Open Source C# User Interface (UI) Software

C# User Interface (UI) Software

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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.

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  • 1
    ContextMenuManager

    ContextMenuManager

    Windows tool to manage and customize right-click context menus

    ContextMenuManager is a Windows utility for enabling, disabling, renaming, icon-editing, deleting, and adding entries to the file/folder, New, Send To, Open With, IE, and Win+X context menus. It features a friendly UI, registry navigation, and multi-language support. Ideal for users seeking granular control over system context options on Windows 7 through 11.
    Downloads: 166 This Week
    Last Update:
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  • 2
    [OFFICIAL] tinyfiledialogs C C++ v3.22.1

    [OFFICIAL] tinyfiledialogs C C++ v3.22.1

    inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal

    one C/C++ file & header ==> 8 functions: - beep - tray notify popup - message & question - input & password - save file - open file(s) - select folder - color picker complements OpenGL Vulkan GLFW GLUT GLUI VTK SFML TGUI SDL Ogre Unity3d ION OpenCV CeGui MathGL GLM CPW GLOW Open3D ImGui MyGui GLT NGL STB Nuklear Fenster MicroUi & head-less programs NO INIT NO MAIN LOOP NO LINKING NO INCLUDE win (XP to 11) ASCII MBCS UTF-8 UTF-16 (wchar_t) - native dialogs osx/unix ASCII UTF-8 - applescript kdialog zenity shanty … ° SSH console / X forwarding / waypipe Wayland ° the dialogs can be forced into console mode ° curses dialogs via Dialog.exe/Dialog (disabled by default) C89/C23 & C++98/C++23 compliant VisualStudio MinGW GCC Clang TinyCC IntelCC BCC SunCC on Windows Mac Linux Bsd Solaris Minix Raspbian Flatpak Haiku bindings: VCPKG C# R Lua Rust Haskell Java AllegroBasic Fortran Pascal D JavaScript Kotlin click tab 'Files' for prototypes
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    5.0 out of 5 stars 10 Reviews
    Downloads: 180 This Week
    Last Update:
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  • 3

    NppMenuSearch

    Search Notepad++ menu items and preference settings

    Plugin development moved to GitHub: https://github.com/peter-frentrup/NppMenuSearch. Binaries continue to be served here. Notepad++ Menu Search Plugin This plugin adds a text field to the toolbar for searching menu items and preference dialog options. The plugin is inspired by a similar Visual Studio 2012 functionality. It is written in C# using the approach described in http://sourceforge.net/projects/notepad-plus/forums/forum/482781/topic/4404278
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    4.8 out of 5 stars 6 Reviews
    Downloads: 186 This Week
    Last Update:
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  • 4
    Git Extensions

    Git Extensions

    UI tool for managing git repositories

    Git Extensions is a standalone UI tool for managing Git repositories. It also integrates with Windows Explorer and Microsoft Visual Studio (2015/2017/2019). The full commit history can be browsed. Branches are shown using a graph which highlights commits that are included in the current revision. Explore the history of single files. Renamed and moved files are matched and shown in a single history. You do not need to mark files as renamed/moved. The system detects renamed files automatically. Find the last person that edited a specific part of a file. Double click on the line shows the commit and allows you to drill-down to other files. Version 2.x of Git Extensions runs on multiple platforms using Mono. The active community of Git Extensions is supporting Git Extensions since 2008.
    Downloads: 27 This Week
    Last Update:
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    UniGetUI

    UniGetUI

    The Graphical Interface for your package managers

    The main goal of this project is to create an intuitive GUI for the most common CLI package managers for Windows 10 and 11, such as WinGet, Scoop, Chocolatey, Pip, Npm, .NET Tool, and PowerShell Gallery. With this app, you can easily download, install, update, and uninstall any software published on the supported package managers.
    5.0 out of 5 stars 1 Review
    Downloads: 26 This Week
    Last Update:
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  • 6
    Windows Auto Dark Mode

    Windows Auto Dark Mode

    Automatically switches between the dark and light theme of Windows 10

    Switches between the dark and light theme of Windows at scheduled times. Tired of looking at dark content while the sun is shining brightly? But at night everything is suddenly too bright? Auto Dark Mode is the solution for you! Android, iOS and MacOS already offer the possibility of changing the system design based on the time of the day. We're bringing this feature to Windows on a larger scale. Auto Dark Mode helps you to be more productive. Because you shouldn't care about changing Windows settings several times a day. As soon as the sun goes down, we'll take care of your eyes. Because a simple design change would be too boring, Auto Dark Mode is packed with useful functions. For example, we can also change your desktop wallpaper or run custom scripts. Compatible with Windows 10 and Windows 11. Windows .Theme switch, to also change Accent Color, Slideshow and Mouse Cursor.
    5.0 out of 5 stars 1 Review
    Downloads: 24 This Week
    Last Update:
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  • 7
    AdvancedHMI
    Turn Visual Studio into a powerful HMI/SCADA development package by simply dragging and dropping, no coding required. DF1, Ethernet/IP for Allen Bradley PLC controllers, and many more drivers. Free
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    5.0 out of 5 stars 18 Reviews
    Downloads: 69 This Week
    Last Update:
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  • 8
    FlaUI

    FlaUI

    UI automation library for .Net

    FlaUI is a .NET library which helps with automated UI testing of Windows applications (Win32, WinForms, WPF, Store Apps,...). It is based on native UI Automation libraries from Microsoft and therefore kind of a wrapper around them. FlaUI wraps almost everything from the UI Automation libraries but also provides the native objects in case someone has a special need that is not covered (yet) by FlaUI. Some ideas are copied from the UIAComWrapper project or TestStack.White but rewritten from scratch to have a clean codebase. To use FlaUI, you need to reference the appropriate assemblies. So you should decide, if you want to use UIA2 or UIA3 and install the appropriate library from NuGet. You can of course always download the source and compile it yourself. The entry point is usually an application or the desktop so you get an automation element (like a the main window of the application). On this, you can then search sub-elements and interact with them.
    Downloads: 11 This Week
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  • 9
    Mica For Everyone

    Mica For Everyone

    Enable backdrop effects on the title bars of Win32 apps on Windows 11

    Mica For Everyone is a free, open-source Windows customization application that allows users to apply modern visual effects to the title bars, window frames, and backgrounds of supported desktop applications. Designed for Windows 11, the software extends Microsoft's Mica and other system backdrop materials to traditional Win32 applications that do not natively support these visual effects. Mica For Everyone uses Windows Desktop Window Manager APIs to request backdrop effects, helping create a more consistent and visually appealing appearance across desktop applications. Users can customize window appearance through a graphical interface or configuration file, with support for application-specific rules and different backdrop settings. The application enables users to experiment with Mica, Acrylic, and other supported Windows backdrop materials without modifying the applications themselves.
    Downloads: 9 This Week
    Last Update:
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  • 10
    Terminal.Gui

    Terminal.Gui

    Console-based user interface toolkit for .NET applications

    A toolkit for building console GUI apps for .NET, .NET Core, and Mono that works on Windows, the Mac, and Linux/Unix. In addition, a complete Xterm/Vt100 terminal emulator that you can embed is now part of XtermSharp, you just need to pull TerminalView.cs into your project. Works on Windows, Mac, and Linux. Terminal drivers for Curses, Windows Console, and the .NET Console mean Terminal.Gui works well on both color and monochrome terminals and has mouse support on terminal emulators that support it. Both keyboard and mouse input are supported, including limited support for drag & drop. Terminal.Gui supports both Absolute layout and an innovative UI layout system referred to as Computed Layout. Computed Layout makes it easy to layout controls relative to each other and enables dynamic console GUIs.
    Downloads: 9 This Week
    Last Update:
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  • 11
    ContextMenuForWindows11

    ContextMenuForWindows11

    Add Custom Context Menu For Windows11

    Custom Context Menu is an open-source Windows 11 utility that allows users to add personalized commands to the File Explorer context menu. It extends the right-click menu with custom actions for opening applications, processing files, and executing frequently used commands. Users can create menu configurations to launch programs with selected files or folders as arguments. The application supports workflows involving PowerShell scripts, external utilities, and development tools. Sample configurations demonstrate actions such as compressing archives, calculating file hashes, and opening files in specific editors. Menu definitions use JSON configurations, providing flexibility for creating and sharing custom commands. The project also provides configuration schemas and guidance for generating menu definitions with AI assistance. It helps users streamline repetitive operations by making specialized commands accessible directly from File Explorer.
    Downloads: 7 This Week
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  • 12
    Windows Presentation Foundation (WPF)

    Windows Presentation Foundation (WPF)

    Framework for building Windows desktop applications

    Windows Presentation Foundation (WPF) is a UI framework for building Windows desktop applications. WPF supports a broad set of application development features, including an application model, resources, controls, graphics, layout, data binding and documents. WPF uses the Extensible Application Markup Language (XAML) to provide a declarative model for application programming. WPF applications are based on a vector graphics architecture. This enables applications to look great on high DPI monitors, as they can be infinitely scaled. WPF also includes a flexible hosting model, which makes it straightforward to host a video in a button, for example. The visual designer provided in Visual Studio makes it easy to build WPF application, with drag-in-drop and/or direct editing of XAML markup. WinForms is another UI framework for building Windows desktop applications that is supported on .NET (6.0.x/5.0.x/3.1.x). WPF and WinForms applications only run on Windows.
    Downloads: 6 This Week
    Last Update:
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  • 13
    Avalonia

    Avalonia

    A cross-platform UI framework for .NET

    Avalonia is a cross-platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of Operating Systems such as Windows, Linux, macOS. Avalonia is mature and production-ready. We also have in beta release support for iOS, Android and in early stages support for browsers via WASM. Avalonia is open source, free to use, and always will be. Clone the source today to dig deeper. The free VS extension provides everything needed to start, including a XAML previewer. JetBrains deep understanding of Avalonia shines through with rich Rider and R# support. Deploy to the platforms you care about with ease. Leverage existing knowledge, code and packages to kickstart your project. Get the support your project needs with one of our commercial support agreements. Help you can count on. JetBrains delivers huge productivity gains for Avalonia developers.
    Downloads: 4 This Week
    Last Update:
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  • 14
    Radzen Blazor Components

    Radzen Blazor Components

    The home of the Radzen Blazor components

    A set of 60+ free and open source native Blazor UI controls. Radzen Blazor Components are open source and free for commercial use. You can install them from nuget or build your own copy from the source. The components are implemented in C# and take full advantage of the Blazor framework. They do not depend on or wrap existing JavaScript frameworks or libraries. Blazor Server and Blazor WebAssembly are fully supported. The first in the industry WYSIWYG Blazor design time canvas. Scaffolding complete CRUD applications from a database. Built-in security, authentication and authorization. Visual Studio Code and Professional support. Deployment to IIS and Azure. Dedicated support with 24 hour guaranteed response time.
    Downloads: 4 This Week
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  • 15
    SoftMaskForUGUI

    SoftMaskForUGUI

    Enhance Unity UI (uGUI) with advanced soft-masking features

    SoftMaskForUGUI is a Unity package that adds smooth and flexible masking capabilities to the standard uGUI system. It extends traditional masks by supporting partially transparent and softened mask boundaries. Text, Image, and RawImage components can be used as masking graphics. Developers can combine multiple sprites, SpriteAtlas assets, nested masks, and ScrollRect content. The package works with overlay, camera-space, and world-space rendering and includes support for custom shaders and TextMeshPro. Performance controls, inverse masking, visible-region raycast filtering, VR support, and inspector previews provide additional control for complex interfaces.
    Downloads: 4 This Week
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  • 16
    WinPaletter

    WinPaletter

    Advanced Windows Appearance Editor

    WinPaletter is a free, open-source Windows customization application designed for editing system colors, themes, and visual effects. It provides a graphical interface for personalizing modern and classic Windows interface elements. Users can modify accent colors, title bars, taskbars, visual styles, and legacy system color schemes. The software also supports changing wallpapers, cursors, icons, fonts, sounds, and screen savers. Additional tools customize Command Prompt, PowerShell, and Windows Terminal appearances. Its theme management system allows users to save, import, export, and share complete customization profiles. Real-time previews help users evaluate visual changes before applying them. Available as a portable application, WinPaletter supports Windows 7 through Windows 11, with additional compatibility methods for some older versions.
    Downloads: 4 This Week
    Last Update:
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  • 17
    SmartContextMenu

    SmartContextMenu

    SmartContextMenu adds a context menu to all windows in the system.

    This program is enhanced version of SmartSystemMenu. I hope it will be more convenient, because it supports all types of windows, including windows without a system menu. It should also be more stable and lightweight, as it does not use hooks in separate dll modules. To use the app, please, run the file SmartContextMenu.exe, move the mouse cursor to the necessary window and use the hotkeys “Ctrl + Right Mouse Button”. All the menu settings and hotkeys can be changed in the settings dialog of the system tray, as well as in the file SmartContextMenu.xml.
    Downloads: 87 This Week
    Last Update:
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  • 18
    .NET Multi-platform App UI

    .NET Multi-platform App UI

    .NET MAUI is the .NET Multi-platform App UI

    .NET Multi-platform App UI (.NET MAUI) is a cross-platform framework for creating mobile and desktop apps with C# and XAML. Using .NET MAUI, you can develop apps that can run on Android, iOS, iPadOS, macOS, and Windows from a single shared codebase. .NET Multi-platform App UI (.NET MAUI) is the evolution of Xamarin.Forms that expands capabilities beyond mobile Android and iOS into desktop apps for Windows and macOS. With .NET MAUI, you can build apps that perform great for any device that runs Windows, macOS, Android, & iOS from a single codebase. Coupled with Visual Studio productivity tools and emulators, .NET and Visual Studio significantly speed up the development process for building apps that target the widest possible set of devices. Use a single development stack that supports the best of breed solutions for all modern workloads with a unified SDK, base class libraries, and toolchain.
    Downloads: 3 This Week
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  • 19
    UIEffect

    UIEffect

    Apply rich UI effects directly from the Inspector or via code

    UIEffect is an open-source Unity package for applying advanced visual effects to user interface elements. It lets developers configure effects directly in the Inspector or control them through code. Multiple filters can be combined to create grayscale, blur, dissolve, color, transition, edge, shadow, and other visual treatments. The package optimizes builds by compiling only the shader variants that are actually used. It supports Unity render pipelines, VR environments, TextMeshPro, ShaderGraph, Timeline, and custom shaders. Additional components provide effect animation, replication across UI objects, and reusable runtime or editor presets.
    Downloads: 3 This Week
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  • 20
    Windows UI Library

    Windows UI Library

    Windows 10 native controls and Fluent styles for your applications

    WinUI is a user interface layer that contains modern controls and styles for building Windows apps. As the native UI layer in Windows it embodies Fluent Design, giving each Windows app the polished feel that customers expect. WinUI 2 is a library of controls that provides official native Microsoft UI controls and features for Windows UWP apps. WinUI 2 can be used in any Windows 10 UWP XAML app, or in a Xamarin.Forms app running on Windows 10 using native view embedding. WinUI 3 is the next generation of the WinUI framework. It dramatically expands WinUI into a full UX framework, making WinUI available for all types of Windows apps, from Win32 to UWP, for use as the UI layer. You can build new Windows apps using WinUI 3, which ships as a part of the Windows App SDK. The latest available stable release is the Windows App SDK 0.8 (previously called Project Reunion). With this release, you can ship production Desktop apps to the Microsoft Store.
    Downloads: 3 This Week
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  • 21
    Colora - Color Picker

    Colora - Color Picker

    Color converter, screen color picker and color palettes for Windows

    Colora is a useful small color converter and screen color picker tool for Windows. Colora makes it easy to pick colors from screen and save them. The color picker is tested to work with Windows 10 and DPI scaling. Picked colors can be configured and converted between various formats such as RGB, Hex, HSB, HSL and CMYK. The integrated palette tool then allows you to create color palettes from selected colors or the history of picked colors. Support: https://sourceforge.net/p/colora/discussion/ https://github.com/bluegrams/colora/issues
    4.7 out of 5 stars 3 Reviews
    Downloads: 15 This Week
    Last Update:
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  • 22
    Progress Telerik UI for UWP

    Progress Telerik UI for UWP

    Telerik UI for Universal Windows Platform

    This repo contains the source code for Telerik UI for Universal Windows Platform (UWP), which includes 20+ UI controls for developers building UWP applications. This is an open-source version of Telerik UI for Universal Windows Platform (UWP) by Progress. The project is community-supported on Stack Overflow. Commercial support is available at telerik.com/uwp where you'll find a supported commercial trial and pricing options. Please visit telerik.com for UI tools for ASP.NET, WPF, WinForms, or JavaScript. Common and device-family-specific APIs are bundled in Progress® Telerik® UI for UWP. Easily implement various functionalities in your UWP projects and create a single app package running on every device in the Windows 10 device family. Save development time with a wide range of out-of-the-box controls for various application scenarios. Manage data with the Grid or ListView components and create beautiful visualizations with the Chart, Gauges and BulletGraph controls.
    Downloads: 1 This Week
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  • 23
    Ultraleap Unity Plugin

    Ultraleap Unity Plugin

    Ultraleap SDK for Unity

    The Ultraleap Unity Plugin empowers developers to build Unity applications using Ultraleap's hand-tracking technology. It includes various assets, examples, and utilities that make it easy to design and build applications using hand tracking in XR projects. Due to the ever changing landscape of package dependencies in Unity we cannot guarantee compatibility with every plugin or variant of Unity, but aim to provide support for any LTS versions that are under continuous support from Unity. If you are sourcing the Unity Plugin directly from this repository, you may find that it does not function well with earlier versions of Unity. There are several ways you can consume this plugin. We've listed several recommended workflows for different users below. This list is by no means exhaustive, if you are aware of a workflow not listed that you think others would appreciate, please consider contributing!
    Downloads: 1 This Week
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  • 24
    The docking library for .Net Windows Forms development which mimics Visual Studio .Net.
    4.9 out of 5 stars 51 Reviews
    Downloads: 4 This Week
    Last Update:
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  • 25
    THIS PROJECT IS DEAD. For the real appcelerator project, please visit http://www.appcelerator.com
    Downloads: 17 This Week
    Last Update:
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