Is ASP.NET Core free and open source?

Yes. ASP.NET Core is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/dotnet/aspnetcore.

What language is ASP.NET Core written in?

ASP.NET Core is primarily written in C#.

What are open-source alternatives to ASP.NET Core?

Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

ASP.NET Core

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A cross-platform .NET framework for building web applications and services.

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Web & APIs·MIT·C#·38.4k stars·v10.0.11·added 2026-08-22

Curated listing — added by OSSDrop, not the maker.

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#2 Tool of the Day· Aug 22, 2026

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Frequently asked

What is ASP.NET Core?
ASP.NET Core is an open-source web & apis tool — A cross-platform .NET framework for building web applications and services. It is written in C#.
Is ASP.NET Core free and open source?
Yes. ASP.NET Core is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/dotnet/aspnetcore.
What language is ASP.NET Core written in?
ASP.NET Core is primarily written in C#.
What are open-source alternatives to ASP.NET Core?
Other open-source web & apis tools on OSSDrop include React, Flutter, Next.js, Supabase.

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