Top ASPNET GitHub Repositories & Tools (2026)

Self-hosted media server for a small circle of family and friends.

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

ASP.NET Boilerplate - Web Application Framework

:electron: Build cross platform desktop apps with ASP.NET Core (Razor Pages, MVC, Blazor).

Business Apps Made Simple with Asp.Net Core MVC / TypeScript

OAuth 2.0 social authentication providers for ASP.NET Core

E-commerce platform built with ASP.NET Core using MongoDB for NoSQL storage

A framework for building JSON:API compliant REST APIs using ASP.NET and Entity Framework Core.

🌐 YAF.NET - C# ASP.NET Forum

The original DasBlog reimagined with ASP.NET Core

A filled with self-loathing implementation of Basic Authentication, and Certificate Authentication to make me feel like a real security person, all for for ASP.NET Core

Sass Compiler Library for .NET Core 3.1/5.x/6.x/7.x without node, using dart-sass as a compiler

OpenID 2.0 authentication middleware for ASP.NET Core

DNTCommon.Web.Core provides common scenarios' solutions for ASP.NET Core applications.

A library for using FluentValidation with Blazor EditForm components. Provides seamless integration between FluentValidation and Blazor forms with support for real-time validation, nested objects, async validation, and rule sets.

Extensions for Microsoft.AspNetCore.OpenApi

Blazor UI components you own: headless primitives + styled components delivered as source by a dotnet tool. Tailwind CSS v4, 8 skins, 16 palettes, RTL and WCAG AA out of the box.

A highly-performant memo component for Blazor, similar to React.memo, that avoids redundant re-renders and lifecycle method calls.

Build all of your apps using what you already know and love ❤️

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.