C# ASP.NET

Open-source C# projects categorized as ASP.NET

Top 23 C# ASP.NET Projects

  1. nopCommerce

    ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.

  2. Stream

    Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

    Stream logo
  3. DotNetGuide

    🌈【C#/.NET/.NET Core学习、工作、面试指南】记录、收集和总结C#/.NET/.NET Core基础知识、学习路线、开发实战、编程技巧练习、学习视频、文章、书籍、项目框架、社区组织、开发必备工具、技术前沿周刊、常见面试题、面试须知、简历模板、人才招聘、以及自己在学习和工作中的一些微薄见解。希望能和大家一起学习,共同进步。如果本知识库能为您提供帮助,别忘了给予支持哦(关注、点赞、分享)💖。

    Project mention: DotNetGuide: Comprehensive Resource for C#/.NET Mastery | news.ycombinator.com | 2024-08-07
  4. Ocelot

    .NET API Gateway

  5. Orchard Core

    Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of that framework.

  6. Hot Chocolate

    Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.

  7. opentelemetry-dotnet

    The OpenTelemetry .NET Client

    Project mention: Visualize Asp Net Core metrics with Grafana | dev.to | 2025-02-03
  8. ASP.NET MVC Boilerplate

    .NET project templates with batteries included, providing the minimum amount of code required to get you going faster.

  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  10. Exceptionless

    Exceptionless application

    Project mention: What are the best logging and monitoring tools for .NET apps | dev.to | 2024-12-21

    Exceptionless: Free, easy to use and contribute to.

  11. Squidex

    Headless CMS and Content Managment Hub

  12. Carter

    Carter is framework that is a thin layer of extension methods and functionality over ASP.NET Core allowing code to be more explicit and most importantly more enjoyable.

    Project mention: Building a Modular Monolith With Vertical Slice Architecture in .NET | dev.to | 2025-04-15

    I use Carter library for structuring Minimal APIs and MediatR for encapsulating application logic in command handlers:

  13. Smartstore

    A modular, scalable and ultra-fast open-source all-in-one eCommerce platform built on ASP.NET Core 7

  14. CSLA .NET

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

  15. Virto Commerce

    Virto Commerce B2B Innovation Platform

  16. cofoundry

    Cofoundry is an extensible and flexible .NET Core CMS & application framework focusing on code first development

  17. notifo

    Multi channel notification service for collaboration tools, e-commerce, news service and more.

  18. ASP.NET MVC Boilerplate Framework

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

  19. Exceptionless

    Exceptionless clients for the .NET platform

  20. Havit.Blazor

    Free Bootstrap 5 components for ASP.NET Blazor + optional enterprise-level stack for Blazor development (gRPC code-first, layered architecture, localization, auth, ...)

  21. dasblog-core

    The original DasBlog reimagined with ASP.NET Core

  22. azure-signalr

    Azure SignalR Service SDK for .NET

  23. dotnet-db-samples

    .NET code samples for Oracle database developers #OracleDotNet

  24. ASP.NET SAML

    Very simple SAML 2.0 consumer module for ASP.NET/C#

    Project mention: Apache ECharts | news.ycombinator.com | 2025-04-08

    That, plus:

    * Echarts is about the only dependency in our project that I can upgrade - and be sure it never breaks anything. It is so well-thought in that regard. Upgrading for 3.x to 5.x? Sure! "npm update" and everything just keeps working smoothly. That is so refreshing to see these days. Unbelievable.

    * It's both SSR-friendly and SPA-friendly. Being mostly vanilla-js, works seamlessly with both react/vue/apline AND with old-school rails/asp.net/php/whatever. Our app is pretty classic SSR (https://www.jitbit.com/) and I can construct my chart's JSON object on a server using some linq-queries and provide that to echarts.

    * ...OR I can give it a reactive object from vue-based SPA. Dun matter, it just works.

    * whenever we have to add some workarounds (like, showing hovering labels on a pie chart with a bold percentages or something) - I never have to dig into their sources. Almost anything has already been figured out. Easily googlable and "LLM-able".

  25. ProjectLighthouse

    Project Lighthouse is a clean-room, open-source custom server for LittleBigPlanet.

  26. SaaSHub

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

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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C# ASP.NET related posts

  • Building a Modular Monolith With Vertical Slice Architecture in .NET

    1 project | dev.to | 15 Apr 2025
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  • Elanat Brings Web-Forms Back to ASP.NET Core!

    2 projects | dev.to | 16 Jun 2024
  • CodeBehind 2.6 Released

    2 projects | dev.to | 10 Jun 2024
  • Elanat CMS One Year Birthday

    1 project | dev.to | 4 Jun 2024
  • Introduction of CodeBehind Framework

    3 projects | dev.to | 26 May 2024
  • A note from our sponsor - Stream
    getstream.io | 17 Jul 2025
    Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure. Learn more →

Index

What are some of the best open-source ASP.NET projects in C#? This list will help you:

# Project Stars
1 nopCommerce 9,687
2 DotNetGuide 8,808
3 Ocelot 8,580
4 Orchard Core 7,760
5 Hot Chocolate 5,522
6 opentelemetry-dotnet 3,514
7 ASP.NET MVC Boilerplate 3,457
8 Exceptionless 2,438
9 Squidex 2,413
10 Carter 2,299
11 Smartstore 1,360
12 CSLA .NET 1,307
13 Virto Commerce 1,257
14 cofoundry 890
15 notifo 822
16 ASP.NET MVC Boilerplate Framework 723
17 Exceptionless 567
18 Havit.Blazor 561
19 dasblog-core 479
20 azure-signalr 446
21 dotnet-db-samples 430
22 ASP.NET SAML 399
23 ProjectLighthouse 227

Sponsored
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video.
Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
getstream.io