The Reverbify extension

What you can change

• Speed. Slow a track down for slowed + reverb, or speed it up for a sped up edit. With Preserve Pitch on, the vocals stay in their original key either way.
• Pitch. Shift the pitch on its own, or pair it with a faster tempo for nightcore.
• Reverb. A wetness slider plus room presets, from a little bit of space to a lot.
• EQ. Knobs and presets for shaping the tone of whatever's playing.
• Presets. Save the combinations you keep coming back to and switch between them from a dropdown.

Every control applies to the live audio, mid-song. There's no render step and no waiting. You hear the change as soon as you make it.

Install it in about a minute

1. Add Reverbify from the Chrome Web Store or Firefox Add-ons. The Chrome build also installs on Edge, Brave and other Chromium browsers.
2. Open open.spotify.com and press play on anything.
3. Click the Reverbify button in the player and start dragging the sliders. That's it!

Why it only works in the browser

Since a Spotify slowed and reverb extension runs in your browser, it can only remix what your browser plays. The web player (aka open.spotify.com) works, but the native desktop and mobile apps don't. However, there's a good workaround. Start the music in the browser tab running Reverbify, then control playback from any other device. You can skip, search and queue from your phone or the desktop app while the remixed audio keeps coming out of the browser.

Extension or the web remixer?

The extension remixes your streaming library in place, so there's nothing to export. You just press play. The web remixer works on your own files instead: drop in an mp3, wav or flac, tune the edit, and download a full-quality WAV to keep. If you mainly listen on Spotify, start with the slowed + reverb on Spotify guide.

Quick answers