Top 23 C# Application Framework Projects

Application Frameworks

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1. Introducing .NET Multi-platform App UI (MAUI)

   1 283 23,268 10.0 C#

   .NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

   

   Project mention: Ask HN: What Is the State of App Development in 2026? | news.ycombinator.com | 2026-05-30

2. ReSharper

   www.jetbrains.com featured

   ReSharper is now available in VS Code and Cursor. ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide.

   

3. ABP

   2 36 14,301 10.0 C#

   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.

   

   Project mention: We migrated a .NET app from ABP Framework to Granit without downtime - here's the playbook | dev.to | 2026-05-21

   We just finished moving a 15-module .NET service from ABP Framework to Granit — without a maintenance window, without a code freeze, and without a parallel run-everything-twice phase. The whole thing took about ten weeks running alongside feature work.

4. ASP.NET Boilerplate

   3 17 11,981 7.3 C#

   ASP.NET Boilerplate - Web Application Framework

   

   Project mention: PrimeNG + NestJS = CRM — part 1 | dev.to | 2025-08-12

   I wanted to find a framework that already had all the Boiler code needed for a business application: menus, sections, graphs, users, etc. While searching for such a framework, we noticed the .Net frameworks https://aspnetboilerplate.com and https://abp.io, which already have a lot of things "out of the box". As far as I understand, both frameworks are being developed either by related teams, or even by one team. And the teams are from Turkey. The ASP.NET Boilerplate framework has legacy code from older versions of the .Net Framework. The newer ABP framework does not have legacy, it is on .Net Core. Both frameworks have a decent number of stars on github.

5. Mono

   4 96 11,440 5.8 C#

   Mono open source ECMA CLI, C# and .NET implementation.

   

6. Orleans

   5 36 10,787 9.4 C#

   Cloud Native application framework for .NET

   

7. Uno Platform

   6 159 9,955 10.0 C#

   Open-source platform for building cross-platform native Mobile, Web, Desktop and Embedded apps quickly. Create rich, C#/XAML, single-codebase apps from any IDE. Hot Reload included! 90m+ NuGet Downloads!!

   

   Project mention: Saying Goodbye to Asm.js | news.ycombinator.com | 2026-05-20

   > I like WASM and I want to like WASM but the rate of maturity within the ecosystem is incredibly abysmal.

   The C# toolchain for WebAssembly is pretty good. You can do a lot with Avalonia and Uno:

   https://avaloniaui.net/

   https://platform.uno/

   Here's a C# clone of Visual Basic compiled to WebAssembly:

   https://bandysc.github.io/AvaloniaVisualBasic6/

8. DotNetty

   7 2 4,241 5.2 C#

   DotNetty project – a port of netty, event-driven asynchronous network application framework

   

9. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

10. Fusion

    8 23 1,891 9.6 C#

    Build real-time apps (Blazor included) with less than 1% of extra code responsible for real-time updates. Host 10-1000x faster APIs relying on transparent and nearly 100% consistent caching. We call it DREAM, or Distributed REActive Memoization, and it's here to turn real-time on!

    

11. AspectCore Framework

    9 0 1,764 2.4 C#

    AspectCore is an AOP-based cross platform framework for .NET Standard.

    

12. Microdot Framework

    10 0 1,540 0.0 C#

    Microdot: An open source .NET microservices framework (by gigya)

    

13. CSLA .NET

    11 6 1,345 8.6 C#

    A home for your business logic in any .NET application.

    

14. Kentor Authentication Services

    12 5 1,009 9.2 C#

    Saml2 Authentication services for ASP.NET

    

15. X.PagedList

    13 1 928 8.2 C#

    Library for easily paging through any IEnumerable/IQueryable in ASP.NET

    

16. Spring.Net

    14 0 876 8.2 C#

    Spring Framework for .NET

    

17. ASP.NET MVC Boilerplate Framework

    15 0 720 0.0 C#

    .NET Core Extensions and Helper NuGet packages. (by Dotnet-Boxed)

    

18. peasy

    16 0 521 6.0 C#

    A business logic micro-framework for .NET and .NET Core

    

19. Ivy-Framework

    17 1 424 10.0 C#

    The ultimate framework for building internal tools with LLM code generation by unifying front-end and back-end into a single C# codebase.

    

    Project mention: How We Plan to Use C# 14 Interceptors to Eliminate Reflection in Ivy | dev.to | 2026-03-23

    Ivy is an open-source .NET framework for building internal applications with AI and pure C#. Think of it as a server-driven UI framework: you write your entire app in C# — layout, state, events — and Ivy renders it in the browser. Widgets like Button, TextBlock, and DataTable are plain C# classes decorated with [Prop] and [Event] attributes, and the framework serializes them to JSON on every render cycle to ship the UI state to the frontend.

20. silky

    18 0 290 7.1 C#

    The Silky framework is designed to help developers quickly build a microservice development framework through simple code and configuration under the .net platform.

    

21. formcms

    19 0 260 9.1 C#

    AI Agent: Open-source headless CMS built with ASP.NET Core (C#) and React, featuring REST APIs, GraphQL, and a GrapesJS page designer.

    

22. spec-coding-mcp

    20 0 49 5.4 C#

    Transform feature ideas into production-ready code through systematic Spec-Driven Development 通过系统化的**规格驱动开发**，将功能想法转化为可投入生产的代码

    

23. HopFramework

    21 0 46 0.0 C#

    Domain Driven Design, Microservices, .Net 5.

    

24. PersianDataAnnotations

    22 0 45 0.0 C#

    PersianDataAnnotations is ASP.NET Core MVC & ASP.NET MVC Custom Localization DataAnnotations (Localized MVC Errors) for Persian(Farsi) language - فارسی سازی خطاهای اعتبارسنجی توکار ام.وی.سی. و کور.ام.وی.سی. برای نمایش اعتبار سنجی سمت کلاینت

    

25. Simplify.Web

    23 0 24 7.0 C#

    Simplify.Web is an open-source, lightweight, fast, and highly customizable server-side .NET web framework based on ASP.NET Core for building HTTP-based web applications, RESTful APIs, etc.

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

C# Application Frameworks related posts

• We migrated a .NET app from ABP Framework to Granit without downtime - here's the playbook

  2 projects | dev.to | 21 May 2026

• How We Plan to Use C# 14 Interceptors to Eliminate Reflection in Ivy

  1 project | dev.to | 23 Mar 2026

• Hot Restart for iOS is not included in Visual Studio 2026: What .NET MAUI Developers Need to Know

  1 project | dev.to | 16 Jan 2026

• Why Modular Monolith Architecture is the Key to Effective AI-Assisted Development

  1 project | dev.to | 6 Jan 2026

• Modernizing Legacy Apps with AI

  2 projects | news.ycombinator.com | 26 Nov 2025

• Join the AI Challenge for Cross-Platform Apps: $3,000 in Prizes!

  1 project | dev.to | 19 Nov 2025

• You do it wrong! Customizing ABP Login Page Correctly

  2 projects | dev.to | 27 May 2025
• A note from our sponsor - SaaSHub
  www.saashub.com | 11 Jun 2026

  SaaSHub helps you find the best software and product alternatives Learn more →

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