Alternatives and similar repositories for extensions

Users that are interested in extensions are comparing it to the libraries listed below

• MiniProfiler / dotnet
  A simple but effective mini-profiler for ASP.NET (and Core) websites
  ☆2,977Updated 6 months ago
• serilog / serilog
  Simple .NET logging with fully-structured events
  ☆7,594Updated last month
• stefanprodan / AspNetCoreRateLimit
  ASP.NET Core rate limiting middleware
  ☆3,162Updated 10 months ago
• dotnet / aspnet-api-versioning
  Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.
  ☆3,142Updated 2 months ago
• MapsterMapper / Mapster
  A fast, fun and stimulating object to object Mapper
  ☆4,641Updated 4 months ago
• castleproject / Core
  Castle Core, including Castle DynamicProxy, Logging Services and DictionaryAdapter
  ☆2,264Updated 3 months ago
• domaindrivendev / Swashbuckle.AspNetCore
  Swagger tools for documenting API's built on ASP.NET Core
  ☆5,379Updated this week
• jamesmh / coravel
  Near-zero config .NET library that makes advanced application features like Task Scheduling, Caching, Queuing, Event Broadcasting, and mo…
  ☆4,139Updated 2 months ago
• tmenier / Flurl
  Fluent URL builder and testable HTTP client for .NET
  ☆4,311Updated 5 months ago
• dotnet / Docker.DotNet
  .NET (C#) Client Library for Docker API
  ☆2,341Updated 7 months ago
• nodatime / nodatime
  A better date and time API for .NET
  ☆2,897Updated 2 months ago
• khellang / Scrutor
  Assembly scanning and decoration extensions for Microsoft.Extensions.DependencyInjection
  ☆3,970Updated 2 weeks ago
• fluentassertions / fluentassertions
  A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests.…
  ☆3,807Updated this week
• morelinq / MoreLINQ
  Extensions to LINQ to Objects
  ☆3,779Updated 2 weeks ago
• autofac / Autofac
  An addictive .NET IoC container
  ☆4,576Updated last month
• rabbitmq / rabbitmq-dotnet-client
  RabbitMQ .NET client for .NET Standard 2.0+ and .NET 4.6.2+
  ☆2,198Updated last week
• dotnet / command-line-api
  Command line parsing, invocation, and rendering of terminal output.
  ☆3,534Updated last week
• lukencode / FluentEmail
  All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.
  ☆3,133Updated last year
• MassTransit / MassTransit
  Distributed Application Framework for .NET
  ☆7,433Updated this week
• quartznet / quartznet
  Quartz Enterprise Scheduler .NET
  ☆6,778Updated last month
• dotnet / templating
  This repo contains the Template Engine which is used by dotnet new
  ☆1,689Updated this week
• coverlet-coverage / coverlet
  Cross platform code coverage for .NET
  ☆3,076Updated 2 months ago
• openiddict / openiddict-core
  Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET
  ☆4,824Updated this week
• linq2db / linq2db
  Linq to database provider.
  ☆3,101Updated this week
• natemcmaster / CommandLineUtils
  Command line parsing and utilities for .NET
  ☆2,263Updated 7 months ago
• CoreWCF / CoreWCF
  Main repository for the Core WCF project
  ☆1,720Updated last week
• aspnet-contrib / AspNet.Security.OAuth.Providers
  OAuth 2.0 social authentication providers for ASP.NET Core
  ☆2,465Updated last week
• Xabaril / AspNetCore.Diagnostics.HealthChecks
  Enterprise HealthChecks for ASP.NET Core Diagnostics Package
  ☆4,261Updated 5 months ago
• dotnet / BenchmarkDotNet
  Powerful .NET library for benchmarking
  ☆11,019Updated this week
• StephenCleary / AsyncEx
  A helper library for async/await.
  ☆3,635Updated last year