Roslyn VS Fable: F# |> BABEL

Compare Roslyn vs Fable: F# |> BABEL and see what are their differences.


The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs. (by dotnet)

Fable: F# |> BABEL

F# to JavaScript, TypeScript, Python, Rust and Dart Compiler (by fable-compiler)
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Roslyn Fable: F# |> BABEL
155 59
18,299 2,789
0.9% 1.1%
10.0 9.7
5 days ago 6 days ago
C# F#
MIT License MIT License
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 Roslyn. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-07.

Fable: F# |> BABEL

Posts with mentions or reviews of Fable: F# |> BABEL. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-02-24.
  • Exploring a foreign F# codebase
    4 projects | | 24 Feb 2024
    NOTE: For larger codebases with more history it is likely that the Program.fs file will have a lot of orchestration and logic as well. given that it is often where everything clashes and starts, for example the Fable Entrypoint is in Entry.fs and it contains a lot of code. The best you can do always is to start at the bottom of the file and work your way up. Remember: Everything at the bottom uses what has already been defined at the top so there are no circular dependencies or random functions/types at the bottom that can trip you off, everything comes from the top!
  • Revisiting WASM for F#
    3 projects | | 16 Dec 2023
    I am a big fan of going with web components + plain (build-less) javascript whenever possible, so it is not surprising that I often favor things like the Fable Compiler, where I can target my F# code directly to javascript and be as close to the native JS experience as possible, both for interop concerns and for ecosystem integration.
  • A new F# compiler feature: graph-based type-checking
    9 projects | | 5 Nov 2023

    Here build times are not really an issue as it seems to be hot-transpiling to js, so save and site is reloaded almost instant (at least small sites):

    My small tools site built with Fable:

    If you look at the JS - that's of-course the production minimized build, the transpiled JS is pretty nice and readable.

    Super simple site - vanilla JS seems wonderfully easy with F#, easy to hide its warts and build easy re-usable items.

    But there's of course also smarter stuff with two-way bindings via html annotation and builders etc. I am actually using Feliz.ViewEngine, which is building the HTML using F#, but only for the navigation bar. Might try converting a page to it.

    9 projects | | 5 Nov 2023
    Fable compiler -

    The F# community is very friendly (these sub-communities as well), and they have plenty of good issues/opportunities to contribute OSS work to across any skill level.

    Phosphor isn't hiring right now, but we expect to begin a search for FE/interface engineers over the next few month. Email [email protected] for anyone interested.

  • Building React Components Using Unions in TypeScript
    15 projects | | 1 Oct 2023
    Naturally I’d recommend using a better language such as ReScript or Elm or PureScript or F#‘s Fable + Elmish, but “React” is the king right now and people perceive TypeScript as “less risky” for jobs/hiring, so here we are.
  • Dart 3.1 and a retrospective on functional style programming in Dart
    7 projects | | 17 Aug 2023
    Stuff like this:

    It just seems like an incredibly ambitious project that appears to have very little equal but is mainly worked on by a handful of people but no corporate backing. I get the feeling that if you want to use it, you'll either be the only one doing what you're doing or among just a few people. I already use F# and feel this way about the core language itself.

  • Elixir – Why the dot (when calling anonymous functions)?
    2 projects | | 14 Aug 2023
    F# is also part of the OCaml family, has a great to-JS transpiler ( and F# code can also be used in .NET projects.
  • Is it possible to write games like Pac-Man in a functional language?
    10 projects | | 1 Jul 2023
  • Are there any good resources on reflection in Fable?
    2 projects | /r/fsharp | 24 Apr 2023
    Yeah, I just found that a while ago. Also, I found a link to the Fable reflection tests in its docs, and going over it, it seems like it supports all of it for types that are fully known at compile time.
  • Comparing Objective Caml and Standard ML
    5 projects | | 15 Feb 2023
    If you like F# but not .NET, Fable might also be worth a look:

What are some alternatives?

When comparing Roslyn and Fable: F# |> BABEL you can also consider the following projects:

Mono-basic - Visual Basic Compiler and Runtime

MSBuild - The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

F# - Please file issues or pull requests here:

rescript-compiler - The compiler for ReScript.

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

Roslyn-linq-rewrite - Compiles C# code by first rewriting the syntax trees of LINQ expressions using plain procedural code, minimizing allocations and dynamic dispatch.

Bridge.NET - :spades: C# to JavaScript compiler. Write modern mobile and web apps in C#. Run anywhere with Bridge.NET.

CSharpObfuscator - CSharp Obfuscator protects your .NET application code through obfuscation transforms, while maintaining debugging abilities for quality assurance testing.

Sutil - Lightweight front-end framework for F# / Fable. No dependencies.

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

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