
- MP3
- WAV
- M4A
- FLAC
- OGG
- Video · Max 500 MB
What you can do with reversed audio
The audio reverser plays your sound from its last moment to its first. Nothing else changes: the speed, the pitch and the length stay exactly as they were.
How the reverse singing challenge works
The challenge, popular on TikTok, is to copy a reversed sound so closely that playing your copy backwards turns it into the original words again.
How to reverse audio
Three steps, all on this page.
Frequently asked questions
Open a song, voice note or video above, or press Record with microphone and record yourself. The audio is reversed straight away: press Play to hear it, switch to Original to compare, and press Save reversed to keep it as an MP3 or WAV file.
Press Record with microphone and allow microphone access if your browser asks. Speak or sing, then press Stop. The silence before and after your voice is cut, the volume is evened out, and your voice plays backwards right away. Press Save reversed to keep it.
Record a short phrase and listen to it reversed. Then press Try the reverse challenge and copy the reversed sound. Your copy is reversed automatically and appears as Your reveal, next to the reversed original and the original. If your imitation was close, your reveal sounds like the phrase you started with. Try again records a new imitation and keeps your first recording.
No. Recording, reversing and saving all happen in your browser, on your own device, and nothing is sent to a server. Reloading or closing the page clears your audio.
MP3, WAV, M4A, AAC, FLAC and OGG audio, plus videos such as MP4, MOV and WebM, where the soundtrack is reversed. Each file can be up to 500 MB. The reversed audio is saved as MP3 (320 kbps) or WAV, at the same sample rate as your file.
Yes. It works in Safari on iPhone and iPad, in Chrome on Android and in any current browser on a computer. The first time you record, your browser asks whether this page may use the microphone; allow it to start recording.
No. Reversing only changes the order of the sound, so the speed, pitch, length, sample rate and channels stay the same. Choose WAV to save the reversed audio uncompressed, or MP3 for a smaller file.
The whole file is reversed, from its last sound to its first. To reverse a single part, trim the file to that part in an audio editor and open the trimmed file here, or record just that part with the microphone while it plays.
Backmasking is a sound or message recorded backwards on purpose, so it only makes sense when the track is played in reverse. Musicians have used it as an effect since the 1960s, and many songs are rumored to hide reversed messages. Open the song here and play it reversed to listen for yourself.
Most speech sounds start sharply and then fade, like the t in “time” or the k in “cat”. Played backwards, they swell up and stop suddenly, so even familiar words turn into something that sounds like a new language.
Up to 30 minutes at a time, which covers anything from a single word to a long voice note. At 30:00 recording stops by itself and the take is reversed as usual.
Yes. Recording, reversing and saving are free, with no account and no watermark, as often as you like.