Reverse Audio
Play any song or recording backwards — one click, right in your browser.
Drop an audio file, or click to browse
MP3, WAV, M4A, OGG, FLAC, AAC — up to about an hour
Processed locally — your file never leaves this tab
00:00.00 / 00:00.00
Adjust — fades, volume, speed, reverse
Precise times
Flip any track so it plays from the end to the start: hunt for hidden messages in songs, build backwards-cymbal effects for a mix, or just hear what your voice sounds like in reverse. The whole file is reversed on your device and only written out when you export.
How to use the Reverse Audio
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Add your audio
Drop an MP3, WAV, M4A or other file onto the page — it never leaves your device.
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Reverse it
Click the Reverse button and press play to hear the track backwards. Click again to flip it back.
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Save the result
Export the reversed audio as MP3 or lossless WAV. The download starts automatically.
Frequently asked questions
Why would I play a song backwards?
Musicians use reversed audio for creative effects — reversed cymbal swells, backwards guitar solos, ambient textures. It is also the classic way to check a track for backmasking, and honestly, hearing your own voice reversed is just fun.
Does reversing change the quality?
No. Exporting to WAV only reorders the samples — the audio is bit-identical to the original, just backwards. MP3 export re-encodes once at your chosen bitrate.
Can I reverse only part of a song?
Yes. Select the part you want on the waveform, set the mode to Keep selection, then hit Reverse — only that section is exported, backwards.
Does it work on my phone?
Yes. The reverse button and the waveform both support touch, and the export downloads directly on iOS and Android.
Is reversing really free and private?
Yes — no signup, no watermark, no limits. The reversal happens in your browser with the Web Audio API, so the file is never uploaded anywhere.
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Trim audio online — free, right in your browser. Nothing is uploaded.