Browse free open source C# User Interface (UI) Software and projects below. Use the toggles on the left to filter open source C# User Interface (UI) Software by OS, license, language, programming language, and project status.
Windows tool to manage and customize right-click context menus
inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal
Search Notepad++ menu items and preference settings
UI tool for managing git repositories
The Graphical Interface for your package managers
Automatically switches between the dark and light theme of Windows 10
UI automation library for .Net
Enable backdrop effects on the title bars of Win32 apps on Windows 11
Console-based user interface toolkit for .NET applications
Add Custom Context Menu For Windows11
Framework for building Windows desktop applications
A cross-platform UI framework for .NET
The home of the Radzen Blazor components
Enhance Unity UI (uGUI) with advanced soft-masking features
Advanced Windows Appearance Editor
SmartContextMenu adds a context menu to all windows in the system.
.NET MAUI is the .NET Multi-platform App UI
Apply rich UI effects directly from the Inspector or via code
Windows 10 native controls and Fluent styles for your applications
Color converter, screen color picker and color palettes for Windows
Telerik UI for Universal Windows Platform
Ultraleap SDK for Unity