F#

F# (pronounced “F sharp”) is a cross-platform, open source, functional programming language for .NET. It also includes object-oriented and imperative programming.

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pulumi /pulumi

Star24.8k

Pulumi - Infrastructure as Code in any programming language 🚀

javascript python go kubernetes golang aws cloud typescript csharp serverless fsharp dotnet azure containers gcp iac cloud-computing infrastructure-as-code

UpdatedFeb 20, 2026
Go

quozd /awesome-dotnet

Star21.1k

A collection of awesome .NET libraries, tools, frameworks and software

awesome csharp fsharp dotnet clr awesome-list

UpdatedSep 16, 2025

dotnet /docs

Star4.7k

This repository contains .NET Documentation.

csharp fsharp visual-basic dotnet dotnet-core hacktoberfest

UpdatedFeb 20, 2026

dotnet /fsharp

Star4.3k

The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

visual-studio tools compiler fsharp functional-programming dotnet netcore intellisense

UpdatedFeb 20, 2026
F#

mathnet /mathnet-numerics

Star3.7k

Math.NET Numerics

statistics csharp integration math fsharp interpolation random matrix linear-algebra regression fft numerics differentiation mathnet

UpdatedMar 3, 2025
C#

dotnet /samples

Star3.7k

Sample code referenced by the .NET documentation

csharp fsharp visual-basic dotnet dotnet-core

UpdatedFeb 6, 2026
C#

AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.

testing unit-testing csharp tdd fsharp dotnet xunit assertions nunit test-data autofixture assertion-library moq fscheck test-data-generator nsubstitute fakeiteasy auto-mocking foq

UpdatedAug 20, 2025
C#

dotnet /interactive

Star3.2k

.NET Interactive combines the power of .NET with many other languages to create notebooks, REPLs, and embedded coding experiences. Share code, explore data, write, and learn across your apps in ways you couldn't before.

data-science csharp jupyter fsharp powershell polyglot notebooks interactive-programming polyglot-dev dotnet-interactive

UpdatedFeb 20, 2026
C#

fable-compiler /Fable

Star3.1k

F# to JavaScript, TypeScript, Python, Rust and Dart Compiler

javascript python dart rust typescript erlang fsharp beam

UpdatedFeb 20, 2026
F#

giraffe-fsharp /Giraffe

Star2.2k

A native functional ASP.NET Core web framework for F# developers.

middleware template-engine fsharp dotnet micro-framework web-framework dotnet-core aspnet-core model-view-presenter http-handler giraffe dotliquid

UpdatedFeb 16, 2026
F#

PragmaticFlow /NBomber

Star2.2k

Distributed load-testing framework for .NET. Create distributed load test scenarios entirely using plain C# or F#. It is designed to test any system regardless of the protocol or a semantic model (Pull/Push).

csharp fsharp dotnet integration-testing load-testing performance-testing

UpdatedFeb 16, 2026
CSS

dotnet /spark

Star2.1k

.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.

microsoft emr machine-learning streaming spark apache-spark csharp fsharp analytics dotnet azure bigdata spark-streaming dotnet-core dotnet-standard databricks spark-sql tpcds hdinsight tpch

UpdatedFeb 13, 2026
C#

fsprojects /Paket

Star2.1k

A dependency manager for .NET with support for NuGet packages and Git repositories.

package-manager fsharp dotnet nuget mono paket

UpdatedJan 20, 2026
F#

netgusto /nodebook

Star1.6k

Nodebook - Multi-Lang Web REPL + CLI Code runner

nodejs ruby python c java go swift rust php clojure haskell r typescript elixir lua csharp fsharp cpp ocaml repl

UpdatedMay 15, 2024
Go

yatli /fvim

Star1.4k

Cross platform Neovim front-end UI, built with F# + Avalonia

vim editor xaml gui ui neovim fsharp dotnet nvim avalonia text-editor neovim-guis

UpdatedOct 17, 2024
F#

fsprojects /awesome-fsharp

Star1.4k

A curated list of awesome F# frameworks, libraries, software and resources.

awesome fsharp dotnet awesome-list

UpdatedJan 18, 2026
F#

SuaveIO /suave

Star1.3k

Suave is a simple web development F# library providing a lightweight web server and a set of combinators to manipulate route flow and task composition.

functional suave fsharp async dotnet webserver http-server