Turn any song into a slowed + reverb edit in seconds. Upload a track, slow it down, wash it in reverb and echo, warm up the tone, and download a high-quality WAV — all in your browser. Nothing is uploaded to a server, there is no signup, and it is completely free.
This slowed reverb maker gives you the same moves producers use for TikTok edits, YouTube “slowed + reverb” uploads and lo-fi remixes: speed, an independent pitch transpose, reverb size, echo, bass boost and a warmth (high-cut) control, plus one-tap presets for nightcore, daycore, chopped & screwed and vaporwave.
Slowed + Reverb Generator
Upload a song, dial in the slow-down, reverb, echo and tone — and transpose the pitch independently if you want — preview it live, then download your slowed + reverb version as a WAV. Everything runs in your browser — nothing is uploaded.
Slowing a track below 1× lowers its pitch too — that classic “slowed” feel (and speeding it up gives the higher-pitched nightcore sound). The Transpose control shifts the pitch on its own, independent of the speed, so you can slow a track down but nudge the pitch back up, or move it to a new key without changing the tempo (it takes a few seconds to process). Reverb and echo are generated in real time from a synthesized impulse response, and warmth rolls off the highs for a lo-fi / vaporwave character. Processing and export happen entirely on your device, so your audio never leaves your browser.
How to make a slowed + reverb song
- Upload your track. Drag an MP3, WAV, M4A, OGG or FLAC onto the box (up to ~50 MB). It is decoded on your device — your audio never leaves your browser.
- Slow it down. Drop the speed to around 0.80× for the classic slowed feel. Lowering the speed also lowers the pitch, which is exactly what gives slowed edits their deep, dreamy character.
- Or keep the pitch (Transpose). Slowing lowers the pitch by default; if you want to slow the tempo without the deep, detuned sound — or move the song to a new key — drag the Transpose slider to shift the pitch on its own in 0.1-semitone steps.
- Add reverb and space. Push the reverb amount up and pick a room size — a hall or cathedral setting gives that wide, washed-out tail.
- Shape the vibe. Add a little echo for movement, boost the bass for weight, and pull the warmth (high-cut) down for a muffled lo-fi / vaporwave tone.
- Preview, then export. Press play to hear it live, tweak to taste, and hit Download WAV to save your finished edit.
Slowed + reverb edit recipes
Not sure where to start? Tap a preset, then fine-tune. Each one is a different way to bend the mood of the same song:
- Slowed + Reverb — a moderate slow-down with roomy reverb. The default aesthetic edit for TikTok and YouTube.
- Daycore (anti-nightcore) — slower and lower-pitched for a darker, heavier take on a hook.
- Nightcore — sped up and pitched higher for a brighter, hyper edit.
- Chopped & Screwed — heavily slowed with extra bass and echo, in the Houston hip-hop tradition.
- Vaporwave / Lo-fi — slowed, drenched in reverb, with the highs rolled off for that hazy, nostalgic sound.
- Slowed only — the slow-down with no reverb, when you just want the tempo and pitch change.
Change the pitch independently
By default, slowing a song down also lowers its pitch — that is the classic slowed sound. The Transpose control breaks that link: it shifts the pitch on its own, in fine 0.1-semitone steps, without touching the tempo or the reverb. Slow a track to 0.8× but pull the pitch back up so the vocals don’t sound too deep, drop a nightcore edit’s pitch so it isn’t shrill, or move a whole track to a new key while keeping the slowed timing. It uses the same phase-vocoder engine as our Pitch Shifter, so a full song takes a few seconds to process.
Free, private, and fully in your browser
Unlike most online editors, this tool does all of its processing locally using the Web Audio API. Your file is never uploaded, there is no account to create, and there is no watermark on the export. You get a clean, high-quality WAV of your slowed reverb edit every time.
Level up your edits
Great slowed + reverb edits start with a clean source and are best judged on gear that shows the low end honestly. If you are recording or mixing your own music, our guides to studio monitors and studio headphones will help you hear reverb tails and bass the way they really sit.
Want to go from remixing other people’s songs to releasing your own? Create original AI songs with Solmi — generate a track, then run it through this editor for a slowed + reverb version that is 100% yours.
Frequently asked questions
What is a slowed + reverb generator?
It is a tool that takes a normal song and re-creates the popular “slowed + reverb” aesthetic: the track is slowed down (which also lowers the pitch) and given a big, spacious reverb. This editor lets you do that in your browser and download the result as a WAV.
How do I make a slowed and reverb song for free?
Upload your track above, lower the speed to about 0.80×, raise the reverb, and press play to preview. When it sounds right, click Download WAV. It is free, needs no signup, and never uploads your audio.
Can I slow a song down without changing the pitch?
Yes. Slow the speed as usual, then raise the Transpose control to bring the pitch back up to where it started — the tempo stays slow while the pitch returns to normal. Transpose shifts pitch independently in 0.1-semitone steps.
How do I change the pitch without changing the speed?
Leave the speed at 1.0× and drag the Transpose slider up or down. It moves the pitch on its own without affecting the tempo — the same idea as a dedicated pitch shifter.
What is nightcore?
Nightcore is the opposite of a slowed edit: the song is sped up and pitched higher for a brighter, more energetic sound. Tap the Nightcore preset, or push the speed above 1.0× yourself.
What is daycore (anti-nightcore)?
Daycore slows the song down and lowers the pitch for a darker, heavier version of the same hook. It is essentially the slowed half of the slowed + reverb sound without necessarily adding much reverb.
What are chopped and screwed remixes?
“Chopped and screwed” is a Houston hip-hop style that heavily slows a track and adds weight and echo. Use the Chopped & Screwed preset as a starting point, then push the bass and echo further.
Can I make vaporwave or lo-fi edits with this tool?
Yes. Slow the track down, add plenty of reverb, and pull the warmth (high-cut) control down to roll off the highs. That hazy, muffled tone is the core of the vaporwave and lo-fi aesthetic.
Does this upload my audio to a server?
No. All decoding, effects and exporting happen on your device using the Web Audio API. Your file never leaves your browser, which is why it works even with the tab offline once loaded.
Is the export good quality?
Yes — the tool renders and downloads a full-resolution WAV at your file’s native sample rate, with no watermark and no quality cap.
What audio formats are supported?
Any format your browser can decode — typically MP3, WAV, M4A/AAC, OGG and FLAC. The export is always a WAV.
Does it work on mobile?
Yes. It runs in mobile browsers, though very large files may process more slowly on older phones. For long tracks, a laptop or desktop is smoother.
Is a slowed + reverb edit copyright-safe to post?
Slowing and adding reverb does not remove the original copyright. If you post an edit of someone else’s song, the usual platform rules (Content ID, takedowns, monetisation splits) still apply. For fully clear releases, start from music you made or generated yourself.
Is this tool really free?
Completely. There is no signup, no watermark, no export limit and no upsell required to get your WAV.