.NET

Virto CommerceVirtoCommerce/vc-platform

An open-source, headless ecommerce platform built on .NET for building extensible B2B, B2C, and B2B2C applications.

WTelegramClientwiz0u/WTelegramClient

A C#/.NET library for interacting with Telegram's MTProto API, enabling programmatic user account control and full client functionality.

Securityaspnet/Security

Security and authorization middleware for ASP.NET Core web applications.

Fabulousfabulous-dev/Fabulous

A declarative UI framework for building cross-platform mobile and desktop apps using F# and the Model-View-Update architecture.

Fabulousfsprojects/Fabulous

A declarative UI framework for cross-platform mobile and desktop apps using MVU architecture and F# functional programming.

Simple Injectorsimpleinjector/SimpleInjector

A fast, flexible, and easy-to-use Dependency Injection library for .NET that promotes best practices and verifiable configurations.

Avalonia.FuncUIfsprojects/Avalonia.FuncUI

A functional UI framework for building cross-platform desktop applications with F# and Avalonia.

FsCheckfscheck/FsCheck

A property-based testing library for .NET that automatically generates random test cases to verify program specifications.

CodeFormatterdotnet/codeformatter

A Roslyn-based tool that automatically rewrites .NET source code to follow specified coding styles.

ServiceStack.TextServiceStack/ServiceStack.Text

A high-performance .NET library for JSON, JSV, and CSV text serialization and deserialization.

LottieBaseflow/LottieXamarin

Render Adobe After Effects animations natively on Xamarin platforms (Android, iOS, macOS, tvOS) using JSON exports.

dotNetifydsuryd/dotNetify

Build real-time, reactive web apps with .NET back-end and React/Vue/Blazor front-end via WebSocket.

MVVMLightlbugnion/mvvmlight

A toolkit to accelerate development of MVVM applications across Xamarin, UWP, WPF, Silverlight, and Windows Phone platforms.

Microsoft.FeatureManagementmicrosoft/FeatureManagement-Dotnet

A .NET library for implementing feature flags to enable beta access, rollouts, and dark deployments.

Meziantou.Analyzermeziantou/Meziantou.Analyzer

A Roslyn analyzer for C# that enforces good practices in design, usage, security, performance, and style.

Rg.Plugins.Popuprotorgames/Rg.Plugins.Popup

A cross-platform plugin for Xamarin.Forms that enables displaying pages as customizable popups with animations.

DryIocdadhi/DryIoc

A fast, small, and full-featured Inversion of Control container for .NET applications.

saaskitsaaskit/saaskit

A .NET toolkit for building multi-tenant SaaS applications with platform-agnostic simplicity.

CQRSlitegautema/CQRSlite

A lightweight CQRS and Event Sourcing framework for .NET, providing essential building blocks with minimal dependencies.

Wix Toolsetwixtoolset/wix

A powerful open-source toolset for creating Windows installation packages and MSI files.

Cron Expression Descriptorbradymholt/cron-expression-descriptor

A .NET library that converts cron expressions into human-readable descriptions in multiple languages.

google-cloud-dotnetGoogleCloudPlatform/google-cloud-dotnet

Official .NET client libraries for Google Cloud Platform services, providing idiomatic APIs for cloud integration.

ZXing.Net.MobileRedth/ZXing.Net.Mobile

A cross-platform barcode scanning library for Xamarin and .NET mobile applications.

Blazor-ApexChartsapexcharts/Blazor-ApexCharts

A Blazor wrapper for ApexCharts.js, enabling interactive charting in .NET web applications.

jose-jwtdvsekhvalnov/jose-jwt

A minimal, zero-dependency .NET library for JWT signing, encryption, and JWK support with full JOSE compliance.

dotnet-console-gamesdotnet/dotnet-console-games

A collection of game examples implemented as .NET console applications for education and inspiration.

tweetinvilinvi/tweetinvi

An intuitive .NET C# library for accessing Twitter's REST and Stream APIs across multiple platforms.

DevSkimmicrosoft/devskim

A security linting framework with IDE plugins and CLI tools that identifies vulnerabilities as developers write code.

DevSkimMicrosoft/DevSkim

A security linting framework with IDE plugins and CLI tools that detects vulnerabilities as developers write code.

Splatreactiveui/splat

A cross-platform library for .NET providing service location, logging, image loading, and geometry primitives to reduce platform-specific code.

BCrypt.NetBcryptNet/bcrypt.net

A .NET port of the bcrypt password hashing algorithm with adjustable work factor for secure password storage.

WorkflowEngine.NEToptimajet/WorkflowEngine.NET

A .NET workflow engine component that adds customizable workflow capabilities to applications, supporting SQL/NoSQL databases and runtime process scheme generation.

OpenBudgeteerTheAxelander/OpenBudgeteer

A self-hosted budgeting application based on the Bucket Budgeting Principle, inspired by YNAB and Buckets.

GraphicalToolsPowerShell/GraphicalTools

PowerShell modules providing console-based GUI experiences with interactive grid and tree views for data exploration.

Jurassicpaulbartrum/jurassic

A .NET library that compiles and executes JavaScript code, providing a high-performance, standards-compliant ECMAScript runtime.

Mobius: C# API for SparkMicrosoft/Mobius

C# and F# language binding and extensions for Apache Spark, enabling .NET developers to write Spark driver programs and data processing operations.