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F#

Strongly-typed, functional-first programming language for writing simple code to solve complex problems
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What is F#?

F# is a mature, open source, cross-platform, functional-first programming language. It empowers users and organizations to tackle complex computing problems with simple, maintainable and robust code.
F# is a tool in the Languages category of a tech stack.
F# is an open source tool with 2.2K GitHub stars and 337 GitHub forks. Here’s a link to F#'s open source repository on GitHub

Who uses F#?

Companies
56 companies reportedly use F# in their tech stacks, including Walmart, Jet.com, and Olo.

Developers
204 developers on StackShare have stated that they use F#.

F# Integrations

.NET, .NET Core, .NET for Apache Spark, Continuous, and MonoDevelop are some of the popular tools that integrate with F#. Here's a list of all 11 tools that integrate with F#.
Private Decisions at about F#

Here are some stack decisions, common use cases and reviews by members of with F# in their tech stack.

Tuomas Hietanen
Tuomas Hietanen
Lead Software Engineer · | 1 upvotes · 0 views
Shared insights
on
F#F#

Programming language F#

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Shared insights
on
.NET.NETF#F#C#C#DockerDockerKubernetesKubernetes

I've used .NET for many years, but only in recent years, after Microsoft introduced .NET Core, I've found a new love and excitement for the technology again. The main driver for us using .NET Core is not that it is cross platform compatible, open source or blazingly fast (which it is!), but the fact that we can use (what we consider) the best programming languages (mainly F# and C#) to carry out our jobs without sacrificing the other benefits.

Today we run most of our web infrastructure on .NET Core in Docker containers, deployed into a Kubernetes cluster which spans across multiple time zones in the Google Cloud and we couldn't be happier. Due to the portability of the .NET Core platform we are even able to develop many new services as serverless functions with F# which has become an absolute game changer.

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Tuomas Hietanen
Tuomas Hietanen
Lead Software Engineer · | 1 upvotes · 1 views
Shared insights
on
F#F#

Backend programming language. F#

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Public Decisions about F#

Here are some stack decisions, common use cases and reviews by companies and developers who chose F# in their tech stack.

Yshay Yaacobi
Yshay Yaacobi
Software Engineer · | 31 upvotes · 1.3M views

Our first experience with .NET core was when we developed our OSS feature management platform - Tweek (https://github.com/soluto/tweek). We wanted to create a solution that is able to run anywhere (super important for OSS), has excellent performance characteristics and can fit in a multi-container architecture. We decided to implement our rule engine processor in F# , our main service was implemented in C# and other components were built using JavaScript / TypeScript and Go.

Visual Studio Code worked really well for us as well, it worked well with all our polyglot services and the .Net core integration had great cross-platform developer experience (to be fair, F# was a bit trickier) - actually, each of our team members used a different OS (Ubuntu, macos, windows). Our production deployment ran for a time on Docker Swarm until we've decided to adopt Kubernetes with almost seamless migration process.

After our positive experience of running .Net core workloads in containers and developing Tweek's .Net services on non-windows machines, C# had gained back some of its popularity (originally lost to Node.js), and other teams have been using it for developing microservices, k8s sidecars (like https://github.com/Soluto/airbag), cli tools, serverless functions and other projects...

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Shared insights
on
.NET.NETF#F#C#C#DockerDockerKubernetesKubernetes

I've used .NET for many years, but only in recent years, after Microsoft introduced .NET Core, I've found a new love and excitement for the technology again. The main driver for us using .NET Core is not that it is cross platform compatible, open source or blazingly fast (which it is!), but the fact that we can use (what we consider) the best programming languages (mainly F# and C#) to carry out our jobs without sacrificing the other benefits.

Today we run most of our web infrastructure on .NET Core in Docker containers, deployed into a Kubernetes cluster which spans across multiple time zones in the Google Cloud and we couldn't be happier. Due to the portability of the .NET Core platform we are even able to develop many new services as serverless functions with F# which has become an absolute game changer.

See more

F# Alternatives & Comparisons

What are some alternatives to F#?
Haskell
OCaml
It is an industrial strength programming language supporting functional, imperative and object-oriented styles. It is the technology of choice in companies where a single mistake can cost millions and speed matters,
Scala
Scala is an acronym for “Scalable Language”. This means that Scala grows with you. You can play with it by typing one-line expressions and observing the results. But you can also rely on it for large mission critical systems, as many companies, including Twitter, LinkedIn, or Intel do. To some, Scala feels like a scripting language. Its syntax is concise and low ceremony; its types get out of the way because the compiler can infer them.
Python
Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
Clojure
Clojure is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system.
See all alternatives

F#'s Followers
296 developers follow F# to keep up with related blogs and decisions.
Jørgen Olsen
Ricardo MM
Harish Nair
Wojciech Winogrodzki
Ibrahim Radi
João Sequeira
sarah johnston
Krzysztof Skowronek
Ioan-Adrian Pârvu
Deiby Olaya Orejuela