AutoFixture by: Mark Seemann

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.

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.

AspectCore.Core by: Lemon

The implementation of the AspectCore framework.

Aspire.Dashboard by: Microsoft

Dashboard browser interface for .NET Aspire.

AsyncFixer by: Semih Okur

AsyncFixer helps developers in finding and correcting common async/await misuses (i.e., anti-patterns). It currently detects 5 common kinds of async/await misuses and fixes 3 of them via program transformations. AsyncFixer has been tested with thousands of open-source C# projects and successfully handles many corner cases.

AspectCore.Abstractions by: Lemon

The abstract design of the AspectCore framework.

AspectCore.Extensions.Reflection by: Lemon

Reflection extension system for AspectCore Framework.

AsyncUsageAnalyzers by: Sam Harwell et. al.

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

ArrayToPdf by: Leonid Salavatov

Create PDF from Array (List, DataTable, ...)

Autofac.Extensions.DependencyInjection by: Autofac Contributors

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

AspectCore.Extensions.DependencyInjection by: Lemon

Interceptor and dynamicProxy support for Microsoft.Extensions.DependencyInjection via AspectCore Framework.

AttributeRouting.Core by: Tim McCall

Core functionality for all AttributeRouting packages.

AttributeRouting.Core.Http by: Tim McCall

Core functionality for AttributeRouting Web API packages.

Ardalis.GuardClauses by: Steve Smith (@ardalis)

A simple package by @ardalis and @nimblepros with guard clause helper methods. See docs for how to extend using your own extension methods defined in your project.

Asp.Versioning.Abstractions by: .NET Foundation and Contributors

The abstractions library for API versioning.

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)

AttributeRouting.Core.Web by: Tim McCall

Core functionality for AttributeRouting ASP.NET MVC and Web API packages.

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.