Universal Windows Platform

Windows Calculator: A simple yet powerful calculator that ships with Windows

Building the best File Manager for Windows

A framework for building native Windows apps with React.

A Swiss Army knife for developers.

An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.

Build Mobile, Desktop and WebAssembly apps with C# and XAML. Today. Open source and professionally supported.

A modern, lightweight text editor with a minimalist design.

适用于新系统UI的哔哩

NLog - Advanced and Structured Logging for Various .NET Platforms

Simple, flexible, interactive & powerful charts, maps and gauges for .Net

The Windows Community Toolkit is a collection of helpers, extensions, and custom controls. It simplifies and demonstrates common developer tasks building .NET apps with UWP and the Windows App SDK / WinUI 3 for Windows 10 and Windows 11. The toolkit is part of the .NET Foundation.

Windows UI Library: the latest Windows 10 native controls and Fluent styles for your applications

A small C library for building user interfaces with C, XML and CSS.

The .NET MVVM framework for cross-platform solutions, including Xamarin.iOS, Xamarin.Android, Windows and Mac.

MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

Social share, sending simple data to other apps.

A small, yet powerful framework, designed for building applications across all XAML platforms. Its strong support for MV* patterns will enable you to build your solution quickly, without the need to sacrifice code quality or testability.

Telegram for Windows

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Automatic directory listing parsing, File hashing/checksums, File permissions/CHMOD, FTP proxies, FXP support, UTF-8 support, Async/await support, Powershell support and more. Written entirely in C#.

Template Studio accelerates the creation of new WinUI 3, WPF, and UWP apps using a wizard-based experience.