WinForms

🏞 A fast, open-source, modern image viewer for 90+ formats – including WEBP, GIF, SVG, AVIF, JXL, HEIC and more – built for smooth browsing across Windows, macOS, and Linux.

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.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework

A composable, cross-platform MVVM framework for .NET inspired by functional reactive programming. It moves mutable state out of the user interface, keeps each feature's logic in one readable place, and makes applications easier to test. Supports WPF, WinForms, WinUI, .NET MAUI, Avalonia, Uno Platform, Blazor and Android.

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

🎞 mpv.net is a media player for Windows with a modern GUI.

Pokémon Save File Editor

Windows Forms is a .NET UI framework for building Windows desktop applications.

NanUI is an open source .NET project for developers who want to create Windows desktop applications with HTML, CSS and JavaScript.

Synchronize Codex session provider metadata across rollout files and SQLite state.

UI automation library for .Net

🎞 Video encoding GUI for Windows.

BizHawk is a multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

An open source fork of Windows Live Writer

ReaLTaiizor is a .NET WinForms control library that offers a wide range of components and is user-friendly and design-focused.

A Steam library categorizing tool.

C# Open-Source Winforms application for uploading files to VirusTotal

Provides a .NET wrapper for the Windows Task Scheduler. It aggregates the multiple versions, provides an editor and allows for localization.

A home for your business logic in any .NET application.

Windows tail program and log file analyzer.