Seelen UI

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Score6.6

Rank#6 of 39

PriceFree

Free planYes

Runs onWindows

Summary

Seelen UI is a free customization layer for Windows 10 and Windows 11 that helps organize windows and reshape the desktop. Its automatic tiling manager offers BSPWM, Tall, Wide, and Grid layouts, as well as float, stack, monocle, and per-app rules. The desktop shell includes a dock, scriptable toolbar, start menu, custom Alt+Tab switcher, and window previews. For backgrounds, it supports MP4 and WebM video, interactive HTML/CSS/JS, music-synced visuals, and collections assigned by monitor or workspace. Built-in widgets cover media, time and calendar, system and network monitoring, notifications, Wi-Fi, and Bluetooth. The media module supports pause, resume, and track skipping with most music players. Seelen says it adds a customization layer rather than replacing the Windows desktop or modifying system files. Documentation covers themes, widgets, plugins, and development, while community help is available through Discord, repositories, and other channels. Modified, debloated, or custom Windows versions are not recommended because disabled services or removed components can cause errors or malfunction.

Who it is for

Seelen UI suits Windows users who want to tailor window layouts, desktop controls, wallpapers, and widgets. Its stated audience includes artists, designers, professionals, and curious users.

What is good

Free desktop customization suite
Four automatic tiling layouts
Supports video and interactive wallpapers
Widgets include system monitoring and notifications
Does not modify Windows system files

What to know first

Designed for Windows 10 and Windows 11
Modified or debloated Windows versions are not recommended

Verdict

Seelen UI brings window management, desktop controls, wallpapers, and widgets into one customization layer. Avoid it on modified Windows setups where removed components or disabled services may cause problems.

Seelen UI plans and pricing

All plans

Free Free complete desktop customization suite seelen.io · 1 Oct 2026

Compared on start menu customization software

Free plan: Yesseelen.io
Supported Windows: bothseelen.io
Replacement mode: shell_replacementseelen.io
Start button controls: Yesseelen.io
Custom search: Yesseelen.io
Taskbar controls: extensiveseelen.io

Facts

Purpose: Seelen UI is a customizable Windows desktop environment for organizing windows, customizing the interface, and optimizing workflow.seelen.io · 1 Oct 2026
Live wallpapers: It supports MP4 and WebM video wallpapers, interactive HTML/CSS/JS wallpapers, music-synced backgrounds, and per-monitor or per-workspace collections.seelen.io · 1 Oct 2026
Window manager: The automatic tiling window manager provides BSPWM, Tall, Wide, and Grid layouts plus float, stack, monocle, and per-app rules.seelen.io · 1 Oct 2026
Desktop shell: Seelen UI provides a dock, scriptable toolbar, start menu, custom Alt+Tab switcher, and window previews.seelen.io · 1 Oct 2026
Widgets: Built-in widgets include media controls, a clock and calendar, CPU/RAM/network/disk monitoring, notifications, Wi-Fi, and Bluetooth.seelen.io · 1 Oct 2026
Media integration: Its integrated media module is compatible with most music players and supports pause, resume, and track skipping.seelen.io · 1 Oct 2026
Extensibility: The official documentation covers themes, widgets, plugins, resource guidelines, and a developer reference for building on Seelen UI.seelen.io · 1 Oct 2026
Community support: Seelen directs users to its Discord community, repositories, and channels for support and shared solutions.seelen.io · 1 Oct 2026
Windows compatibility: Seelen UI is designed for Windows 10 and Windows 11.seelen.io · 1 Oct 2026
System changes: Seelen UI does not modify Windows system files and adds a customization layer instead of fully replacing the Windows desktop.seelen.io · 1 Oct 2026
Known limitation: Modified, debloated, or custom Windows versions are not recommended because disabled services or removed components can cause errors or malfunction.seelen.io · 1 Oct 2026
Privacy commitment: Seelen says it does not sell user data, does not use dark patterns, and designs privacy into its products.seelen.io · 1 Oct 2026
Open source: Seelen says 80% of its software is open-source and that its tools are generally modular and open-source.seelen.io · 1 Oct 2026
Target users: Seelen says its solutions are built for artists, designers, professionals, and curious users.seelen.io · 1 Oct 2026