F# Compiler

Open-source F# projects categorized as Compiler
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Top 10 F# Compiler Projects

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Compiler

  1. VisualFSharp

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

    Project mention: Remove ML Compatibility (F#) | news.ycombinator.com | 2026-05-14

  2. SaaSHub

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  3. Fable: F# |> BABEL

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

    Project mention: Fable is a compiler that brings F# into the JavaScript ecosystem | news.ycombinator.com | 2026-06-11

  4. Rezoom.SQL

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

  5. LinqOptimizer

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

  6. FunScript

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

  7. Fable.Python

    Python bindings (FFI) for Fable

  8. boba

    A general purpose statically-typed concatenative programming language. (by glossopoeia)

  9. coollang-2020-fs

    Compiler for a small Scala subset

  10. ShenSharp

    Shen for the Common Language Runtime

  11. ll-lang

    Write once → compile to F#, TypeScript, Python, Java, C#. LLM-optimized syntax. Self-hosting.

    Project mention: The 2,600-Line Compiler That Compiles Itself and Emits F#, TypeScript, Python, Java, and C# | dev.to | 2026-05-18

    Landing page: https://neftedollar.com/ll-lang/

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Compiler projects in F#? This list will help you:

# Project Stars
1 VisualFSharp 4,301
2 Fable: F# |> BABEL 3,093
3 Rezoom.SQL 678
4 LinqOptimizer 477
5 FunScript 445
6 Fable.Python 143
7 boba 56
8 coollang-2020-fs 38
9 ShenSharp 36
10 ll-lang 2

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