Play your audio file backward and download the reversed result. Works instantly in your browser — no upload, no account needed.
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Choose Audio FileMP3, WAV, OGG, M4A · Max 30MB
Reversing your audio...
This tool plays an audio file backward — reversing the order of every sample so the end of the recording becomes the beginning and vice versa. Upload an audio file, reverse it, preview the result, and download the reversed version.
Processing happens entirely in your browser using the Web Audio API — your audio is never uploaded to a server.
Reversing audio simply reorders the underlying sample data — the last sample becomes the first, and the first becomes the last, for every channel. This is a lossless operation: no audio data is removed or altered, only its order is reversed. The duration, sample rate and overall quality remain unchanged.
The effect of reversal depends heavily on what's being reversed. Speech reversed becomes an unintelligible but oddly rhythmic stream of sounds — vowels and consonants that normally trail off sharply (like "t" or "k" sounds) instead seem to swell in from nowhere, which is part of why reversed speech has such a distinctive, eerie quality. Reversed music tends to highlight the "attack" and "decay" shape of each note in an unfamiliar way: a piano note, which normally starts loud and fades, becomes a sound that swells up to a sudden stop. Cymbals and crash sounds are particularly well-suited to reversal — a reversed cymbal crash creates a rising "swoosh" that builds tension, which is why it's such a common transition effect in music production and video editing.
If you're experimenting for the first time, try reversing a short clip of someone talking, then a clip of a single sustained musical note, and compare how different the effect sounds — it's a quick way to get a feel for how reversal interacts with different types of source material.
Beyond the classic reversed-cymbal transition, producers use reversal for a range of techniques: reversed vocal "ah" or "oh" sounds are sometimes layered underneath a track's intro to build anticipation before the beat drops; reversed reverb (recording a sound, reversing it, applying reverb, then reversing the result again) creates the pre-echo "swell" effect mentioned above and is a staple in ambient and cinematic music; and reversed found-sound or field recordings are often used in sound design for unsettling or otherworldly atmospheres in games and films. None of these techniques require specialist software — they all start with the same basic reversal operation this tool performs.
If you want to combine the reversed clip with the original, use Audio Merger to join them. To trim the reversed result to a specific section, use Audio Trimmer.
No, reversing only reorders the sample data — no audio data is removed or altered, so quality remains exactly the same.
This tool reverses the entire file. To reverse only a section, trim the file to that section first using Audio Trimmer, then reverse the trimmed clip.
The reversed audio is exported as a WAV file.
Yes, reversing a reversed file restores the original order, since reversal is a fully reversible operation.
No, processing happens entirely within your browser.