DollarWise

Free Audio Reverser — Play Audio Backwards Online

October 11, 2026 · 3 min read · By the DollarWise team

Ever wondered what your favorite song sounds like backwards — or need a reverse-cymbal swell for your next track? Upload any audio file and get a perfectly reversed version in seconds. Preview it right away, then download it as a WAV. Everything runs in your browser; your files are never uploaded anywhere.

Audio Reverser

Flip any audio file backwards — preview instantly, download as WAV.

100% Free Forever No Sign-up No Credit Card Private — files never leave your browser Unlimited Use

1 Add your audio

Drag & drop an audio file here or click to browse — MP3, WAV, OGG, M4A · one file at a time

    2 Reverse settings

    Crossfade ends (avoids clicks)
    Adds a tiny 10 ms fade so the reversed file starts and ends smoothly, with no clicks or pops.
    Every sample is played in reverse order — the last sound comes first. Stereo stays stereo; quality is lossless.

    3 Preview & download

    Reversing…

    ✅ Done — your reversed audio

    🎉 Free forever. No sign-up. No credit card. No limits.

    This tool runs entirely in your browser — files never leave your browser.

    How it works

    1. Your audio is decoded in your browser with the Web Audio API — nothing is uploaded.
    2. Every sample is re-ordered so the last sound plays first, on all channels (stereo stays stereo). The process is mathematically lossless — no quality is lost.
    3. An optional tiny edge crossfade removes clicks at the start and end. Preview the result instantly, then download it as a universal WAV file.

    Everyday uses

    • Music producers — make reverse-cymbal swells and backwards vocal effects in seconds.
    • Curious listeners — hear what your favorite songs or voice messages sound like backwards.
    • Podcasters — create reverse “rewind” sound effects for transitions.
    • Students — reverse a phrase to check how it sounds in speech-therapy or linguistics exercises.
    • Meme makers — backwards audio is comedy gold.

    FAQ

    Does reversing lose quality? No. Reordering samples is lossless — the reversed file has the exact same quality and sample rate as the original.

    What formats can I upload? MP3, WAV, OGG, M4A/AAC, and FLAC in most browsers — anything your browser can decode.

    What is the crossfade option for? Reversing can create a tiny click where the file starts and ends. The 10 ms edge smoothing fades those out. Turn it off if you want a mathematically raw reversal.

    Is my audio uploaded anywhere? Never. Decoding, reversing, and export all run locally in your browser. Files never leave your browser.

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