.NET

Warewolf ESBWarewolf-ESB/Warewolf

A visual, flow-based development environment for designing and creating microservices with drag-and-drop functionality.

OctaneEnginegregyjames/OctaneDownloader

A high-performance, multi-threaded C# library for piecewise file downloads with pause/resume, retry, and proxy support.

GlobalExceptionHandlerDotNetJosephWoodward/GlobalExceptionHandlerDotNet

A middleware for centralized exception handling as a convention in ASP.NET Core applications.

UnicornSitecoreUnicorn/Unicorn

A utility for Sitecore that serializes and syncs database items (templates, renderings) across environments using source control.

MaterialDesignControlsPluginHorusSoftwareUY/MaterialDesignControlsPlugin

A collection of Xamarin.Forms controls implementing Material Design 3 guidelines for cross-platform mobile apps.

SqlHydraJordanMarr/SqlHydra

SqlHydra is a type-safe SQL generation and code generation suite for F# that creates strongly-typed queries from your database schema.

Confluent's .NET Clientconfluentinc/confluent-kafka-dotnet

Confluent's official .NET client for Apache Kafka, built on librdkafka for high performance and reliability.

Composite C1Orckestra/C1-CMS-Foundation

An open-source .NET-based web content management system for building and managing websites.

NSpecnspec/NSpec

A BDD testing framework for .NET inspired by RSpec and Mocha, designed for behavior-driven development with context/specification style.

AggregateSourceyreynhout/aggregateSource

A lightweight .NET library for implementing event sourcing with aggregates, designed for scenarios requiring multi-aggregate collaboration.

Epoxykekyo/epoxy

A minimal, easy-to-use MVVM library for building multi-platform XAML applications in C# and F#.

PupNet Deploykuiperzone/PupNet-Deploy

A cross-platform deployment utility that packages .NET projects as ready-to-ship installation files in a single step.

Acr-xamarin-formsaritchie/acr-xamarin-forms

A collection of cross-platform plugins for Xamarin.Forms providing camera, barcode scanning, dialogs, device info, and other native functionality.

LiquidStateprasannavl/LiquidState

Efficient synchronous and asynchronous state machine library for .NET with zero heap allocations during execution.

GeometRiRiSearcher/GeometRi.CSharp

A simple and lightweight computational geometry library for .NET, providing 3D primitives and operations with implicit coordinate system handling.

Exceptionless.DateTimeExtensionsexceptionless/Exceptionless.DateTimeExtensions

A .NET library providing DateTimeRange, Business Day calculations, and comprehensive extension methods for DateTime, DateTimeOffset, and TimeSpan.

R Type ProviderBlueMountainCapital/FSharpRProvider

An F# type provider that enables seamless interoperability with R packages, offering type-safe access to R functions from .NET.

SignaturePadxamarin/SignaturePad

A cross-platform library for capturing, saving, exporting, and displaying signatures in Xamarin and Xamarin.Forms apps.

PSWriteWordEvotecIT/PSWriteWord

A PowerShell module for creating Microsoft Word documents without requiring Microsoft Word to be installed.

TaskBuilder.fsrspeele/TaskBuilder.fs

An F# computation expression builder for writing System.Threading.Tasks with C# async/await-like syntax and behavior.

Sandra.SnowSandra/Sandra.Snow

A Jekyll-inspired static site generator for .NET that can run locally, as a service, or with Azure automation.

Circle Image Controljamesmontemagno/ImageCirclePlugin

A Xamarin.Forms plugin for displaying circular images with customizable borders and fill colors.

Cirqusd60/Cirqus

A simple but powerful .NET framework for implementing event sourcing and CQRS patterns in domain-driven applications.

Xamarin.Mobilexamarin/Xamarin.Mobile

A cross-platform API for accessing phone functionality like contacts, camera, and geolocation in iOS, Android, and Windows Phone apps.

FSharp.Jsonvsapronov/FSharp.Json

A reflection-based JSON serialization library for F# with built-in null safety and F# type support.

TSQLLinttsqllint/tsqllint

A configurable linting tool that identifies and reports anti-patterns in TSQL scripts.

PSReflectmattifestation/PSReflect

A PowerShell module for defining in-memory enums, structs, and Win32 functions without compiling C#.

LiteBuslitenova/LiteBus

A lightweight, high-performance mediator for implementing Command Query Separation (CQS) and Domain-Driven Design (DDD) in .NET applications.

PCLCryptoAArnott/PCLCrypto

A .NET library providing cryptographic APIs that delegate to platform-native implementations for portable libraries.

Socketsrdavisau/sockets-for-pcl

A cross-platform socket API abstraction for Xamarin and Windows projects, enabling portable socket code in PCL libraries.

Uno Playgroundunoplatform/Uno.Playground

A browser-based sandbox for experimenting with Uno Platform controls and layouts using XAML and WebAssembly.

FliCaptnCodr/Fli

A lightweight F# library for executing CLI commands using computation expression syntax with no external dependencies.

parsergraphql-dotnet/parser

A lexer and parser for GraphQL in .NET, providing a complete AST model compatible with the GraphQL specification.

PullToRefreshLayoutjamesmontemagno/Xamarin.Forms-PullToRefreshLayout

A Xamarin.Forms layout that adds pull-to-refresh functionality to ScrollView, ListView, and CollectionView.

Apos.GuiApostolique/Apos.Gui

A UI library for MonoGame that combines IMGUI-style immediate mode with retained component architecture.

Fun.BlazorslaveOftime/Fun.Blazor

A library that makes it easier for F# developers to build Blazor applications with functional programming and computation expressions.