Make a slowed and reverb version
Speed changes length and pitch together, from 50% to 120%. Reverb mix and room size shape the tail. The tail is included in the download so the end does not chop off.
Drop a song
A full track takes longer because the render includes the reverb tail.
MP3, WAV, M4A, OGG, OPUS, AAC, FLAC
85% is a common slowed setting. Pitch follows the speed.
How much of the room you hear next to the dry song.
Larger rooms last longer and sound darker.
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What is slowed and reverb?
Slowed and reverb is an effect that plays a song slower, which also lowers its pitch like a slowed tape, and adds reverb to give it a spacious, washed sound. This tool lets you set the speed from 50 percent to 120 percent, with 85 percent as the usual starting point, then shape the reverb with two controls. Mix runs from 0 to 100 percent and starts at 40 percent, and room size runs from 20 to 100 percent and starts at 70 percent. The reverb tail is added after the song so the ending can ring instead of chopping off, which makes the file longer than the speed change alone. It runs in your browser, so the file is not uploaded. Save a 16-bit WAV or an MP3. If you need a slower file in the original key, use Speed and Pitch with Keep pitch. It is free, with no account and no watermark.
How to use it
- Set the speed Start at 85% if you want the usual slowed feel.
- Set the room Raise mix for more wash. Raise room size for a longer tail.
- Save Choose WAV for a full-quality file, or MP3 when you need a smaller one. Nothing is uploaded.
Pitch follows the slowdown
This tool slows like a tape, so the key drops with the speed. Use Speed and Pitch with Keep pitch if you need a slower file in the original key.
FAQ
Is there a daily limit?
No. The site sets no daily limit, no quota and no account requirement. The processing happens on your own device, so the only practical limit is the memory and speed of that device, especially for very long files. You can slow as many songs as you like. You must own the rights to the audio you process.
Why is the file longer than the speed change?
The reverb tail is added after the song so the ending can ring out instead of cutting off. Slowing also makes the audio longer, because 85 percent speed plays the same material over a longer time. The download therefore runs longer than the original by the slowdown plus the tail. Lower the room size for a shorter tail.
Can I use it on a voice note?
Yes. Speech will sound lower and more distant, because the speed change lowers the pitch like a slowed tape and the reverb adds a sense of space. It works as a creative effect for a voice note. If you want a slower voice in its original key, use Speed and Pitch with Keep pitch instead.