RoundedTB is a free Windows taskbar customization utility that lets you add rounded corners, adjustable margins, and segmented layouts to the standard Windows taskbar. Instead of replacing Windows Explorer or installing a complete desktop theme, RoundedTB modifies the visual shape and spacing of the existing taskbar. It is a popular choice for users who want to create a cleaner Windows 11 desktop, a floating taskbar design, or a macOS-style dock appearance with minimal system modification.

With RoundedTB, users can manually configure the taskbar margin and corner radius to match their wallpaper, screen resolution, and preferred desktop layout. The margin control removes a selected number of pixels from the sides of the taskbar, creating visible space around it, while the corner-radius setting determines how rounded the taskbar edges appear. These customization options make it easy to build a compact, modern, and personalized Windows taskbar without using complicated skinning software.

The advanced settings in RoundedTB include Independent Margins, allowing separate spacing values to be applied to each side of the taskbar. Users can also enter negative margin values to hide selected rounded edges or visually attach the taskbar to a particular side of the display. This additional control is useful for users creating custom Windows desktop layouts, ultrawide monitor setups, minimalist workspaces, or taskbar designs that need more precise positioning.

One of the application’s best-known features is Dynamic Mode for Windows 11, which automatically resizes the taskbar according to the number of visible icons and gives it a dock-like appearance. RoundedTB also provides a simplified Split Mode for Windows 10, which can separate the primary taskbar area from the system tray after additional configuration. Other available options include showing or hiding the system tray, filling the taskbar when a window is maximized, displaying the tray only when hovered, and opening the settings panel again through the Start menu.

Download RoundedTB for Windows 11 and Windows 10

RoundedTB can also provide limited compatibility with TranslucentTB, allowing users to combine rounded taskbar edges with transparent, acrylic, or blurred taskbar effects. However, the project documentation describes this integration as experimental and specifically references compatibility with older TranslucentTB versions. Features such as automatic taskbar hiding, Dynamic Mode, secondary-monitor support, and third-party taskbar modification may produce flickering, incorrect sizing, or other visual issues on some Windows configurations.

Users should understand that RoundedTB is an older utility and may not work correctly with every recent Windows 11 update. The software makes no permanent system changes, so closing RoundedTB or restarting Windows Explorer should normally remove its taskbar modifications. Download RoundedTB from the project’s official GitHub releases page, extract the downloaded archive, and launch RoundedTB.exe to test it. Because Windows taskbar behavior continues to change through system updates, creating a restore point and avoiding unofficial modified installers is recommended when using this legacy Windows personalization software.