Slowed + Reverb
Drop the speed and drench it in convolution reverb for that dreamy, cavernous edit everyone loves.
Browser extension · Chrome & Edge
Turn any track into a slowed + reverb remix — instantly.
One click on the toolbar and the audio playing in your tab is transformed: slow it down with lush reverb, speed it into nightcore, or dial in your own sound. Works on YouTube, SoundCloud, Bandcamp and more. No downloads, no editing software.
- Real-time, on whatever's already playing
- Slow it, speed it, drench it in reverb
- Save the sounds you love as presets
4remix styles
5+built-in presets
∞custom presets
3themes
Everything you need to flip a track
A full mixer in a popup. Tweak while it plays and hear every change live.
Sped Up & Nightcore
Push past 1× for an energetic sped-up cut, or let the pitch ride along for full nightcore.
Daycore
Slowed and pitched down with a lighter reverb — mellow, hazy, late-night listening.
Live sliders
Speed, reverb, and bass — drag any of them and the sound changes in real time as you listen.
Preserve pitch
Toggle between a clean tempo change and the classic pitched slowed/nightcore sound.
Custom presets
Dial in a vibe, save it, and recall it on any tab with a single tap. Manage them from the options page.
Presets to start from
One tap to a sound. Then make it yours.
Normal
The track, untouched.
Slowed + Reverb
Dreamy and cavernous — made for late nights.
Daycore
Mellow and hazy, slowed with a softer glow.
Nightcore
Bright, fast, high-energy.
Sped Up
Quicker, with the pitch kept clean.
Hear the vibe
A tiny in-browser demo synthesises a chord so you can feel what reverb and pitch do — no track upload needed. (Your real tracks sound far better.)
Lower the pitch for that slowed feel; raise it for nightcore. Add reverb to taste.
Add it to your browser
One click from the Chrome Web Store, with automatic updates. Works in Chrome and Edge.
Add to Chrome — freeThe store link drops in here once the listing is live.
Questions
Does it work on YouTube?
Yes — and on most sites that play <audio> or
<video> (SoundCloud, Bandcamp, and others). Some sites with
locked-down cross-origin audio may only allow speed control.
Is my audio uploaded anywhere?
No. Everything happens locally in your browser — nothing is uploaded, recorded, or sent to a server. Your settings and presets stay on your device.
Can I save my own sound?
Yes. Set the sliders the way you like, hit Save preset, and recall it on any tab. Manage saved presets from the options page.
What's the difference between slowed and daycore?
Both slow the track down. "Slowed + Reverb" leans into heavier reverb; "Daycore" is a touch slower with a lighter, mellower reverb. Nightcore is the opposite — sped up and pitched up.
Does it download the remixed file?
This version is a real-time listening effect, not an exporter — it reshapes what's playing rather than saving a new file. Exporting is a natural next feature.