.NET is a free and open-source, managed computer software framework. It is a cross-platform successor to .NET Framework and released under the MIT License.

Adding FreeBSD Support to .NET is currently a work in progress with most work taking place in the following issues:

• dotnet/source-build: GitHub Issue #1139: Building the .NET Core SDK on FreeBSD
• dotnet/runtime: GitHub Issue #14537: Support for FreeBSD

Notably, building .NET requires an existing and working dotnet cli SDK to bootstrap the build, as mentioned in the Workflow Guide: FreeBSD Requirements documentation/

Producing this binary natively for FreeBSD is the aim of upstream issue #1139 mentioned above.

Until native boostrap is available officially from upstream, FreeBSD .NET builds can be produced using either:

1. An existing freebsd dotnet cli binary.
2. A dotnet cli binary built on FreeBSD under Linux Emulation.

• Upstream .NET Workflow Guide
• Workflow Guide: FreeBSD Requirements

This section documents third party, maintained efforts to progress .NET FreeBSD support.

• GitHub: Thefrank - Cross-build under Linux Emulation
  • GitHub: Thefrank/dotnet-freebsd-crossbuild: Instructions for building dotNET for FreeBSD
  • Repository containing .NET FreeBSD binaries

• GitHub: sec - Native Build
  • GitHub: sec/dotnet-core-freebsd-source-build: Collection of script to build .NET Core under FreeBSD
  • Uses boostrap binaries from Thefrank
  • FreeBSD .NET Release Binaries (.NET 6 and 7)

The above GitHub (thefrank and sec) projects produce .NET FreeBSD Release Binaries:

• github.com: thefrank: FreeBSD .NET Release Binaries (.NET 5, 6 and 7)
• github.com: sec: FreeBSD .NET Release Binaries (.NET 6 and 7)

Developers and users are encouraged to test and provide feedback on these releases, report bugs, and provide improvements to the builds.

This section documents earlier work that may continue to prove useful as references.

• GitHub: jasonpugsley
  • Instructions to build .NET Core 3.1.x on FreeBSD

• windows.net: dotnet/Sdk/master/dotnet-sdk-latest-freebsd-x64.tar.gz

• Radarr Project – Ships FreeBSD .NET binaries
  • See FreeBSD Bugzilla Issue #259194: net-p2p/radarr: Switch to upstream .NET binary release
  • Radarr CI workflow to build FreeBSD binaries using Azure Pipelines.

.NET Framework 2.x

• lang/linux-dotnet-cli: Cross-platform .NET implementation
• lang/linux-dotnet-runtime: Cross-platform .NET implementation (Runtime)
• linux-dotnet-sdk: Cross-platform .NET implementation (Software Development Kit)

.NET Framework 1.1

• lang/linux-dotnet11-runtime: Cross-platform .NET implementation (Runtime)
• linux-dotnet11-sdk: Cross-platform .NET implementation (Software Development Kit)

.NET Framework 1.0

• lang/linux-dotnet10-runtime: Cross-platform .NET implementation (Runtime)