C#

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C# (pronounced “C sharp”) is a simple, modern, object-oriented, and type-safe programming language.

Its roots in the C family of languages makes C# immediately familiar to C, C++, and Java programmers.

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jellyfin /jellyfin

Star48.4k

The Free Software Media System - Server Backend & API

csharp dotnet hacktoberfest jellyfin

UpdatedFeb 7, 2026
C#

files-community /Files

Star41.7k

A modern file manager that helps users organize their files and folders.

git windows productivity files xaml csharp customization utilities dotnet windows-10 developer-tools file-manager fluent fluent-design alternatives power-user good-first-issue windows-11 winui winappsdk

UpdatedFeb 6, 2026
C#

doocs /leetcode

Star35.6k

🔥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

javascript java golang csharp algorithms leetcode cpp python3

UpdatedFeb 7, 2026
Java

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

productivity screenshot share ocr imgur csharp image-annotation dropbox color-picker ftp file-upload file-sharing url-shortener screen-recorder gif capture screen-capture region-capture gif-recorder sharex

UpdatedFeb 7, 2026
C#

DevToys-app /DevToys

Star30.9k

A Swiss Army knife for developers.

desktop-app syntax-highlighting windows macos linux typescript csharp cross-platform desktop windows-10 desktop-application extensible developer-tools fluent fluent-design blazor windows-11 winui mica

UpdatedJan 9, 2026
C#

microsoft /calculator

Star30.9k

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

windows xaml csharp cpp uwp windows-10 windows-11

UpdatedDec 24, 2025
C++

AvaloniaUI /Avalonia

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Star30k

Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology

android windows macos linux c-sharp ios xaml gui mobile browser xamarin csharp cross-platform dotnet mvvm wasm desktop avalonia app-framework avaloniaui

UpdatedFeb 7, 2026
C#

pulumi /pulumi

Star24.7k

Pulumi - Infrastructure as Code in any programming language 🚀

javascript python go kubernetes golang aws cloud typescript csharp serverless fsharp dotnet azure containers gcp iac cloud-computing infrastructure-as-code

UpdatedFeb 7, 2026
Go

mxgmn /WaveFunctionCollapse

Sponsor

Star24.7k

Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics

gamedev machine-learning algorithm csharp procedural-generation wfc

UpdatedNov 25, 2025
C#

BeyondDimension /SteamTools

Star24.4k

🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。

steam xaml csharp cross-platform dotnet dotnetcore wpf mvvm ios-app avalonia android-app avaloniaui linux-app windows-app crossplatform macos-app steamtools

UpdatedFeb 6, 2026
C#

quozd /awesome-dotnet

Star21.1k

A collection of awesome .NET libraries, tools, frameworks and software

awesome csharp fsharp dotnet clr awesome-list

UpdatedSep 16, 2025

thangchung /awesome-dotnet-core

Star21.1k

🐝 A collection of awesome .NET core libraries, tools, frameworks and software

microsoft list awesome csharp dotnet-core awesome-list

UpdatedApr 3, 2025
C#

dotnet /roslyn

Star20.2k

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

visual-studio csharp roslyn visual-basic hacktoberfest

UpdatedFeb 8, 2026
C#

MoienTajik /AspNetCore-Developer-Roadmap

Sponsor

Star19.5k

Roadmap to becoming an ASP.NET Core developer in 2026

roadmap csharp dotnet aspnetcore dotnet-core aspnet-core asp-net-core razor blazor

UpdatedJan 29, 2026

peass-ng /PEASS-ng

Star19.3k

PEASS - Privilege Escalation Awesome Scripts SUITE (with colors)

windows linux shell bash color unix csharp script enumeration batch batch-script one-liner exe peas privesc oneliner linpe linpeas winpeas

UpdatedFeb 4, 2026
C#

antlr /antlr4

Star18.7k

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

javascript python java dart swift golang php parse csharp parsing cpp parser-generator grammar antlr antlr4 language-recognition