AspNetSerilog by: Thiago Barradas

Serilog logger for AspNet web applications. Handler request, response and exceptions.

AutoFixture.Xunit by: Mark Seemann

By leveraging the data theory feature of xUnit.net, this extension turns AutoFixture into a declarative framework for writing unit tests. In many ways it becomes a unit testing DSL (Domain Specific Language). For xUnit.net 2, please use the AutoFixture.Xunit2 NuGet Package.

Autofac by: Autofac Contributors

Autofac is an IoC container for Microsoft .NET. It manages the dependencies between classes so that applications stay easy to change as they grow in size and complexity.

AutoMapper by: Jimmy Bogard

A convention-based object-object mapper.

AutoFixture by: Mark Seemann AutoFixture

AutoFixture makes it easier for developers to do Test-Driven Development by automating non-relevant Test Fixture Setup, allowing the Test Developer to focus on the essentials of each test case.

AWSSDK.Core by: Amazon Web Services

The Amazon Web Services SDK for .NET - Core Runtime

AutoMapper.Extensions.Microsoft.DependencyInjection by: Jimmy Bogard

AutoMapper extensions for ASP.NET Core

Autofac.Extensions.DependencyInjection by: Autofac Contributors

Autofac implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions, the .NET Framework dependency injection abstraction.

AsyncKeyedLock by: Mark Cilia Vincenti

An asynchronous .NET library that allows you to lock based on a key (keyed semaphores), limiting concurrent threads sharing the same key to a specified number, with optional pooling for reducing memory allocations.

AutoMapper.Collection by: Tyler Carlson

Collection Add/Remove/Update support for AutoMapper. AutoMapper.Collection adds EqualityComparison Expressions for TypeMaps to determine if Source and Destination type are equivalent to each other when mapping collections.

Automatonymous by: Chris Patterson

Automatonymous, an open source state machine library, usable with MassTransit

AttributeRouting by: Tim McCall

AttributeRouting for ASP.NET MVC lets you specify routes using attributes on your MVC controllers and actions.

AttributeRouting.WebApi by: Tim McCall

AttributeRouting for ASP.NET Web API lets you specify routes using attributes on your API controllers and actions.

AttributeRouting.WebApi.Hosted by: Tim McCall

AttributeRouting for self-hosted Web API lets you specify routes using attributes on your API controllers and actions.

AWSSDK.S3 by: Amazon Web Services

Amazon Simple Storage Service (Amazon S3), provides developers and IT teams with secure, durable, highly-scalable object storage.

AsyncUsageAnalyzers by: Sam Harwell et. al.

A collection of analyzers related to best practices for writing asynchronous code.

AspNetCore.HealthChecks.UI.Core by: Xabaril Contributors

HealthChecks.UI.Core package containing builder and model definitions

AspNetCore.HealthChecks.UI.Client by: Xabaril Contributors

HealthChecks.UI.Client contains some mandatory abstractions to work with HealthChecks.UI.

AsyncBridge.Portable by: Daniel Grunwald Omer Mor Alex Davies

Adds the new C#5 async features for .NET 4.0 and Silverlight 5 projects (portable library)

AsyncFixer by: Semih Okur

AsyncFixer detects common async/await anti-patterns and, when possible, offers automatic fixes. It currently reports 6 categories of async/await misuse and provides code fixes for 3 of them. It has been validated against thousands of open-source C# projects and is designed to handle tricky real-world edge cases. Tool-friendly diagnostics support AI-assisted workflows even when a built-in code fix is not available.