Discover F#

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

Giraffe

Write Markdown with code assist and intelligence in the comfort of your favourite editor.

marksman

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

fvim

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.

suave

FAKE

FAKE - F# Make

The decentralized package manager for C++ and friends 🏝️

buckaroo

Repository hosting the open-source Nu Game Engine and related projects.

A simple, fun, and interactive way to learn the F# language through testing.

FSharpKoans

Declarative UI framework for cross-platform mobile & desktop apps, using MVU and F# functional programming

Fabulous

FsCheck

Random Testing for .NET

Bolero brings Blazor to F# developers with an easy to use Model-View-Update architecture, HTML combinators, hot reloaded templates, type-safe endpoints, advanced routing and remoting capabilities, and more.

Bolero

FSharp source code formatter

fantomas

Elm-like abstractions for F# apps

elmish

Statically typechecks a common SQL dialect and translates it to various RDBMS backends

Rezoom.SQL

FSharpPlus

Extensions for F#

VS Code plugin for F# development

ionide-vscode-fsharp

Functional programming and other utilities from the original "fsharpx" project

FSharpx.Extras

Develop cross-plattform GUI Applications using F# and Avalonia!

Avalonia.FuncUI

F# Data: Library for Data Access

FSharp.Data

Rewrap extension for VSCode and Visual Studio

Rewrap

Easy to use .NET library for data and time series manipulation and for scientific programming

Deedle

A smooth testing lib for F#. APIs made for humans! Strong testing methodologies for everyone!

expecto

F# to JavaScript compiler with JQuery etc. mappings through a TypeScript type provider

FunScript

DiffSharp: Differentiable Functional Programming

DiffSharp

http://hopac.github.io/Hopac/Hopac.html

Hopac

Opinionated, web development framework for F# which implements the server-side, functional MVC pattern

Saturn

WebSharper - Full-stack, functional, reactive web apps and microservices in F# and C#

core

VimSpeak

Speak to your editor.

This repo contains benchmarks used for testing the performance of all .NET Runtimes

performance

An automatic query optimizer-compiler for Sequential and Parallel LINQ.

LinqOptimizer

A parser combinator library for F#

fparsec

RFCs and docs related to the F# language design process, see https://github.com/fsharp/fslang-suggestions to submit ideas

fslang-design

F# tools for generating documentation (Markdown processor and F# code formatter)

FSharp.Formatting

A prototypical .NET solution (file system layout and tooling), recommended for F# projects

ProjectScaffold

F# to core erlang compiler experiment

fez

This repository contains code that demonstrates the "Railway Oriented Programming" concept for error handling in functional programming languages.

Railway-Oriented-Programming-Example

f# web automation and testing library, built on top of Selenium (friendly to c# also)

canopy

A declarative CLI argument parser for F#

Argu

A general F# SQL database erasing type provider, supporting LINQ queries, schema exploration, individuals, CRUD operations and much more besides.

SQLProvider

B2R2 is a collection of useful algorithms, functions, and tools for binary analysis.

B2R2

Repeatable Azure deployments with ARM templates - made easy!

farmer

A fresh retake of the React API in Fable and a collection of high-quality components to build React applications in F#, optimized for happiness

Feliz

Cross-platform coverage gathering and processing tool set for dotnet/.Net Framework and Mono

altcover

FsUnit makes unit-testing with F# more enjoyable. It adds a special syntax to your favorite .NET testing framework.

FsUnit

Working sample of a SAFE-Stack project with hot reloading

SAFE-BookStore

A toolkit for building fast and functional-first web applications using F#.

Falco

Logs and metrics are one! Professional logging, metrics and analytics for your apps.

logary

FSharp implementation of Facebook GraphQL query language.

FSharp.Data.GraphQL

F# language server using Language Server Protocol

FsAutoComplete

.NET event sourcing library with CosmosDB, DynamoDB, EventStoreDB, message-db, SqlStreamStore and integration test backends. Focused at stream level; see https://github.com/jet/propulsion for cross-stream projections/subscriptions/reactions

equinox

A lightweight F#/C# library for efficient functional-style pipelines on streams of data.

Streams

A fast multi-format message serializer for .NET

FsPickler

F# support in JetBrains Rider

resharper-fsharp

A lightweight F# HTTP library by @SchlenkR and @dawedawe

FsHttp

C Compiler which targets Excel (MS Office)

Excel-Virtual-Machine

An opinionated F# Library for error handling

FsToolkit.ErrorHandling

Myriad is a code generator for F#

myriad

[ARCHIVED] Power commands for F# in Visual Studio

zzarchive-VisualFSharpPowerTools

Static WPF views for elmish programs

Elmish.WPF

This library provides a set of F# helpers for string manipulations, logging, collection data structures, file operations, text processing, security, async, parsing, diagnostics, configuration files and Json serialization.

fsharplu

Verified Assembly Language for Everest

vale

CardManagement

FSharpLint

FsReveal

FsReveal parses markdown and F# script file and generates reveal.js slides.

Extensions and wrappers for using Reactive Extensions (Rx) with F#.

FSharp.Control.Reactive

Roslyn-based LSP language server for C#

csharp-language-server

This cheatsheet aims to succinctly cover the most important aspects of F# 6.0.

fsharp-cheatsheet

The SDK for creating F# type providers

FSharp.TypeProviders.SDK

Little widget to display AppVeyor, TravisCI, CircleCI, GitHub Actions or Azure Pipelines build history charts and other SVG badges.

CI-BuildStats

The Language-Integrated Quantum Operations (LIQUi|>) Simulator

Liquid

System.Text.Json extensions for F# types

FSharp.SystemTextJson

Practical generic programming for F#

TypeShape

fsharp-language-server

Write F# unit test assertions as quoted expressions, get step-by-step failure messages for free

unquote

Extended code samples related to the book "Domain Modeling Made Functional". Buy the book here: https://pragprog.com/book/swdddf/domain-modeling-made-functional or here https://fsharpforfunandprofit.com/books/

DomainModelingMadeFunctional

interactive graphing library for .NET programming languages 📈

Plotly.NET

F# Shell with integrated F# scripting. Like Bash or Powershell, but better 'cause F#.

FSH

Release with confidence, state-of-the-art property testing for .NET.

fsharp-hedgehog

F# Template for creating and publishing libraries targeting .NET 6.0 `net6.0` or console apps .NET 6.0 `net6.0`.

MiniScaffold

High performance System.Threading.(Value)Task computation expressions for F#

ply

Parser of Typescript declaration files

ts2fable

mathnet-symbolics

Math.NET Symbolics

Type-safe communication layer (RPC-style) for F# featuring Fable and .NET Apps

Fable.Remoting

F# RISC-V Instruction Set formal specification

riscv-fs

Lightweight F# extension for StackOverflow Dapper with support for MSSQL, MySQL, PostgreSQL, and SQLite

Dapper.FSharp

FSharpx.Collections is a collection of datastructures for use with F# and C#.

FSharpx.Collections

An introductory dojo to learn how to develop full stack web applications in F#

SAFE-Dojo

Generate OCaml bindings from TypeScript definitions via the TypeScript compiler API

ts2ocaml

F# generative Type Provider for Swagger

SwaggerProvider

ASN1SCC: An open source ASN.1 compiler for embedded systems

asn1scc

F# computation expression builder for System.Threading.Tasks

TaskBuilder.fs

A collection of older plotting libraries for F#. Recommended to use Plotly.NET instead https://plotly.net/

XPlot

Set of Atom plugins for F# development

ionide-atom-fsharp

Access R packages from F#

RProvider