Asterius is a Haskell to WebAssembly compiler based on GHC. It compiles simple Haskell source files or Cabal executable targets to WebAssembly+JavaScript code which can be run in node.js or browsers. It features seamless JavaScript interop (lightweight Async FFI with Promise support) and small output code (~600KB hello.wasm for a Hello World). A lot of common Haskell packages like lens are already supported. The project is actively maintained by Tweag I/O.

Contributors

Asterius is maintained by Tweag I/O.

Have questions? Need help? Tweet at @tweagio.