Your Windows desktop does the job, but let’s be honest – it hasn’t surprised you in years. The taskbar sits where it always sits, the Start menu opens the way it always opens, and every laptop in the coffee shop looks the same. If that sameness is starting to itch, Seelen UI is the scratch you’ve been looking for.

This free tool rebuilds the look and feel of Windows so thoroughly that friends will ask which Linux distro you switched to. The best part? It never gets its hands dirty with your actual system – close it, and your familiar desktop snaps right back. Let’s walk through what it does and how to set it up.

So, What Exactly Is Seelen UI?

Think of Seelen UI as a slick outfit for Windows rather than surgery on its skeleton. It’s a fully customizable desktop environment for Windows 10 and 11, built on Rust and Tauri and powered by the Microsoft Edge WebView2 runtime. Instead of hacking core components the way older skinning tools did, it draws a fresh interface on top of Windows.

That overlay approach is the whole trick. Nothing important gets replaced, so there’s no risk of a broken boot or a corrupted profile. When you’re done experimenting, closing or uninstalling the app hands control straight back to the original Windows shell. It’s also open-source under the AGPL-3.0 licence and sitting at version 2.8.0 as of this writing, with an active developer (eythaann) shipping updates regularly.

Installing Seelen UI (Three Easy Routes)

Pick whichever method suits you. The Microsoft Store version is the most hands-off because it updates itself, but power users often prefer Winget.

Whichever route you take, the setup wizard is friendly and quick – just click through and let it finish. First launch drops you straight into the new look.

The Dock: Your Apps, macOS-Style

The first thing you’ll notice is the dock hugging the bottom of the screen – the same launcher-bar idea Mac and many Linux desktops use. It holds your pinned apps and even tucks a compact media player on the right so you can pause or skip a track without hunting for the window.

The dock stays put whenever no window has focus, and politely slides away when you’re working, reappearing on a mouse hover. Want to add your own shortcut? Right-click an empty spot on the dock, choose Pin custom file, and point it at any .lnk shortcut. Done.

If a proper floating dock is what pulled you here, you’ll want to browse our other dock for Windows guides once you’ve got Seelen UI running.

The Top Toolbar: A Status Bar That Actually Says Something

Across the very top, Seelen UI adds its Fancy Toolbar. On the left it shows your profile picture and username; next to that sits the title of whatever window is in focus. The date and time land in the middle, and the far right mirrors your system tray icons along with volume and Wi-Fi controls. While Seelen UI runs, the normal Windows taskbar and tray step aside so there’s no clutter or doubling-up.

Here’s where it gets fun: right-click the toolbar and open the Modules menu to bolt on live readouts. You can toggle CPU usage, memory usage, disk activity, network stats, a battery meter, a calendar, notifications and more. There’s even a Power menu that throws up a clean full-screen dialog – a bit like Kodi’s shutdown screen – for restart, log off or power down.

A Faster Way to Launch Apps

Seelen UI also rethinks how you open programs. Its app launcher takes cues from Rofi on Linux: summon it, start typing, and your app appears – quicker and tidier than the default Windows search. You can pin favourites to a home screen for one-click access, and even fine-tune each icon’s position and scale with a set of sliders if you’re feeling particular.

There’s a handy user menu too, giving you fast jumps to your common folders – Desktop, Downloads, Documents, Pictures and the rest – without opening File Explorer at all. Speaking of which, if you’re rethinking your whole workflow, our roundup of the best File Explorer alternatives for 2026 pairs well with this setup.

Themes, Wallpapers & the Resources Hub

The real playground is the Resources section inside Settings. It’s a one-stop shop for Themes, Icon Packs, Wallpapers, Widgets and Plugins (a Sound Packs category is marked “coming soon”). Everything installs with a click, and there’s a healthy community library to pull from.

The wallpaper support alone is worth the download. Beyond ordinary images, Seelen UI can run live wallpapers – animated scenes, video backgrounds and music-reactive canvases – and even set a different one per monitor or per virtual desktop. The Wallpaper Manager can rotate them on a timer or shuffle them randomly, and it can pause playback when a window covers most of the screen to save resources.

Dialing In the Settings

You don’t need to touch config files to get a great result, but the General tab is where the essentials live. From there you can set Seelen UI to run at startup, pick your language and date format, choose an accent colour, and toggle hardware acceleration. There’s also a “Suspend widgets on Game Mode” switch that frees up CPU and memory the moment Windows Game Mode kicks in – a thoughtful touch for gamers – plus battery-aware optimizations that ease off when you’re unplugged.

Deeper in, the Dock/Taskbar, Fancy Toolbar and Window Manager tabs let you fine-tune width, position, auto-hide timing and layouts. And under Settings by Application, you can tell Seelen UI to leave specific programs alone – useful for tools like password managers or games that you’d rather keep floating.

How to Exit Seelen UI (The One Bit That Trips People Up)

Quitting Seelen UI isn’t obvious, and that’s exactly why folks get stuck. There’s no big “Close” button on the desktop. Here’s the exact path:

The moment you do, the standard Windows taskbar and tray return as if nothing ever happened. That’s the beauty of the overlay design – no cleanup, no leftovers.

Is It Safe, and Will It Slow Things Down?

On both counts, the answer is reassuring. Because Seelen UI never modifies Windows system files, there’s nothing to break and nothing to undo manually – uninstalling wipes it clean (your saved settings stay in %APPDATA% in case you reinstall). It’s open-source, so the code is out in the open for anyone to check.

As for performance, it’s surprisingly light. In Task Manager, the whole app used around 85 MB of RAM across its processes during testing – a rounding error next to a browser with a few tabs open. Between that, the Game Mode suspension and the battery optimizations, it’s built to stay out of your way.

If you’re the kind of person who likes a tidy, optimized machine, it slots right in with our other Windows tips and tools – and once you’re done experimenting, our guide on completely uninstalling programs on Windows 11 is there if you decide to move on.

Frequently Asked Questions

Tried Seelen UI and built a desktop you’re proud of? Tell us your favourite theme in the comments – and browse more free downloads on our Free Apps page.