drop a song,
hear it slowed

Instant slowed + reverb, sped up, and custom remixes. Done entirely in your browser.

drag a track here

or click to browse (mp3, wav, flac, m4a, ogg)

free while in beta · nothing is uploaded · works offline once loaded

Use it in your browser or on Spotify

Reverbify is a free remixer that runs entirely in your browser. Drop a song into the player above and turn it into a slowed and reverb edit, a nightcore flip, or a lofi version while it plays. There's no account, no watermark, and no waiting. However, if the song you want to remix is on Spotify, the free Reverbify extension brings the same controls into the Spotify web player, live. 3,000+ listeners already run it on Chrome, Edge and Firefox.

The free presets

Four presets come free. Each one is a single click:

  • slowed + reverb (classic)

    Tempo drops to 0.8x with a generous reverb behind it. This is the classic slowed and reverb sound.

  • nightcore (sped up + pitched up + reverb)

    Speed and pitch climb together at 1.2x, with a short reverb to keep the top end sweet.

  • lofi (my personal favorite reverbify settings)

    It runs a touch slower, one semitone down, with a small drum-room reverb and clearer vocals.

  • original (the untouched track)

    One click takes you back to the unprocessed track, so you can compare your edit against the original.

How it works

  1. Drop a song. mp3, wav, flac, m4a, ogg and aac all work.
  2. Adjust the settings. You get speed with optional pitch preservation, pitch by semitone, eight reverb rooms from Bathroom to Cathedral, and twenty EQ presets including Bass Boost and Vocal Clarity.
  3. Download. You get a full-quality WAV of your remix. It renders in a separate offline pass, so the export is cleaner than the preview.

Nothing gets uploaded

The whole effect chain runs on your device through the Web Audio API. There's no server to wait on, no queue, and no copy of your music sitting in someone else's storage. That's why the sliders respond instantly.

Pages for specific effects

Every page below opens this same remixer with the right preset already loaded, which is handy if you came here for one effect in particular:

If you'd rather remix your Spotify library in place, grab the extension. The FAQ covers everything else.