Reverse Audio
Reverses the sample order of every channel. What plays last plays first. Three classic uses: build a riser by reversing a crash or vocal note before a drop; create a swell by reversing reverb tail before a chorus; flip a sample to use the reversed phrase as a hook. Lossless operation, runs in milliseconds.
How it works
Drop the audio
Anything decodable in the browser.
Up to 200 MB
Reverse
Web Audio decodes, the script reverses each channel's PCM sample array, then writes a new WAV with the reversed data. Stereo image is preserved (left stays left).
Method: Float32Array index reversal · per-channel
Download
16-bit WAV at the source sample rate. Drop into any DAW or media player.
Same duration as the source
Producer's secret weapon
The trick behind risers, swells, and flipped samples
Reversing audio is one of the oldest tricks in production and it still sounds great. Flip a crash or a vocal note to build a riser into a drop, reverse a reverb tail so it swells up into a chorus, or spin a sample backwards to turn a familiar phrase into a fresh hook. It's lossless and instant.
Reversed reverb, step by step
How to make that swell-up effect everyone loves
It's two moves. First, get a clean reverb tail, bounce a hit through a reverb in your DAW, mute the dry signal, and export just the wet decay. Then drop that tail in here and reverse it. Drop the reversed swell in just before a downbeat and you've got the effect that pulls the listener into the next section.
Part of a clip
Reverse just a section by trimming first
This flips the whole file, so if you only want a slice reversed, cut it out with the Audio Trimmer first, reverse the clip here, then drop it back into your project. The output is lossless WAV, the right format for a sound-design piece you'll keep processing, and none of it ever leaves your browser.
Frequently asked questions
Can I reverse just part of the audio?
Not directly with this tool. Use the Audio Trimmer first to cut the section you want to reverse, run the reversed clip through here, then merge it back into your project with the Audio Merger or your DAW.
Why does the output drop the original format?
Reversing happens on decoded PCM samples, and the safe lossless way to ship those is as WAV. Re-encoding to MP3 or AAC after reversing would add lossy compression to a sound design clip. Usually you want lossless WAV for further processing.
Reversed reverb. How do I make that?
Two steps. One: take a clean reverb tail (the decay after a sustained note ends). Bounce a hit through a reverb plugin in your DAW, mute the dry signal, export just the wet tail. Two: drop that tail in here and reverse it. Place the reversed tail just before a downbeat for the classic 'swell' effect.
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Supports WAV · FLAC · MP3 · M4A · AIFF