.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
  • FreeBSD Release Binaries (.NET 5, 6 and 7)
• 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 Release Binaries (.NET 6 and 7)

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)