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Free · In-browser · No upload

Reverse Audio.

Flip any sound backwards in one click — then grab the mic and see if you can speak your own name in reverse.

Before-and-after illustration of Reverse Audio: Forward audio becomes Backward render through Flip sample order.
Before → process → afterSee the signal story, then hear it in the workspace.

TIMELINE MAP

Reverse Playback View

Turn one long waveform into deliberate boundaries. The visual emphasizes the selection, transition and resulting edit so that timing decisions remain obvious before anything is rendered.

Before-and-after illustration of Reverse Audio: Forward audio becomes Backward render through Flip sample order.
Forward audioFlip sample orderBackward render
A timeline edit: marked regions, handles and transitions resolve into clean finite segments without hiding where each boundary came from.
Open the full signal breakdownBest source, processing logic, limits and three-pass listening check
  1. Forward audio

    Start with the right material

    Reverse effects, transitions, sound-design experiments and pronunciation challenges.

  2. Flip sample order

    Understand the transformation

    Decoded PCM samples are reversed channel by channel and then rendered locally.

  3. Backward render

    Verify the usable result

    A backward-playing version of the complete source.

Direction cue

Where this workflow stops

The whole decoded buffer must fit in memory. Reversing does not remove vocals, restore deleted audio or preserve a natural attack envelope.

THREE-PASS CHECK

Make the final decision by ear

  • Zoom into every boundary and listen across it, not only inside it.
  • Leave intentional handles when another editor will continue the work.
  • Verify exact duration and ordering after the final render.

How to reverse audio online

  1. Drop any audio file into the upload box — it is reversed automatically as soon as it decodes.
  2. Press play to hear the backwards version.
  3. Download it as a 320 kbps MP3 or WAV.
  4. 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.

Reverse Audio: quick answer and technical limits

Quick answer: A literal reverse-audio tool that flips the decoded sample order so the entire file plays backward.

Best for
Reverse effects, transitions, sound-design experiments and pronunciation challenges.
How it works
Decoded PCM samples are reversed channel by channel and then rendered locally.
What you get
A backward-playing version of the complete source.

Know before you use it: The whole decoded buffer must fit in memory. Reversing does not remove vocals, restore deleted audio or preserve a natural attack envelope.

Privacy: Selected audio is processed in this browser and is not uploaded to AudioWrench. Normal page assets can still be requested as described in the privacy notice. Privacy details →

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, it is free without an account. Selected files and challenge recordings are processed on your device and are not uploaded to AudioWrench. Normal page assets can still be requested as described in the privacy notice.