C# is a versatile, object-oriented programming language developed by Microsoft as part of the .NET framework. It is designed to be simple and easy to use, promoting strong type-checking and a rich set of libraries, making it ideal for developing a wide range of applications, from desktop to mobile to web-based solutions. C# supports modern programming paradigms, including asynchronous programming, which enhances performance in applications with high I/O operations. Its integration with the .NET ecosystem provides robust tools, such as Visual Studio, for debugging and deployment. Additionally, C# is continually evolving, with frequent updates that introduce new features and improvements, such as records, pattern matching, and nullable reference types, ensuring that developers can write clean, efficient, and maintainable code. Whether you're building enterprise-level software, video games with Unity, or cloud services, C# offers a powerful and flexible platform for application development.
View the most prominent open source C# 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☆37,779Updated this week
- A modern file manager that helps users organize their files and folders.☆36,432Updated this week
- 🔥LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解☆33,230Updated this week
- ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a ke…☆31,166Updated 3 weeks ago
- Windows Calculator: A simple yet powerful calculator that ships with Windows☆30,114Updated last week
- A Swiss Army knife for developers.☆28,209Updated last week
- Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology☆27,017Updated this week
- Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics☆23,832Updated 2 months ago
- Pulumi - Infrastructure as Code in any programming language 🚀☆22,576Updated this week
- 🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。☆21,388Updated this week
- A collection of awesome .NET core libraries, tools, frameworks and software☆20,269Updated 6 months ago
- A collection of awesome .NET libraries, tools, frameworks and software☆19,835Updated last month
- The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.☆19,326Updated this week
- Roadmap to becoming an ASP.NET Core developer in 2025☆19,014Updated 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
- ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structure…☆17,664Updated this week
- Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 9☆16,828Updated last week
- PEASS - Privilege Escalation Awesome Scripts SUITE (with colors)☆17,026Updated last week
- Bitwarden infrastructure/backend (API, database, Docker, etc).☆16,195Updated this week
- Free and open-source software that allows users to set animated desktop wallpapers and screensavers powered by WinUI 3.☆15,926Updated 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…☆15,331Updated last week
- Um guia extenso de informações com um vasto conteúdo de várias áreas para ajudar, agregar conhecimento e retirar dúvidas, nesse guia você…☆14,691Updated 7 months ago
- Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with be…☆13,271Updated this week
- Generate types and converters from JSON, Schema, and GraphQL☆12,790Updated last month
- 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…☆12,568Updated this week
- ASP.NET Boilerplate - Web Application Framework☆11,888Updated last week
- One framework for creating powerful cross-platform games.☆11,877Updated this week
- The official repo for the design of the C# programming language☆11,838Updated this week
- C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.☆11,761Updated this week
- Mono open source ECMA CLI, C# and .NET implementation.☆11,218Updated 6 months ago
- A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for cust…☆10,970Updated this week
- Powerful .NET library for benchmarking☆10,846Updated this week
- Apache Thrift☆10,655Updated this week
- A distributed transaction framework, supports workflow, saga, tcc, xa, 2-phase message, outbox patterns, supports many languages.☆10,326Updated last month
- Video game library manager with support for wide range of 3rd party libraries and game emulation support, providing one unified interface…☆10,229Updated last week
- Cross Platform Terminal UI toolkit for .NET☆9,935Updated this week
- xLua is a lua programming solution for C# ( Unity, .Net, Mono) , it supports android, ios, windows, linux, osx, etc.☆9,548Updated 3 months ago
- A rewrite of the old legacy software "depends.exe" in C# for Windows devs to troubleshoot dll load dependencies issues.☆9,591Updated 9 months ago