Fable

Fable is an F# to JavaScript/TypeScript, Python, Dart, Rust, and Erlang/Elixir (BEAM) compiler. Current stable version is 2.13.0 (npm package for CLI integration) with compiler core at v5.0.0. The project releases frequently with alphas/RCs. Unlike F# Compiler Services directly, Fable translates F# into clean, readable code for multiple targets. Key differentiator: it covers F#-to-multiple-backends in one tool, with growing language support including quotations and inlining. Note: npm 'fable-compiler' package is a wrapper for JS-based tooling; the actual compiler is the dotnet tool 'fable'.