Fable brings all the power of F# to the JavaScript ecosystem. Enjoy advanced language features like static typing with type inference, exhaustive pattern matching, immutability by default, structural equality or units of measure, and let the compiler catch the bugs for you before they ever get into runtime.

Fable supports most of the F# core library and some of most commonly used .NET APIs: collections, dates, regular expressions, string formatting, observables, async and even reflection! All of this without adding extra runtime overhead and with tree shaking compatibility so you only pay for what you get.

F# has first-class support across a wide range of editors for all tastes: including Visual Studio (for macOS and Windows), VS Code and Atom with Ionide, Emacs or Rider by JetBrains. All of them providing autocompletion, documentation tooltips, error checking on-the-fly, navigation and refactoring tools as well as interactive scripting.

Fable produces readable JavaScript code compatible with ES2015 standards, like modules, classes or iterables, so it plays very well with either native libraries like React or development tools like Webpack. Don't give up the benefits of the ecosystem just because of your language choice.