.NET is a versatile and powerful open-source developer platform created by Microsoft that supports building applications for various environments, including web, mobile, desktop, gaming, and IoT. Its core framework facilitates the development of applications using languages like C#, F#, and Visual Basic, offering robust libraries and runtime components that enhance productivity and performance. Application developers benefit from .NET’s ability to streamline cross-platform development with its unification of platforms through .NET Core, ensuring that their applications can run seamlessly on major operating systems such as Windows, macOS, and Linux. Additionally, tools like Visual Studio and Visual Studio Code optimize the development workflow with advanced debugging, testing, and deployment capabilities. .NET’s strong community support, continuous updates, and integration with cloud services make it a reliable choice for developers aiming to build secure, scalable, and efficient applications.
View the most prominent open source .NET projects in the list below. Click on a specific project to view its alternative or complementary packages. Make comparisons and find the best package for your app.
- The Free Software Media System - Server Backend & API☆37,719Updated this week
- ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.☆36,219Updated this week
- A modern file manager that helps users organize their files and folders.☆36,432Updated this week
- A browser automation framework and ecosystem.☆31,797Updated this week
- Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology☆26,996Updated this week
- .NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.☆22,503Updated this week
- Pulumi - Infrastructure as Code in any programming language 🚀☆22,556Updated this week
- .NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!☆22,447Updated this week
- .NET news, announcements, release notes, and more!☆21,206Updated this week
- 🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。☆21,349Updated this week
- A collection of awesome .NET libraries, tools, frameworks and software☆19,822Updated last month
- Roadmap to becoming an ASP.NET Core developer in 2025☆19,010Updated 2 months ago
- This repo is used for servicing PR's for .NET Core 2.1 and 3.1. Please visit us at https://github.com/dotnet/runtime☆17,640Updated 2 years ago
- Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 9☆16,828Updated this week
- A framework for building native Windows apps with React.☆16,631Updated this week
- Bitwarden infrastructure/backend (API, database, Docker, etc).☆16,195Updated this week
- .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.☆15,963Updated this week
- Amplication brings order to the chaos of large-scale software development by creating Golden Paths for developers - streamlined workflows…☆15,561Updated this week
- Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and Open…☆15,316Updated this week
- Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker…☆13,645Updated this week
- CoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.☆12,804Updated 2 years ago
- A wrapper executable that can run any executable as a Windows service, in a permissive license.☆12,668Updated 10 months ago
- QuestPDF is a modern open-source .NET library for PDF document generation. Offering comprehensive layout engine powered by concise and di…☆12,552Updated this week
- ASP.NET Boilerplate - Web Application Framework☆11,888Updated last week
- One framework for creating powerful cross-platform games.☆11,868Updated this week
- C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.☆11,753Updated this week
- This is a collection of tutorials for learning how to use Docker with various tools. Contributions welcome.☆11,593Updated last year
- Full Modular Monolith application with Domain-Driven Design approach.☆11,679Updated 9 months ago
- Mono open source ECMA CLI, C# and .NET implementation.☆11,210Updated 6 months ago
- Powerful .NET library for benchmarking☆10,846Updated this week
- Cloud Native application framework for .NET☆10,291Updated this week
- Capture Screen, Audio, Cursor, Mouse Clicks and Keystrokes☆10,061Updated last year
- Cross Platform Terminal UI toolkit for .NET☆9,935Updated this week
- Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, a…☆9,866Updated this week
- A .NET library that makes it easier to create beautiful console applications.☆9,884Updated this week
- An easy way to perform background job processing in .NET and .NET Core applications. No Windows Service or separate process required☆9,600Updated 3 weeks ago
- ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.☆9,522Updated this week
- Open-source platform for building cross-platform native Mobile, Web, Desktop and Embedded apps quickly. Create rich, C#/XAML, single-cod…☆9,255Updated this week
- ML.NET is an open source and cross-platform machine learning framework for .NET.☆9,119Updated this week