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Top 23 C# GraphQL Projects
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.NET 9 will absolutely load a library that was built targeting .NET 5.
For instance, GraphQL was built targeting both .NET 5 and .NET Standard 2.0, as you can see towards the top of the NuGet page: https://www.nuget.org/packages/GraphQL
.NET 9 will use the .NET 5 build, not .NET Standard 2.0. (.NET Framework 4.8.x would use .NET Standard 2.0.) Because .NET 5 > .NET Standard 2.0.
Or Automapper 14 targets only .NET 8: https://www.nuget.org/packages/AutoMapper
It runs on .NET 9 and .NET 10.
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InfluxDB
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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.
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ASP.NET MVC Boilerplate
.NET project templates with batteries included, providing the minimum amount of code required to get you going faster.
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data-api-builder
Data API builder provides modern REST and GraphQL endpoints to your Azure Databases and on-prem stores.
Project mention: Directus – real-time REST and GraphQL API of any SQL database | news.ycombinator.com | 2025-02-23That looks really interesting, but maybe only useful for mssql? [1]
[1] https://github.com/azure/data-api-builder/labels/known-issue
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ShopifySharp
ShopifySharp is a .NET library that helps developers easily authenticate with and manage Shopify stores using Shopify's GraphQL API.
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SaaSHub
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Project mention: These 20 Awesome API Clients Will Change How You Work with APIs | dev.to | 2025-06-11
Pororoca is a network debugging tool focused on HTTP/2 and HTTP/3 support, making it ideal for developers exploring newer web protocols.
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trouble-training
FullStack DDD/CQRS with GraphQL workshop including distributed tracing and monitoring. This shows the configuration from React frontend to .Net backend.
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Fake JSON Server
Fake JSON Server is a Fake REST API that can be used as a Back End for prototyping or as a template for a CRUD Back End.
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Dotnet6.GraphQL4.WebApplication
This project exemplifies the implementation and dockerization of a simple Razor Web MVC Core consuming a full GraphQL 4 Web API, build in a .NET 6 multi-layer project, considering development best practices, like SOLID and DRY, applying Domain-Driven concepts in a Onion Architecture.
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graphql-aspnet
A GraphQL library for ASP.NET developers. This repo represents the library's core source code.
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graphql-to-karate
Automagically generate Karate API tests from your GraphQL schemas. Useful for test-driven development, change validation in CI/CD, and more.
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SaaSHub
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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).
C# GraphQL discussion
C# GraphQL related posts
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Data API builder: modern REST, GraphQL endpoints to Databases and on-prem stores
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.NET Aspire for Data Chatting
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Data API Builder for Azure Databases
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A tool for automagically generating API tests from your GraphQL schemas!
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I built a command line tool that generates API tests from your GraphQL schemas. Check it out!
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ZeroQL V3 - C# friendly GraphQL client
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Data Fetching with Next.js Data Fetching with Next.js 13’s Bleeding-Edge Features
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A note from our sponsor - SaaSHub
www.saashub.com | 22 Jun 2025
Index
What are some of the best open-source GraphQL projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | GraphQL for .NET | 5,939 |
| 2 | Hot Chocolate | 5,496 |
| 3 | ASP.NET MVC Boilerplate | 3,449 |
| 4 | FluentHub | 1,167 |
| 5 | data-api-builder | 1,108 |
| 6 | graphql-net | 890 |
| 7 | ShopifySharp | 823 |
| 8 | ASP.NET MVC Boilerplate Framework | 724 |
| 9 | graphql-client | 638 |
| 10 | Pororoca | 592 |
| 11 | server | 590 |
| 12 | trouble-training | 472 |
| 13 | EntityGraphQL | 439 |
| 14 | Fake JSON Server | 398 |
| 15 | ZeroQL | 303 |
| 16 | examples | 268 |
| 17 | GraphQlClientGenerator | 224 |
| 18 | parser | 220 |
| 19 | Dotnet6.GraphQL4.WebApplication | 75 |
| 20 | graphql-aspnet | 73 |
| 21 | Nikcio.UHeadless | 58 |
| 22 | graphql-query-builder-dotnet | 50 |
| 23 | graphql-to-karate | 14 |
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