App.Metrics by: Allan Hardy and Contributors

App Metrics is an open-source .NET Standard library used to record application metrics.

App.Metrics.Abstractions by: Allan Hardy

App Metrics Core abstractions and interfaces for metric types, reporting, filtering and more.

App.Metrics.Concurrency by: Allan Hardy and Contributors

Provides useful structures for performing efficient concurrent operations. Original Project: https://github.com/etishor/ConcurrencyUtilities, including a port of Java's LongAdder and Striped64 classes

Appium.WebDriver by: Appium Commiters

Selenium Webdriver extension for Appium.

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.

ArrayToPdf by: Leonid Salavatov

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

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

The abstractions library for API versioning.

AspectCore.Abstractions by: Lemon

The abstract design of the AspectCore framework.

AspectCore.Core by: Lemon

The implementation of the AspectCore framework.

AspectCore.Extensions.DependencyInjection by: Lemon

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

AspectCore.Extensions.Reflection by: Lemon

Reflection extension system for AspectCore Framework.

Aspire.Dashboard by: Microsoft

Dashboard browser interface for .NET Aspire.

AspNet.Security.OpenIdConnect.Primitives by: Kévin Chalet

OpenID Connect primitives for the OpenID Connect server middleware.

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.

AsyncUsageAnalyzers by: Sam Harwell et. al.

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

AttributeRouting by: Tim McCall

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

AttributeRouting.Core by: Tim McCall

Core functionality for all AttributeRouting packages.

AttributeRouting.Core.Http by: Tim McCall

Core functionality for AttributeRouting Web API packages.

AttributeRouting.Core.Web by: Tim McCall

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