Is .NET Runtime free and open source?

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

What language is .NET Runtime written in?

.NET Runtime is primarily written in C#.

What are open-source alternatives to .NET Runtime?

Other open-source developer tools & cli tools on OSSDrop include VS Code, Oh My Zsh, MarkItDown, Go.

.NET Runtime

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Cross-platform runtime and libraries for .NET applications on cloud, mobile, desktop, and IoT.

Visit docs.microsoft.com Source

Developer Tools & CLI·MIT·C#·18.2k stars·v10.0.11·added 2026-09-03

Curated listing — added by OSSDrop, not the maker.

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Frequently asked

What is .NET Runtime?
.NET Runtime is an open-source developer tools & cli tool — Cross-platform runtime and libraries for .NET applications on cloud, mobile, desktop, and IoT. It is written in C#.
Is .NET Runtime free and open source?
Yes. .NET Runtime is free and open source, released under the MIT license. You can view and contribute to the source at https://github.com/dotnet/runtime.
What language is .NET Runtime written in?
.NET Runtime is primarily written in C#.
What are open-source alternatives to .NET Runtime?
Other open-source developer tools & cli tools on OSSDrop include VS Code, Oh My Zsh, MarkItDown, Go.

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