VisualFSharp VS ocaml

Compare VisualFSharp vs ocaml and see what are their differences.


The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio (by dotnet)


The core OCaml system: compilers, runtime system, base libraries (by ocaml)
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VisualFSharp ocaml
55 116
3,647 4,901
1.7% 3.2%
9.7 9.8
1 day ago 4 days ago
F# OCaml
MIT License GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of VisualFSharp. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-16.
  • AOT
    3 projects | /r/fsharp | 16 Jan 2023
    F# AOT feature tracking
  • old languages compilers
    12 projects | /r/ProgrammingLanguages | 26 Dec 2022
  • Ask HN: Is Clojure Dead?
    6 projects | | 29 Sep 2022
    Can't speak to the others, but I'm pretty sure the F# team just doubled or tripled in size (it's still small though). Also the GitHub repo is very active: .
  • What are the features you're looking forward to in the next version of Fsharp?
    8 projects | /r/fsharp | 4 Aug 2022
  • Help with trying to get a .NetFramework project running in VS2022
    2 projects | /r/fsharp | 16 Apr 2022
    Have you tried the workaround listed here?
  • How to install Homebrew package manager on Steam Deck to compile software and install command-line programs without disabling the read-only partition (allowing the installation to persist on SteamOS updates)
    3 projects | /r/SteamDeck | 28 Mar 2022
    (deck@steamdeck bin)$ brew install --build-from-source mono ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/77885651b42fb3b50e405e300ab4dce5d65e10eac8ee6b8d956b5240b58adcb3--3070886a1c5e3e3026d1077e36e67bd5310e0faa.patch ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/195208ba31cadc265ea97bb8aad4e78caab1200daf4d855e6c839b5f987f92db--configure-big_sur.diff ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/81c9245ab2b5c07a5bc87a8792e374b22a652c14be27b73aa21c1948f1273464--fsharp-portable-pdb.patch ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/13d3ba5313c9e2b60ebfa4c40d5039269485e75aa41fcf301cc55458382fcb29--fsharp-netfx-multitarget.patch ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/c3d6a94f53c828d6ad7b5a563682a6de3d388644f3a33f1ea55ec28fa461e24b--be6b22d11ae996b2d9b8e0724d9cf05ad65a0485.patch ==> Cloning Updating /home/deck/.cache/Homebrew/mono--fsharp--git ==> Checking out tag v11.0.0-beta.20471.5 HEAD is now at 03283e07f Merge pull request #10172 from dotnet/merges/main-to-release/dev16.8 HEAD is now at 03283e07f Merge pull request #10172 from dotnet/merges/main-to-release/dev16.8 ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/ ==> Cloning Updating /home/deck/.cache/Homebrew/mono--msbuild--git origin/HEAD set to xplat-master refs/remotes/origin/xplat-master ==> Checking out revision 70bf6710473a2b6ffe363ea588f7b3ab87682a8d HEAD is now at 70bf67104 prevent exception for increasing priority (#5547) HEAD is now at 70bf67104 prevent exception for increasing priority (#5547) ==> Downloading Already downloaded: /home/deck/.cache/Homebrew/downloads/6092400166df5dee225b09670c68fa3aa400319e8871facaff0106aa143419fb--mono- ==> Patching ==> Applying 3070886a1c5e3e3026d1077e36e67bd5310e0faa.patch patching file packaging/MacSDK/ ==> Applying configure-big_sur.diff patching file configure Hunk #1 succeeded at 10928 (offset 2195 lines). ==> ./configure --prefix=/home/linuxbrew/.linuxbrew/Cellar/mono/ --enable-nls=no Last 15 lines from /home/deck/.cache/Homebrew/Logs/mono/01.configure: checking whether we are using the GNU C++ compiler... yes checking whether g++-11 accepts -g... yes checking dependency style of g++-11... gcc3 checking for a Python interpreter with version >= 3.2... python checking for python... /usr/bin/python checking for python version... 3.1 checking for python platform... linux checking for python script directory... ${prefix}/lib/python3.10/site-packages checking for python extension module directory... ${exec_prefix}/lib/python3.10/site-packages checking dependency style of gcc-11... gcc3 checking for gawk... (cached) gawk checking how to run the C preprocessor... /lib/cpp configure: error: in `/tmp/mono-20220328-41596-77f8ae/mono-': configure: error: C preprocessor "/lib/cpp" fails sanity check See `config.log' for more details READ THIS:
  • Hot-reload in Fun.Blazor
    3 projects | | 27 Feb 2022
    I know csharp got hot-reload for blazor for a while, I also keep tracking on the fsharp issue and hope there is some miracle which can happen. But there is no progress here. So I decide to have a look for what I can do. To make dotnet watch work directly is too hard to me which required a lot of knowledge about FSharp.Compiler.Service and the IL format which csharp roslyn is using for patch the program for hot-reload.
  • Data Access in Fsharp
    8 projects | | 12 Nov 2021
    If you get a message like "warning FS3511: This state machine is not statically compilable." don't worry it is being tracked in
  • What I wish I knew when learning F#
    10 projects | | 14 Oct 2021
    You can simply contribute to, the maintainers are very friendly to new contributors in my experience (though the codebase is old and often quite hard to understand).
  • The Very First Post
    11 projects | | 10 Sep 2021
    The F# Programming Language: I consider F# as the functional-oriented sibling of C#. This language offers a nice introduction to statically-typed functional programming. It offers a really nice ML-like syntax, as well as some features like type providers (a way to define a schema for data such as a database table, JSON file, etc.).


Posts with mentions or reviews of ocaml. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-11-12.
  • OCaml: a Rust developer's first impressions
    4 projects | | 12 Nov 2023
    > But .mli files do not help with the "no types in the source code" problém

    It partially helps since it forces you to have types where they matters most: interfaces.

    > And I did not experience any advantage of separate signature files so far,

    100kLoc is already quite big! I'm starting to think I'm an outlier since a lot of people don't see the benefits :)

    For me, it helps because I really don't want to see the implementation when I use an API. If I need to look at the implementation, it means the interface isn't well specified. All I need should be in the interface: types, docs, (abstract) types. And no more.

    Typically, an .ml file will have more than what is exported, types won't be abstract but will have a concrete implementation, and type signatures may be missing. How would it feels like to use list if only was available, instead of

    Haskell tells you what is exported from a module, but it only shows you the names. To see the signatures, you need to rely on generated doc.

    Arguably, since OCaml has includes, it suffers from the same problem, your ".mli" may have tons of include and it becomes harder to see what's exported without an external tool

    4 projects | | 12 Nov 2023
    > It partially helps since it forces you to have types where they matters most: exported functions

    But the problém the OP has is not knowing the types when reading the source (in the .ml file).

    > How would it feels like to use list if only was available,

    If the signature where in the source file (which you can do in OCaml too), there would be no problem - which is what all the other (for some definition of "other") languages except C and C++ (even Fortran) do.

    No, really, I can't see a single advantage of separate .mli files at all. The real problém is that the documentation is often worse too, as the .mli is autogenerated and documented afterwards - and now changes made later in the sources need to be documented in the mli too, so anything that doesn't change the type often gets lost. The same happens in C and C++ with header files.

  • Bringing more sweetness to ruby with sorbet types 🍦
    5 projects | | 18 Sep 2023
    If you have been in the Ruby community for the past couple of years, it's possible that you're not a super fan of types or that this concept never passed through your mind, and that's totally cool. I myself love the dynamic and meta-programming nature of Ruby, and honestly, by the time of this article's writing, we aren't on the level of OCaml for type checking and inference, but still, there are a couple of nice things that types with sorbet bring to the table:
  • What is gained and lost with 63-bit integers? (2014)
    2 projects | | 12 Aug 2023
    Looks like there have been proposals to eliminate use of 3 operand lea in OCaml code (not accepted sadly):

  • What can Category Theory do?
    2 projects | /r/askmath | 22 Jun 2023
    Haskell and Agda are probably the most obvious examples. Ocaml too, but it is much older, so its type system is not as categorical. There is also Idris, which is not as well-known but is very cool.
  • Playing Atari Games in OCaml
    2 projects | | 15 Jun 2023
  • Bloat
    4 projects | /r/ProgrammingLanguages | 22 May 2023
    That does sound problematic, but without the code it is hard to tell what is the issue. Typically, compiling a 6kLoc file like takes 0.8 s on my machine.
    4 projects | /r/ProgrammingLanguages | 22 May 2023
  • Key takeways from OpenAI CEO's 3-hour Senate testimony, where he called for AI models to be licensed by US govt. Full breakdown inside.
    2 projects | /r/ChatGPT | 17 May 2023
    NEAT is a fascinating algorithm. I've been interested in it ever since SethBling made a video about it playing Mario and this series of experiments about a variant of NEAT that evolves in real-time rather than by-generation. I'm finally getting to be just good enough of a programmer that I am actually considering writing my own (probably in OCaml because there's an unfortunate lack of NEAT implementations in functional programming languages).
  • So Hows the Hackathon Going?
    4 projects | /r/ProgrammerHumor | 10 May 2023
    easier than haskell and easier for writing compilers:

What are some alternatives?

When comparing VisualFSharp and ocaml you can also consider the following projects:

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

F# - Please file issues or pull requests here:

Roslyn - The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

Alpaca-API - The Alpaca API is a developer interface for trading operations and market data reception through the Alpaca platform.

Nemerle - Nemerle language. Main repository.

language-ext - C# functional language extensions - a base class library for functional programming

ClojureCLR - A port of Clojure to the CLR, part of the Clojure project

Fable - The project has moved to a separate organization. This project provides redirect for old Fable web site.

Mono-basic - Visual Basic Compiler and Runtime

dune - A composable build system for OCaml.

TradeAlgo - Stock trading algorithm written in Python for TD Ameritrade.

melange - A mixture of tooling combined to produce JavaScript from OCaml & Reason