Windows scrolling has always felt choppy compared to macOS. When others started charging annual subscriptions for a basic utility, I built the open alternative. Smoothie Scroll is built by a user, for users.
Why Smoothie Scroll?
True fluidity + Inertia
Momentum-based scrolling that feels native and responsive. Real macOS-style inertia, rare on Windows.
Ultra lightweight
Minimal resource usage. Runs silently in your system tray.
100% free core
No ads, no tracking, no subscriptions for the core experience.
Custom control
Exclude specific apps or games with a single click.
How it works
Every click of your mouse wheel tells Windows to jump the page down three lines and stop. That is the whole reason scrolling on a PC feels choppy. It is a run of small jumps rather than actual movement, and once you notice it you cannot stop noticing it.
Smoothie Scroll catches each of those clicks before the app underneath ever sees it, and turns it into motion instead. One slow click nudges the page along. Spin the wheel quickly and the clicks pile onto each other into a long glide that keeps coasting after you let go, the way a trackpad behaves on a Mac and Windows never has on its own. The slowdown at the end is timed rather than counted out in frames, so it feels the same on a basic office monitor and on a 240Hz gaming panel.
It also scrolls whatever your mouse is hovering over, not whatever you clicked on last. Park the pointer on a window sitting behind the one you are working in, spin the wheel, and that window scrolls. You never have to click into it first.
Nothing about this touches the programs you use. Smoothie Scroll installs no driver and changes nothing deep in Windows. It is one small app sitting in your tray, and closing it puts scrolling back exactly the way it was.
How it compares
| Windows default | macOS trackpad | Smoothie Scroll | |
|---|---|---|---|
| Motion | Instant jump, three lines a notch | Continuous, follows your fingers | Continuous glide on every notch |
| Coasts after you stop | No | Yes | Yes |
| Reacts to how fast you scroll | No, every notch travels the same | Yes | Yes, quick flicks travel further |
| Hardware | Any mouse | Apple trackpad or Magic Mouse | Any mouse or trackball |
| What you can tune | Lines per notch | Scrolling speed | Speed, acceleration, inertia (PRO) |
| Per-app behaviour | One setting for everything | One setting for everything | Own speed or exclusion per app (PRO) |
Where it helps
Reading and research
Long articles, PDFs and documentation stop reading like a flipbook. The page keeps moving after you let go of the wheel, so a long page takes a few flicks instead of twenty notches.
Design and creative tools
Panning a Figma board or a Photoshop canvas gets the same glide. Ctrl+scroll zoom is left alone by default, so your app keeps handling zoom exactly as before.
Trackballs and free-spin wheels
A Kensington Orbit or a free-spinning wheel fires a burst of notches at once. Smoothie Scroll stacks that burst into one long, decaying glide instead of a pile of jumps.
Games
Most games read mouse input directly and ignore Smoothie Scroll. If one of them does not, add it to the exclusion list and it goes back to raw wheel input.
The Smoothie Scroll FAQ covers compatibility, activation, privacy and that SmartScreen warning.
What supporters say
Smoothie Scroll launched on Ko-fi in 2025. Here's what early supporters had to say.
Thank you for solving the most annoying thing that Windows just can't figure out.
Awesome product, exactly what I was looking for. Even more awesome? The pricing.
Thanks for making my Kensington Orbit finally feel natural!
I've been looking for you for soooo long, and finally my suffering is over!
Smoothie Scroll PRO is so fire.
Clean and functional software, ty bro.
Free forever. PRO if you want more.
The free version stays free. A one-time $10 donation unlocks a lifetime PRO license with every advanced customization and all future updates.
PRO
$10 · one-time, lifetime
- Advanced physics: fine-tune smoothness and sensitivity.
- Inertial control: dial in macOS-style momentum, acceleration, and inertia.
- Profiles: presets like Ultra Glide or Tactile.
- App management: per-app custom scroll speeds.
- Multi-device: activate on up to 3 PCs.
- Lifetime updates: all future PRO features included.
Free
Forever free
- Core smooth scrolling engine.
- Optimized defaults.
- App exclusion list.
- No telemetry or tracking.
Need help? Read the frequently asked questions · Contact support