AdamE.Firebase.iOS.RemoteConfig by: Microsoft, Adam Essenmacher

C# bindings for Firebase APIs Remote Config iOS Library

AngleSharp by: AngleSharp

AngleSharp is the ultimate angle brackets parser library. It parses HTML5, CSS3, and XML to construct a DOM based on the official W3C specification.

AWSSDK.SimpleEmail by: Amazon Web Services

AWS SDK for .NET V3 is in maintenance mode as of March 1st, 2026, with only critical bugs and security issues addressed until end of support on June 1st, 2026. See https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html for migration guidance. Amazon SES is an outbound-only email-sending service that provides an easy, cost-effective way for you to send email.

Azure.Core by: Microsoft

This is the implementation of the Azure Client Pipeline

Azure.Core.Experimental by: Microsoft

Experimental types that might eventually move to Azure.Core

Azure.Storage.Common by: Microsoft

This client library enables working with the Microsoft Azure Storage services which include the blob and file services for storing binary and text data, and the queue service for storing messages that may be accessed by a client. For this release see notes - https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/storage/Azure.Storage.Common/README.md and https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/storage/Azure.Storage.Common/CHANGELOG.md in addition to the breaking changes https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/storage/Azure.Storage.Common/BreakingChanges.txt Microsoft Azure Storage quickstarts and tutorials - https://docs.microsoft.com/en-us/azure/storage/ Microsoft Azure Storage REST API Reference - https://docs.microsoft.com/en-us/rest/api/storageservices/

Bogus by: Brian Chavez

A simple and sane data generator for populating objects that supports different locales. A delightful port of the famed faker.js and inspired by FluentValidation. Use it to create and load databases and UIs with mock up data. Get started by using Faker class or a DataSet directly.

Castle.Core by: Castle Project Contributors

Castle Project Core, including DynamicProxy, Logging Abstractions and DictionaryAdapter

ConsoleAppFramework by: Cysharp

Micro-framework for console applications.

coverlet.collector by: tonerdo

Coverlet is a cross platform code coverage library for .NET, with support for line, branch and method coverage.

CsvHelper by: Josh Close

A library for reading and writing CSV files. Extremely fast, flexible, and easy to use. Supports reading and writing of custom class objects.

DocumentFormat.OpenXml by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DotLiquid by: Tim Jones, Alessandro Petrelli

DotLiquid is a templating system ported to the .NET framework from Ruby’s Liquid Markup.

DotNet.Testcontainers by: Andre Hofmeister and contributors

A lightweight library to run tests with throwaway instances of Docker containers.

EPPlus by: EPPlus Software AB

A spreadsheet library for .NET framework and .NET core

FastEndpoints.Attributes by: FastEndpoints

Attributes used by FastEndpoints.

FluentMigrator.Extensions.Postgres by: Sean Chambers, Josh Coffman, Tom Marien, Mark Junker

FluentMigrator is a database migration framework for .NET written in C#. The basic idea is that you can create migrations which are simply classes that derive from the Migration base class and have a Migration attribute with a unique version number attached to them. Upon executing FluentMigrator, you tell it which version to migrate to and it will run all necessary migrations in order to bring your database up to that version. In addition to forward migration support, FluentMigrator also supports different ways to execute the migrations along with selective migrations called profiles and executing arbitrary SQL.

FluentValidation by: Jeremy Skinner

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Fluid.Core by: Sebastien Ros

Fluid is a template engine based on the Liquid markup, with focus on performance and .NET programming patterns.

Grpc.AspNetCore.Server.ClientFactory by: The gRPC Authors

HttpClientFactory integration the for gRPC .NET client when running in ASP.NET Core