Audio Reverser
Play any audio backwards — reverse a song, a voice note or a sound effect in one click, privately in your browser.
How to Reverse an Audio File in 3 Steps
Drop an audio file
Drag any MP3, WAV, M4A, OGG or FLAC onto the left pane. The waveform and a player appear.
Pick the format
Open Settings to choose MP3 (128–320 kbps) or lossless WAV for the result.
Reverse and download
Click Reverse audio. The samples are flipped end-to-start instantly and the result plays on the right.
Audio Reverser — Frequently Asked Questions
Is my audio uploaded anywhere?
No. The file is decoded by your browser's Web Audio engine, processed on your device and encoded to MP3 or WAV with an open-source encoder running in the page. Nothing is sent to a server.
Is the reversal exact?
Yes — every sample is mirrored, so reversing twice gives back the original waveform (apart from the final MP3 encode; choose WAV to keep it bit-perfect).
Why would I reverse audio?
Reverse-reverb and swell effects in music production, hiding or revealing backmasked messages, sound design for games, or simply checking what a clip sounds like backwards.
Which formats can I open and save?
Open anything your browser plays: MP3, WAV, M4A/AAC, OGG, Opus, FLAC and WebM audio. Save as MP3 (128, 192 or 320 kbps) or lossless 16-bit WAV. Pick the format under Settings before you run the tool.
How long does it take?
Processing is near-instant; MP3 encoding runs at roughly 15× real time, so a 5-minute song takes around 20 seconds. The progress bar shows the encode.