explaingit

Popular C# repositories on GitHub, each explained for non-coders — what it does, its tech stack, and how to run it.

• microsoft/powertoysMicrosoft PowerToys is a free bundle of 30-plus Windows utilities that add missing features like custom window
• 2dust/v2raynA Windows, Linux, and macOS app for managing proxy connections with a point-and-click interface. Supports Shad
• shadowsocks/shadowsocks-windowsA Windows desktop app that routes your internet traffic through a remote server to bypass censorship and acces
• powershell/powershellPowerShell 7 is Microsoft's open-source, cross-platform scripting shell that passes structured objects between
• jellyfin/jellyfinJellyfin is a free, self-hosted media server that lets you stream your own movies, TV shows, and music to any
• files-community/filesA modern, customizable file manager for Windows built with C# and .NET, featuring a polished Fluent design int
• dotnet/aspnetcoreASP.NET Core is Microsoft's open-source web framework for building APIs, server-rendered web apps, and real-ti
• huiyadanli/revokemsgpatcherA Windows desktop tool that patches WeChat, QQ, and TIM so that messages senders try to recall still stay visi
• sharex/sharexShareX is a free Windows tool that captures screenshots or recordings with one hotkey, then automatically anno
• devtoys-app/devtoysA free cross-platform desktop app with 30+ small developer utilities — JSON formatter, Base64 decoder, regex t
• avaloniaui/avaloniaA C# framework for building desktop, mobile, and web apps that run on Windows, macOS, Linux, iOS, Android, and
• dnspy/dnspyA powerful tool for inspecting, editing, and debugging compiled .NET and Unity apps without needing the origin
• microsoft/semantic-kernelMicrosoft SDK for building AI agents that connect your code to language models, with plugins for real-world ta
• nickemanarin/screentogifScreenToGif is a free Windows app that records your screen, webcam, or drawing board and saves it as an animat
• beyonddimension/steamtoolsCross-platform toolkit for Steam users that unblocks community access via local proxy, manages accounts, and h
• icsharpcode/ilspyILSpy is a free tool that lets you read the source code of any compiled .NET program, even when you don't have
• mxgmn/wavefunctioncollapseAn algorithm that generates new images or tile maps by learning patterns from a single example, creating infin
• dotnet-architecture/eshoponcontainersA sample e-commerce app demonstrating how to build large .NET applications using microservices—splitting funct
• devolutions/unigetuiA graphical Windows desktop app that unifies WinGet, Scoop, Chocolatey, pip, npm, and other package managers i
• ql-win/quicklookPress spacebar in Windows File Explorer to instantly preview any file without opening it—images, videos, PDFs,
• dotnet/maui.NET MAUI is Microsoft's framework for building native iOS, Android, Windows, and Mac apps from a single C# co
• codehubapp/codehubNative iOS app for browsing and managing your GitHub account on iPhone, iPad, or iPod Touch with a touch-frien
• thangchung/awesome-dotnet-coreAwesome .NET Core is a community-curated directory of libraries, tools, and learning resources for .NET Core a
• dotnet/roslynMicrosoft's open-source C# and Visual Basic compiler that exposes its internals as APIs, powering code complet
• jasontaylordev/cleanarchitectureA starter template for building web applications with ASP.NET Core that organizes code into separate layers—bu
• peass-ng/peass-ngSecurity audit scripts that find privilege escalation vulnerabilities on Linux and Windows systems during auth
• unity-technologies/ml-agentsAn open-source toolkit that lets you use Unity game environments as training grounds for AI, teaching agents t
• klocman/bulk-crap-uninstallerA free Windows tool that uninstalls many programs at once — removing bloatware, orphaned apps, and leftover re
• tgsan/cmwtat_digital_editionAn open-source C# tool that activates Windows 10 and 11 using a digital license tied to your hardware, so Wind
• quantconnect/leanLEAN is an open-source algorithmic trading engine that lets you write, backtest, and live-trade automated stra
• bluepointlilac/contextmenumanagerWindows utility to clean up and customize your right-click context menu by enabling, disabling, or editing men
• rocksdanister/livelyLively is a free Windows app that lets you set animated content — videos, GIFs, web pages, shaders, or even ga
• bitwarden/serverThe backend server for Bitwarden, the open-source password manager — contains all APIs and database logic that
• ppy/osuA free-to-play rhythm game where players click, drag, and press keys to the beat. Supports custom gameplay mod
• dapperlib/dapperDapper is a lightweight .NET library that maps SQL query results directly to C# objects via extension methods,
• ardalis/cleanarchitectureA starter template for building ASP.NET Core web apps using Clean Architecture, which separates business logic
• hellzerg/optimizerWindows utility to improve privacy and security by disabling telemetry, removing bloatware, and applying syste
• dotnet/runtimeSource code for the .NET runtime and base class libraries — the low-level engine that actually executes .NET a
• netchx/netchNetch is a Windows proxy client in C# that routes per-app or system traffic through Shadowsocks, WireGuard, Tr
• openra/openraOpenRA is an open-source game engine that recreates 1990s Westwood real-time strategy games (Red Alert, Tiberi
• materialdesigninxaml/materialdesigninxamltoolkitA WPF control library that applies Google Material Design 2 and 3 styling to C# and VB.NET Windows desktop app
• nilaoda/n_m3u8dl-cliA Windows command-line downloader that grabs HLS or DASH video streams, decrypts AES segments, and stitches th
• jackett/jackettA self-hosted server that translates torrent search requests from media-management apps like Sonarr and Radarr
• perfare/assetstudioAssetStudio is a Windows C# tool for opening Unity asset and assetbundle files and exporting textures, audio,
• tyrrrz/youtubedownloaderC# desktop app that downloads videos, playlists, and channels from YouTube by URL or keyword search, with form
• flow-launcher/flow.launcherKeyboard-driven app and file launcher for Windows that searches files, the web, and system commands and runs p
• dotnet/efcoreEntity Framework Core, the official .NET object-database mapper, plus the Microsoft.Data.Sqlite ADO.NET provid
• duplicati/duplicatiFree open-source backup program that encrypts files locally with AES-256, then uploads incremental backups to
• tichau/fileconverterFree Windows tool that adds a right-click context menu to Windows Explorer for converting and compressing audi
• abpframework/abpABP Framework is an open-source toolkit for building enterprise and SaaS web apps in C# that comes with user m
• app-vnext/pollyPolly is a .NET C# library that wraps any code with resilience behaviors — automatic retries, circuit breakers
• questpdf/questpdfQuestPDF is a C# library that lets developers generate PDF documents like invoices and reports by describing t
• srwi/everythingtoolbarEverythingToolbar puts a fast file search box directly in your Windows taskbar, powered by the free Everything
• winsw/winswWinSW wraps any Windows program so it runs as a background Windows service that starts automatically and is ma
• monogame/monogameMonoGame is an open-source C# game framework — the community continuation of Microsoft's discontinued XNA — th
• nilaoda/bbdownA free command-line tool for downloading videos, subtitles, and scrolling comments from Bilibili, supporting q
• sonarr/sonarrSonarr automatically tracks TV shows and downloads new episodes the moment they become available, organizes yo
• kgrzybek/modular-monolith-with-dddA complete, real-world .NET application in C# that shows how to structure a large app into clean, self-contain
• radarr/radarrRadarr is a self-hosted app that automatically finds, downloads, and organizes movies from Usenet and BitTorre
• babalae/better-genshin-impactBetterGI automates repetitive Genshin Impact tasks — fishing, daily chores, farming, crafting — using computer
• justarchinet/archisteamfarmA program that automatically earns Steam trading cards from multiple Steam accounts at the same time, running
• seerge/g-helperA lightweight C# replacement for Asus Armoury Crate that controls performance modes, fan curves, and GPU setti
• d2phap/imageglassA free, lightweight Windows image viewer supporting over 90 file formats including modern ones like WEBP, HEIC
• dotnet/aspnetcore.docsOfficial source repository for ASP.NET Core documentation, published on Microsoft Learn. The community can sub
• josefnemec/playniteA free, open-source game library manager for Windows that pulls your Steam, Epic, GOG, and other platform game
• subtitleedit/subtitleeditA free desktop app for creating, editing, and converting subtitle files on Windows, macOS, and Linux, with vid
• unity-technologies/unitycsreferenceRead-only C# source code for the Unity game engine and editor published by Unity Technologies, letting develop
• dotnet/csharplangThe public home for designing the C# programming language — feature proposals, design meeting notes, and langu
• wmjordan/pdfpatcherA free Windows desktop program for editing PDF files — split, merge, remove restrictions, fix bookmarks, swap
• aspnetboilerplate/aspnetboilerplateASP.NET Boilerplate is a C# web framework that handles multi-tenancy, user management, role permissions, and a
• luckypennysoftware/mediatrA .NET library that routes messages between different parts of your application through a central mediator ins
• microsoft/garnetA high-speed caching server from Microsoft Research that works as a drop-in replacement for Redis — same proto
• odysseusyuan/lky_officetoolsA one-click Windows utility that automatically downloads, installs, and activates Microsoft Office. Detects yo
• minimax-ai/skillsMiniMax Skills is a library of structured workflow instructions for AI coding tools like Claude Code and Curso
• xupefei/locale-emulatorA Windows tool that tricks individual apps into thinking they run under a different system language, letting y
• lucasg/dependenciesA Windows app that shows every DLL a program needs to run, helping you figure out why an app fails to start wi
• mono/monoMono is the original open-source .NET runtime that let C# apps run on Linux, Android, and iOS; it is now in ma
• spectreconsole/spectre.consoleA C# library for .NET that lets developers add formatted tables, colored text, progress bars, and styled panel
• dotnet/benchmarkdotnetA .NET library that measures how fast your code runs, handling warmup, CPU caching, and statistics automatical
• chocolatey/chocoChocolatey is a Windows package manager that lets you install, update, and remove software from the command li
• jamesnk/newtonsoft.jsonJson.NET (Newtonsoft.Json) is one of the most-downloaded .NET libraries, giving C# developers simple tools to
• tyrrrz/discordchatexporterDiscordChatExporter saves Discord message history to HTML, plain text, CSV, or JSON files, with both a desktop
• coding-horror/basic-computer-gamesA community effort to translate all games from the 1970s book 'BASIC Computer Games' into 10 modern languages
• file-new-project/eartrumpetFree Windows app that replaces the built-in volume mixer with per-app volume sliders and lets you move individ
• gui-cs/terminal.guiA .NET toolkit with 50+ ready-made controls for building full-featured applications that run inside a terminal
• mremoteng/mremotengA free Windows application that consolidates all your remote connections — Remote Desktop, SSH, VNC, Telnet, a
• cysharp/unitaskA C# library for Unity that replaces coroutines with async/await code that produces zero heap allocations, kee
• dotnet/orleansOrleans is a Microsoft framework for building apps that run across many servers at once — you write code in a
• mathewsachin/capturaCaptura is a no-longer-maintained Windows screen recorder that captures video, screenshots, and webcam footage
• dotnet-architecture/eshoponwebA sample ASP.NET Core online store built by Microsoft to teach clean architecture and domain-driven design in
• lostindark/driverstoreexplorerA Windows desktop tool for viewing, removing, and backing up hardware drivers from the Windows driver store —
• kareadita/kavitaA self-hosted reading server that gives you a private website to browse and read your personal manga, comics,
• ysgstudyhards/dotnetguideA curated Chinese-language index of learning resources for C# and .NET developers, linking to books, video tut
• dotnet/eshopA Microsoft reference application showing how to build a multi-service e-commerce website using .NET and Docke
• mudblazor/mudblazorA complete set of Material Design UI components for Blazor web apps — add polished buttons, tables, forms, and
• dodyg/practical-aspnetcoreA large collection of small, runnable C# code examples for ASP.NET Core, covering routing, authentication, cac
• cefsharp/cefsharpCefSharp lets you embed a full Chromium-based web browser directly inside a Windows desktop app built with .NE
• luckypennysoftware/automapperA .NET library that automatically copies data between objects with matching property names, eliminating repeti
• kyome22/runcat365RunCat 365 is a tiny Windows app that puts an animated running cat in your taskbar as a lightweight desktop de
• 0x7c13/notepadsNotepads is a modern, tab-based text editor for Windows with Markdown preview and a diff viewer, designed as a
• dotnet/yarpA Microsoft open-source toolkit for building custom reverse proxy servers in .NET — you embed it in your own a
• reactiveui/refitA C# library that turns a simple interface definition into a fully working HTTP client — you describe your RES
• autodarkmode/windows-auto-night-modeA lightweight Windows app that automatically switches between dark and light themes on Windows 10/11 on a sche
• litedb-org/litedbLiteDB is a tiny embedded NoSQL document database for .NET apps that stores everything in a single file — no s
• signalr/signalrA .NET library that lets web servers push real-time updates to connected browsers — used for live chat, auto-u
• lepoco/wpfuiA C# library that gives existing Windows desktop apps the modern Windows 11 look without rewriting them — inst
• dotnet/machinelearningML.NET is Microsoft's free, open-source machine learning library for C# and .NET developers — train models, ru
• xincger/unity3dtrainingA personal archive of over 50 Unity3D learning projects and code samples covering game mechanics, UI, performa
• perfare/il2cppdumperA reverse engineering tool that recovers class names, method names, and type info from compiled Unity il2cpp g
• jynew/jynewJynew is a completed open-source Unity game framework that recreates a classic 1996 Chinese wuxia RPG in 3D, s
• git-ecosystem/git-credential-managerA sign-in helper for Git that handles two-factor authentication with GitHub, GitLab, Azure DevOps, and Bitbuck
• jeffreysu/weixinmpsdkA .NET library for building WeChat integrations in C#. It wraps WeChat's APIs for Official Accounts, Mini Prog
• threemammals/ocelotOcelot is a .NET API gateway library that routes all client requests through a single entry point, with built-
• raywangqvq/bilibilitoolproAn automation tool for the Bilibili video platform that runs your daily login, video-watching, and other point
• davidfowl/aspnetcorediagnosticscenariosA reference collection of real broken code patterns found in ASP.NET Core web applications, with explanations
• reactiveui/reactiveuiReactiveUI is a C# framework for building .NET apps where the UI automatically updates when data changes, usin
• gitextensions/gitextensionsA visual desktop app for Windows that lets you browse Git history, commit changes, and manage branches without
• technitiumsoftware/dnsserverA free self-hosted DNS server that encrypts your browsing lookups to keep them private from your ISP, blocks a
• librehardwaremonitor/librehardwaremonitorLibre Hardware Monitor is a free Windows app and .NET library that reads live temperatures, fan speeds, voltag
• gibbed/steamachievementmanagerA lightweight portable Windows tool for viewing and modifying Steam game achievements and statistics on your a
• borntoberoot/networkmanagerA free, open-source Windows app that combines over a dozen network tools — remote desktop, SSH, port scanner,
• assetripper/assetripperA desktop application that extracts assets from Unity games — images, sounds, 3D models, and scripts — from th
• xm4ddy/ofgbA small Windows 11 desktop app that removes Microsoft-added advertisements from File Explorer and the Start Me
• bartoszcichecki/lenovolegiontoolkitA lightweight Windows utility that replaces Lenovo's bloated Vantage software, giving you control over fan spe
• de4dot/de4dotA free .NET deobfuscator that cleans up scrambled, encrypted, or obfuscated .NET binaries from over 20 known o
• pixieditor/pixieditorPixiEditor is a free, open-source 2D graphics editor for Windows that combines pixel art, painting, and vector
• ricosuter/nswagA .NET toolset that reads your ASP.NET Core web API and automatically generates OpenAPI documentation and read
• neuecc/unirxUniRx is a Unity library that replaces messy coroutine code with clean, stream-based event handling, letting g
• mob-sakai/uieffectA Unity package that adds visual effects — blur, grayscale, dissolve, and glowing outlines — to any UI element
• yaobiao131/downkyicoreA cross-platform desktop app for downloading videos from Bilibili in high-quality formats including 8K, HDR, a
• dotnet/reactiveA set of C# libraries for working with live data streams — stock feeds, sensor readings, user clicks — using t
• nancyfx/nancyArchived C# web framework for building HTTP APIs on .NET that minimized boilerplate so your route code stayed
• dotnetcore/capA .NET library that makes microservice messaging reliable by storing outgoing messages in your database before
• louthy/language-extA C# library that adds functional programming patterns — immutable types, optional values, composable error ha
• handyorg/handycontrolA collection of polished, ready-to-use interface components for Windows desktop apps built with WPF (C#), incl
• quartznet/quartznetA job scheduling library for .NET apps that lets you run background tasks automatically on a timer, fixed inte
• thebookisclosed/viveA C# library and ready-to-use command-line tool for toggling hidden Windows feature flags — the same internal
• hmbsbige/shadowsocksr-windowsA Windows desktop app with a graphical interface for connecting to a ShadowsocksR proxy server, helping users
• builtbybel/flyoobeFlyOOBE lets you install Windows 11 on computers that fail Microsoft's hardware requirements like TPM 2.0 and
• randyrants/sharpkeysA simple Windows app for remapping keyboard keys — make Caps Lock act as Ctrl, swap two keys, or disable a key
• stranslate/stranslateSTranslate is a portable Windows desktop app for translating text and extracting text from images using OCR —
• jstedfast/mailkitA .NET library that lets applications send and receive email using SMTP, IMAP, and POP3, with support for OAut
• prismlibrary/prismA C# framework for building organized, testable desktop and mobile apps on WPF, MAUI, Avalonia, Uno, and WinUI
• eduardopires/equinoxprojectA .NET 9 reference application that shows Domain-Driven Design, CQRS, and Event Sourcing working together in a
• ellanjiang/gameframeworkA set of 19 ready-made Unity modules covering asset loading, UI, scenes, audio, networking, and more, so C# ga
• philippc/keepass2androidKeepass2Android is a free Android password manager that stores credentials in an encrypted KeePass-compatible
• azure/azure-sdk-for-netThe official Microsoft SDK for .NET developers to connect their C# applications to Azure cloud services — cove
• graphql-dotnet/graphql-dotnetAn open-source GraphQL server library for .NET — lets you build APIs where clients request exactly the data th
• shimat/opencvsharpA .NET/C# wrapper for OpenCV that lets you do image processing, object detection, video streaming, and compute
• gerardog/gsudogsudo is a Windows utility that lets you run any terminal command with administrator permissions by prefixing
• microsoft/aspireMicrosoft Aspire lets you describe all the pieces of a multi-service app in code, then starts them in the righ
• veriorpies/parrelsyncParrelSync is a Unity extension that lets you run multiple Unity editor windows at once to test multiplayer ga
• 1remote/1remoteA Windows app that brings all your remote connections — Remote Desktop, SSH, VNC, FTP, and more — into one sea
• fastendpoints/fastendpointsFastEndpoints is a C# library for building REST APIs that replaces boilerplate-heavy MVC Controllers with a cl
• danielgerlag/workflow-coreWorkflow Core is a .NET library for defining and running long-running multi-step processes in C# — with state
• dotnetnext/sqlsugarAn easy-to-use .NET ORM framework that lets you read and write data to many different databases using C# code
• kurrent-io/kurrentdbAn event-sourcing database (formerly EventStoreDB) that stores every change as an ordered sequence of events r
• lambci/docker-lambdaRun and test AWS Lambda functions locally using Docker containers that exactly replicate the Lambda cloud envi
• nickvisionapps/parabolicA desktop app that downloads video and audio from hundreds of websites using yt-dlp under the hood, with a cle
• mob-sakai/particleeffectforuguiUnity package that renders particle effects (confetti, sparks, glows) directly inside uGUI canvases without ex
• chillicream/graphql-platformAn open-source suite of .NET tools for GraphQL — a server called Hot Chocolate, a typed client code generator
• dorssel/usbipd-winA Windows background service that lets you share any USB device plugged into your Windows PC with a Linux envi
• dockersamples/example-voting-appA sample multi-container voting app from Docker that shows how five services (Python, Node.js, .NET, Redis, Po
• proxysu/proxysuProxySU is a Windows desktop app that automates one-click installation of proxy server software (V2ray, Xray,
• hanmin0822/misakatranslatorMisakaTranslator is a Windows tool that reads on-screen text from Japanese visual novels and games in real tim
• win-acme/win-acmewin-acme is a Windows tool that automatically gets SSL certificates from Let's Encrypt and other providers and
• microsoft/wpf-samplesMicrosoft's official collection of small, self-contained code examples showing how to use specific WPF feature
• closedxml/closedxmlC# library for creating, reading, and editing Excel spreadsheets from .NET apps without needing Microsoft Exce
• builtbybel/bloatynosyA standalone Windows 11 tool that removes pre-installed bloatware, unwanted features, and default settings you
• aspnet/mvcAn archived read-only snapshot of the original ASP.NET Core MVC source code — Microsoft's C# framework for bui
• xamarin/xamarin.formsXamarin.Forms was a cross-platform C# toolkit for building iOS, Android, Windows, and macOS apps from a single
• live-charts/live-chartsLiveCharts is an animated charting library for .NET Windows desktop apps (WPF and WinForms) supporting bar, li
• rmcrackan/libationA free desktop app for Windows, macOS, and Linux that downloads your Audible audiobooks and removes the DRM lo
• dotnet/msbuildMSBuild is Microsoft's build system for .NET projects. It reads XML project files and compiles source code int
• dotnet/winformsWindows Forms (WinForms) is Microsoft's open-source .NET 6+ framework for building Windows desktop application
• inkle/inkA scripting language and runtime for writing interactive branching stories — used by writers in the Inky edito
• thejoefin/text-grabA Windows utility that copies text from any part of your screen — including photos, videos, and locked apps —
• microsoft/fluentui-blazorReady-made buttons, data grids, dialogs, and navigation menus for Blazor web apps that look like Microsoft 365
• zalo/mathutilitiesA grab-bag of math and physics algorithms for Unity in C#, covering mesh deformation, inverse kinematics, soft
• azure/azure-powershellThe official Microsoft PowerShell module for managing Azure cloud resources from the command line — create VMs
• indiff/qttabbarA Windows Explorer plugin that adds browser-style tabs to your file manager. Open multiple folders in one wind
• atom0s/steamlessSteamless is a C# tool that strips SteamStub DRM from Steam game executables you legally own, letting you unde
• cobbr/covenantA web-based command and control framework for authorized red team security testing, letting multiple operators
• dotnetcore/bootstrapblazorA library of ready-made UI components for Microsoft Blazor that combines Bootstrap's visual style with C#-firs
• microsoft/perfviewA free Windows tool from Microsoft that records CPU and memory activity in a running .NET application so you c
• davidobot/betterjoyA Windows app that makes Nintendo Switch controllers work with PC games and emulators over Bluetooth or USB, i
• autofac/autofacA .NET library that automatically wires together the objects your application needs so you do not have to manu
• bililiverecorder/bililiverecorderA Windows desktop app that watches Bilibili live streams and records them automatically when they start, handl
• qianmo/unity-design-patternA Unity C# project with working implementations of all 23 classic Gang of Four design patterns plus game-speci
• sebastienros/jintA JavaScript interpreter you add to a .NET app as a NuGet package, letting you run JavaScript code inside C# w
• dotnetcore/utilA C# application framework for .NET that wraps popular third-party libraries into unified, simpler APIs with a
• igormundstein/winmemorycleanerA free portable Windows utility that manually clears RAM held by closed apps using official Windows APIs, with
• xunit/xunitxUnit.net is a free, open-source testing framework for .NET that lets you write and run automated tests in C#,
• ghostpack/seatbeltA Windows security audit tool that runs dozens of read-only checks and reports what an attacker or defender wo
• seblague/digital-logic-simA visual simulator for digital logic circuits where you place basic gates like AND, OR, and NOT and watch sign
• hmbsbige/nattypetesterA Windows tool written in C# that checks how your router handles NAT by running STUN protocol tests, reporting
• opserver/opserverOpserver is the internal monitoring dashboard Stack Exchange (Stack Overflow's company) open-sourced — a singl
• accord-net/frameworkA .NET library covering machine learning, statistics, and computer vision for C# developers who want to do dat
• cysharp/memorypackAn extremely fast C# serialization library that converts objects to bytes and back, running up to 200x faster
• fody/fodyFody is a .NET build tool that automatically rewrites your compiled code to add repetitive features like prope

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