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Slowed + Reverb Maker

Make a slowed and reverb version of your audio in the browser. Adjust the slowdown and reverb mix, preview the effect and download the result.

MP3 or WAV · Drop a file here. Audio stays on your device.

Faster audio sounds higher; slower audio sounds lower.

Choose a file to get started.

Output options & limits

Preview and WAV use the same processed audio. MP3 uses lossy encoding. Limits: 80 MB, 10 minutes, mono or stereo.

Worth the wait. Zero audio uploads.Processed entirely on your device.

Create a slower, more spacious version of a recording you have permission to edit. The Slowed + Reverb effect combines slower playback with an echo-like sense of space. Adjust both parts of the sound, preview the result and save the finished file directly from your browser.

Audio stays on your device

Make a slowed and reverb edit

  1. Choose an audio file from your device.
  2. Select how much to slow it down. Try 0.8× for a gentle effect.
  3. Adjust Reverb to add a sense of space. Start subtle; a strong wet mix can blur voices and percussion.
  4. Wait for the automatic preview, then press Play to listen to the processed version.
  5. Download your result as MP3 or WAV, where the browser supports the selected format.

What does slowed + reverb do?

Slowed playback stretches the listening time and usually lowers the pitch in classic mode. Reverb simulates sound reflections in an imagined space, leaving a short trail after each sound. Combined, the two effects can make music feel calmer or more atmospheric.

Reverb is not the same as repeating the original track once. It adds many overlapping reflections or a decaying tail. The amount you use is a creative choice; too much reverb can reduce clarity.

Tips for a cleaner edit

Use a modest slowdown first. Listen carefully to vocals and drums. Keep the reverb mix lower when the original recording already has a lot of room sound. Compare the result with your original file before exporting.

Frequently asked questions

Does the reverb make the song longer?

A reverb tail may continue briefly after the original audio ends, depending on the effect settings.

Does slowing down change pitch?

In the classic slowed mode used here, yes: slower playback makes notes lower. For a speed change that preserves pitch, use the Audio Speed Changer.

Can I use this for my own voice recording?

Yes, if the recording format is supported by your browser. Preview the result first because reverb can reduce speech clarity.

Is the audio uploaded anywhere?

No. The effect is applied in your browser to a file you choose locally.

Can I publish the edited song on social platforms?

Only if you have the rights or permission needed for that use. Adding reverb or changing speed does not remove copyright restrictions.

Learn more

Read What is slowed + reverb? or explore our Pitch Changer.