Slowed and Reverb Generator: Make Slowed + Reverb Songs Online
Drop in a song, pick a preset or set the speed, reverb and bass yourself, and hear the result instantly. This slowed and reverb generator works entirely in your browser — no upload, no sign-up, no watermark — and exports a full-quality WAV of exactly what you heard.
Upload a song to the slowed and reverb generator
MP3, WAV, M4A, AAC, OGG or FLAC · up to 200 MB · stays on your device
Processed locally with the Web Audio API — your song is never uploaded.
How to use the slowed and reverb generator in 3 steps
- 1
Upload your song
Drag an MP3, WAV, M4A, OGG or FLAC into the slowed and reverb generator, or click to choose a file. It is decoded on your device in a second or two.
- 2
Pick a preset or fine-tune
Start with Classic slowed (0.85×), Dreamy, Daycore, Lo-fi or Nightcore, then adjust speed, reverb amount, room size, decay, bass and warmth while the preview plays.
- 3
Download the WAV
Press Download WAV. The slowed and reverb generator renders the whole track, including the reverb tail, into a lossless file ready for TikTok, Reels, YouTube or your DAW.
Why use this slowed and reverb generator
A slowed and reverb generator that runs in your browser
Most converters upload your file to a server and make you wait in a queue. This slowed and reverb generator uses the Web Audio API on your own computer or phone, so processing starts instantly, works on long tracks and keeps your music private.
The real slowed + reverb sound, with the pitch drop
Like a record played slower, lowering the speed also lowers the pitch: 0.85× drops a song by about 2.8 semitones and a 120 BPM beat becomes 102 BPM. That deeper, heavier tone is the signature of slowed and reverb edits, and the generator shows the pitch change next to the speed slider.
Reverb you can actually shape
The reverb is a convolution reverb built from a generated impulse response. Room size moves the early reflections from a small room to a cathedral, decay sets how long the tail rings, and an equal-power wet/dry mix lets you add space without the song getting louder.
Bass and warmth for a finished edit
Slowing a track can thin out the low end. A low-shelf bass boost brings the weight back, and the low-pass warmth control rounds off harsh highs for a muffled lo-fi or vaporwave feel — all in the same slowed and reverb generator.
Who it’s for
TikTok & Reels edits
Make the slowed + reverb version of a sound for aesthetic videos and transitions.
Study & sleep playlists
Turn upbeat songs into calm, spacious tracks for late-night listening.
Producers & DJs
Sketch daycore and nightcore flips or create ambient intros from your own stems.
Your own AI songs
Generate an original song, then make a slowed and reverb version you can post without copyright worries.
What is a slowed and reverb generator?
Slowed and reverb (often written “slowed + reverb”) is a remix style where a song is played a little slower and washed in heavy reverb. It grew out of chopped-and-screwed and vaporwave culture and took over YouTube and TikTok because it makes familiar songs feel nostalgic, emotional and cinematic.
A slowed and reverb generator automates the two studio moves behind that sound. It resamples the audio at a lower playback rate — stretching the tempo and dropping the pitch together — and then places the track in a virtual room with a long reverb tail. Daycore is the slowed, pitched-down version; nightcore is the opposite, sped up and pitched up.
Slowed and reverb generator presets
Each preset is a starting point. Move any slider and it becomes your own mix.
| Preset | Speed | Pitch | Reverb | Best for |
|---|---|---|---|---|
| Classic slowed | 0.85× | −2.8 st | 35% · medium hall | The standard slowed + reverb edit |
| Dreamy | 0.80× | −3.9 st | 50% · large, long tail | Sad, late-night, ethereal edits |
| Daycore | 0.75× | −5.0 st | 40% · warm | Heavy, dark daycore versions |
| Lo-fi | 0.90× | −1.8 st | 25% · small room, muffled | Study beats and chill playlists |
| Nightcore | 1.25× | +3.9 st | 15% · short | Fast, bright nightcore flips |
Slowed and reverb generator features
Speed 0.5× to 1.5×
Slow down for slowed + reverb or daycore, or speed up for nightcore, in 0.01× steps with a live pitch readout.
Convolution reverb
Generated stereo impulse responses with room size, decay and wet/dry mix — from a subtle room to a cathedral.
Live preview
Every slider updates the sound while it plays, so you dial in the vibe by ear instead of re-rendering.
Bass boost & warmth
Up to +12 dB low-shelf bass and a low-pass filter for muffled lo-fi and vaporwave tones.
Lossless WAV export
The full track plus the reverb tail is rendered offline at the original sample rate — no watermark, no length limit.
Private and free
No account, no upload, no queue. The slowed and reverb generator runs on your device and stays free.
Tips for a better slowed and reverb edit
- Stay between 0.80× and 0.88× for the classic sound; below 0.75× the beat starts to drag.
- Keep the reverb amount around 25–45%. More than that buries the vocal in the tail.
- Use a larger room with a shorter decay for clarity, or a long decay for an ambient, dreamy wash.
- Add +3 to +5 dB of bass boost to restore the weight that slowing removes.
- Pull the low-pass to 6–9 kHz for a softer, vintage tone that sits nicely under video voice-overs.
- Cut your favourite 30–60 seconds after exporting for a TikTok or Reels sound.
Make an original song, then slow it down
Slowed and reverb edits of other artists’ songs are fine for personal listening, but posting them can trigger copyright claims. With MusicGenerator.so, the AI music generator, you can create an original track from a short prompt or your own lyrics, then run it through the slowed and reverb generator for a version that is yours to share.
Frequently asked questions
More free AI music tools
Ready to make your slowed and reverb version?
Use the slowed and reverb generator for the songs you love, and MusicGenerator.so — the AI music generator — for the ones you haven’t written yet.
Last updated October 2026.