Reverse Any Audio File Online — Load an audio file and flip it so it plays backwards. Use it to create backward sound effects, uncover reverse-masked audio, or prepare creative mixes. The full track is reversed from end to start and the result keeps the original length. Download as WAV (lossless) or MP3.
Supported input: MP3, WAV, FLAC, OGG, Opus, M4A, AAC, WMA, AIFF and other common audio formats. Files are never uploaded to a server.
First use loads an ~30MB audio processing engine into the current browser. It is cached and reused afterwards, so please be patient.
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Click to select or drag and drop an audio file
Any common audio format; under 500MB recommended
The whole audio is reversed so the end of the track becomes the beginning. The output duration stays identical to the input.
Note: reversing a long file can take a moment because every sample has to be re-ordered. The processing runs locally in your browser.
Reversing vs phase inversion — two different things. This page reverses playback: the last sample plays first and the whole waveform runs backwards (the classic hidden-message and reverse-reverb effect). Phase inversion is unrelated — it flips the waveform's polarity (positive swaps with negative), sounds identical in mono, and never plays anything backwards. The reversed result is re-encoded: WAV output keeps the decoded samples intact, MP3 output adds one lossy generation.
