Free · runs in your browser
Slowed and Reverb Generator
Drop in a song, slow it down, add reverb and bass, and hear the original and the slowed version side by side. Download an MP3 or WAV, or turn it into a video for TikTok, Reels and YouTube.
Free · No sign-up for MP3 and WAV · Your file never leaves your device
Drop a song here or click to upload
MP3, WAV, M4A, AAC, OGG or FLAC · up to 100 MB · processed in your browser, never uploaded
Choose audio fileWho Uses a Slowed and Reverb Generator
TikTok and Reels creators
A slowed, roomy version of a hook sits under talking or a montage without fighting the voice. Trim to the first 15 or 30 seconds and export a vertical video in one go.
Lo-fi and late-night playlist makers
Slowed + reverb is the quickest way to give an upbeat song a calm, after-hours mood for study or sleep mixes.
Artists making their own tracks
Make a song with the AI Rap Generator, then open it here with one click to try a slowed or nightcore version before you release.
DJs and editors
Audition a slowed idea in seconds and export a WAV to finish the edit in your DAW.
Slowed vs Nightcore vs Daycore: What Each Preset Does
Every preset is just a starting point for the same three dials. These are the exact values the tool uses.
| Slowed + Reverb | TikTok Slowed | Heavy Slowed | Daycore | Nightcore | |
|---|---|---|---|---|---|
| Speed | 0.85× | 0.80× | 0.75× | 0.78× | 1.25× |
| Reverb | 40% | 45% | 55% | 30% | 10% |
| Room | Hall | Hall | Cathedral | Small room | Small room |
| Bass boost | 0 dB | +2 dB | +3 dB | 0 dB | 0 dB |
| Sounds like | Dreamy, late-night, a little lower | The edit you hear under TikTok captions | Deep, slow and spacious | Slower and lower, without the big hall | Faster and higher, bright and energetic |
Values as used by this generator. Speed and pitch move together, the way a slowed-down record sounds; Vaporwave (0.70×) and Sped Up (1.15×) presets are also in the tool.
Slowed and Reverb Generator Specifications
| Input | MP3, WAV, M4A, AAC, OGG, FLAC (anything your browser can decode); up to 100 MB and 15 minutes. |
|---|---|
| Controls | Speed 0.50–1.50× (pitch follows speed), reverb 0–100%, three rooms (small room, hall, cathedral), bass boost up to +12 dB, trim with quick 15 s / 30 s / middle-30 s cuts. |
| Presets | Slowed + Reverb, TikTok Slowed, Heavy Slowed, Daycore, Vaporwave, Sped Up, Nightcore. |
| Audio output | MP3 (192 kbps) or WAV (16-bit), with the reverb tail kept at the end and peaks held below clipping. |
| Video output | MP4 with your cover and a moving waveform: 720×1280 (9:16), 1280×720 (16:9) or 1080×1080 (1:1). Free with an account. |
| Privacy | Processed entirely in your browser. Your audio and cover are never uploaded or stored by us. |
| Cost | Free. No watermark. |
How to Make a Slowed and Reverb Song
Three steps, no software to install, and your file never leaves your device.
- 1
Drop in your track
MP3, WAV, M4A, AAC, OGG or FLAC, up to 100 MB and 15 minutes. The song is decoded inside your browser tab — nothing is uploaded to a server.
- 2
Pick a preset, then fine-tune
Start from Slowed + Reverb (0.85× speed, 40% reverb) or TikTok Slowed, then drag Speed, Reverb, Room and Bass boost while it plays. Flip between Original and With effect to hear exactly what changed.
- 3
Download audio or a video
Save an MP3 or a WAV in seconds. Or add a cover image and export an MP4 with a moving waveform, sized 9:16 for TikTok and Reels, 16:9 for YouTube or 1:1 for Instagram.
Keep exploring CreateVision AI
One account, the full image and video generation workflow.
AI Rap Generator
Paste lyrics, pick a beat style, get two full rap tracks with vocals — 50 credits
AI Lyrics Generator
Free tool: song lyrics with a repeating chorus in Pop, R&B, Country, Rock, EDM or Ballad
AI Rap Lyrics Generator
Free tool: original verses and a hook in Trap, Drill, Boom Bap or Lo-Fi, ready to record
Ava — AI Image & Video Agent
Describe your idea; Ava picks the arena-ranked model, writes the prompt, and generates.
Make the Song, Then Slow It Down
AI Rap Generator
Turn your lyrics into a finished track with AI vocals, then bring it here for a slowed version.
AI Lyrics Generator
Free song lyrics with a chorus that repeats, in any genre.
AI Album Cover Generator
A cover for your slowed edit — then use it as the video background here.
AI Rap Video Generator
A lip-synced performer video for your track.
Frequently Asked Questions
Is this slowed and reverb generator free?
Yes. Previewing and downloading MP3 or WAV files is free with no sign-up and no watermark. Exporting an MP4 video is also free; it only needs a free account.
Is my song uploaded anywhere?
No. The audio is decoded, processed and encoded inside your browser tab. Nothing is sent to our servers, and closing the tab removes it.
Why does the song sound lower when I slow it down?
Speed and pitch move together here, the way a record sounds when you slow the turntable. That drop in pitch is a big part of the classic slowed sound. Speed it up past 1.0× and the pitch rises instead — that is nightcore.
What is the difference between slowed + reverb, daycore and nightcore?
Slowed + reverb lowers the speed (usually 0.80–0.87×) and adds a large, soft room. Daycore is also slowed but drier. Nightcore goes the other way: faster and higher, often around 1.25×. The table above lists the exact values each preset uses.
Which file formats work?
MP3, WAV, M4A, AAC, OGG and FLAC usually work; the limit is what your browser can decode. Files up to 100 MB and 15 minutes are supported. You can download the result as MP3 or WAV.
Can I post my slowed version on TikTok or YouTube?
The tool only changes the audio you give it; the rights to the original song stay with its owners. Platforms may detect copyrighted music in your upload, and using a remix commercially needs permission from the rights holders. Songs you made yourself — for example with our AI Rap Generator — are the simplest to share.
Does it work on my phone?
Previewing and MP3/WAV downloads run in current mobile browsers. Video export needs a browser that can encode video (recent Chrome, Edge or Safari) and is fastest on a computer.
How long does an export take?
A short clip renders in a few seconds. A full song as MP3 or WAV usually takes well under a minute on a laptop, and a full-length video takes a little longer because every frame is drawn in your browser.