Free, in your browser
Slowed and Reverb Generator
This slowed and reverb generator turns any song into its late night version in one click: slower, a little lower, in a wide plate reverb. Pick a light, classic or deep take, keep the key if you prefer, and shape the reverb in seconds. It plays as you change it, and you download exactly what you heard as MP3 or WAV.
Classic slowed + reverb
Our dance pop song at 0.85×, 129 to 109.7 BPM and about three semitones lower, in a 3.5 second plate reverb with a little more bass: the classic slowed and reverb sound.

0.85×, pitch follows (−2.81 st) · plate reverb
- Tempo
- 129 BPM→109.7 BPM
- Length
- 0:20.00→0:27.03
- Reverb tail
- +3.5 s
Original
Changed
Make your own song slowed and reverb
Use your own file- runs in your browser, no sign-up
- Free
- light, classic and deep
- 3 takes
- reverb decay, room size too
- 0.5 to 8 s
- lower like a record, or the key kept
- Your choice
- peaks kept below full scale
- No clipping
- up to 320 kbps or 24-bit
- MP3 or WAV
How do you make a slowed and reverb song?
Open the slowed and reverb generator in the studio and drop in the song. It starts on the classic take: 0.85× with the pitch following, like a record played slower, in a 3.5 second plate reverb. Press Play to hear it, switch to light or deep, then press Make the file and download MP3 or WAV.
Slowed and reverb in three steps
This slowed reverb generator works on a phone or a computer, with any song your browser can play.
Drop in the song
MP3, WAV, FLAC, M4A or OGG, or the sound of a video. Its tempo and key are read straight away.
Pick a take
Light, classic or deep, or set the speed and the reverb yourself. Keep the key, or let it drop with the speed.
Download what you heard
MP3 up to 320 kbps or 16- or 24-bit WAV, made by the same chain as the preview, with the reverb’s tail at the end.
Why use this slowed and reverb generator
Three tuned takes, a reverb measured in seconds, and the file you download is the sound you played.

Light, classic or deep
Light plays at 0.9× in a 2.5 second reverb, classic at 0.85× in 3.5 seconds, deep at 0.8× in 5 seconds with a bigger room. We set all three by listening to them side by side on our own songs, in both orders.
Lower like a record, or the key kept
Slowed and reverb usually lets the pitch drop with the speed, like a record played slower: 0.85× is about three semitones lower. Choose “Keep the pitch” and the song slows down in its own key, the voice its own.
A plate reverb set in seconds
Decay from 0.5 to 8 seconds, room size from 50 to 150%, and the mix, bass and brightness of the reverb, each shown as a number, so a setting you like is easy to make again.
A long tail, or a short one
Raise the decay and every note rings on into the next; lower it for a tighter sound. The reverb’s tail is added after the last note, so the song never cuts off mid echo.
A Nightcore maker too
Nightcore is the opposite of slowed: 1.25× with the pitch rising, about four semitones up. Sped up is 1.2×. Both are one click, next to the slowed takes.
What you hear is what you download
The preview runs through the same chain as the file, so the download is made by the very chain you heard. When the reverb would push a peak past full scale, the whole file is turned down just enough, so nothing clips.
Slowed and reverb generator samples
Our own songs, before and after, made by this slowed reverb generator in the browser. Play the original and the result, then open any of them in the studio with its settings.
Slowed and reverb, step by step
What slowed and reverb is
A slowed and reverb edit plays a song a little slower and lower, in a wide reverb, so it sounds hazy, warm and far away. The usual speed is 0.8× to 0.9×, with the pitch following the speed.
How much slower: the numbers
Here is what each take does to a three-minute song. Sped up and Nightcore go the other way.
- 1Light, 0.9×: about 1.8 semitones lower, 3:00 becomes 3:20.
- 2Classic, 0.85×: about 2.8 semitones lower, 3:00 becomes 3:32.
- 3Deep, 0.8×: about 3.9 semitones lower, 3:00 becomes 3:45.
- 4Sped up, 1.2×: about 3.2 semitones higher, 3:00 becomes 2:30.
- 5Nightcore, 1.25×: about 3.9 semitones higher, 3:00 becomes 2:24.
Does slowed and reverb lower the pitch?
In the classic sound, yes: the pitch drops with the speed, like a record played slower, and that lower, darker tone is part of the feel. If you want the song slower in its own key, choose “Keep the pitch” and the speed changes alone.
With the key kept, the reverb still gives the dreamy space, and the voice sounds like the singer, only slower.
How to set the reverb
Start from the take you like and change one thing at a time. A longer decay makes the tail ring on; a bigger room spreads the sound wider; more mix pushes the song further back.
If the words start to blur, lower the mix before the decay: the space stays, and the voice comes forward again.
A slowed song in a fast genre often sounds best on the light take; a ballad can take the deep one.
Nightcore maker: faster and higher
Nightcore speeds a song up with the pitch rising with it, usually by about a quarter: 1.25× in this nightcore maker. Sped up is the gentler version at 1.2×, popular for short videos. Neither adds reverb, and you can add some from the same panel.
Before you post it
A slowed and reverb version is still the song, so posting it depends on who owns it. Your own music is yours to share; for someone else’s song, check the rights first. Our guide to AI music and copyright explains how ownership works.
To slow down a song for practice without the reverb, the audio speed changer keeps the key and loops a part.
What people make with a slowed and reverb generator
A slowed and reverb version for a mood, a video or a playlist of their own.

Late night versions
Turn a favourite song into the slow, hazy version for headphones after dark.

Short video sounds
Make a slowed or sped up cut of your own track for a short video.

Study and focus playlists
Slow down lo-fi and soft songs into a calmer, wider sound to work to.

Your own songs
Release a slowed and reverb edit of your track next to the original.

Nightcore edits
Make a fast, bright Nightcore version of a dance track in one click.

Sound design
Stretch a pad or a guitar loop into a long, washed background.
Slowed and reverb generator FAQ
Make your slowed and reverb version
Open the slowed and reverb generator, drop in a song, pick light, classic or deep, and download exactly what you heard. A slowed reverb generator that also makes Nightcore.



