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A complete and extensible base library for F#.

Total Downloads
2.3M
2,322,239
Published
Jan 11, 2026
9mo ago

Get Started

dotnet add package FSharpPlus --version 1.9.1
ProductVersions
.NET
net6.0
.NET Standard
netstandard2.0netstandard2.1

README

FSharpPlus

Download NuGet NuGet Preview Made with F# License - Apache 2.0

F#+ is a base library that aims to take F# to the next level of functional programming.

What if we imagine F# as more than it is?

F#+ builds upon FSharp, using generic programming techniques to help you avoid boiler plate code. However, by naming conventions and signatures it can be seen to 'enhance' rather than 'replace' existing patterns as much as possible.

Getting started is easy since you can start with enjoying some of the extensions and generic functions, but you will find other parts of F#+ unfold before you and become useful the deeper in you get.

See the documentation for more details.

Seeking Help

We're happy to help with any questions, including complete beginners!

Please do join us to chat on:

...or you can ask a question on stack overflow with tag F#+

Contribute

The project is hosted on GitHub where you can report issues, fork the project and submit pull requests. Opening issues for discussion or asking questions is welcome, don't hesitate to fill the New Issue form!

  • The Developer Guide contains details about idioms of implementation in terms of how the type class concept translates in the implementation.
  • The Design Guidelines contains details about design choices guiding the implementation with regard to naming, and choices impacting runtime and compile time performance.

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