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Seelen UI

Seelen UI is a free, open-source desktop utility for Windows. The Fully Customizable Desktop Environment for Windows 10/11. It has 18,254 GitHub stars and is released under the AGPL-3.0 license. Its source code is on GitHub at eythaann/Seelen-UI.

github.com/eythaann/Seelen-UI (opens in a new tab)

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About Seelen UI

Fully Customizable Desktop Environment for Windows Seelen UI is a full desktop environment replacement for Windows — not a theme pack, not a skin, but a complete rethink of how your desktop looks and works. Every element you interact with daily — the taskbar, the dock, the app launcher, the window manager, the notification flyouts, the virtual desktops — can be replaced, restyled, and extended to exactly match your vision and workflow.

Install Seelen UI

Package names found in the project's README. Each links to its package page so you can check the publisher first.

winget (Windows)
winget install Seelen.SeelenUI

Package page (opens in a new tab)

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FAQ

Seelen UI FAQ

Still curious? Email info@appsgit.com.

Is Seelen UI free and open source?

Yes. Seelen UI's source code is public on GitHub under the AGPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Seelen UI?

winget: winget install Seelen.SeelenUI. The commands are on this page. Installers are also on its GitHub Releases page (latest: v2.8.10).

Is Seelen UI still maintained?

The repository's most recent commit was on Oct 27, 2026. appsgit only lists apps whose repository had a commit in the last six months.