Js_of_ocaml [1] is a good alternative to BuckleScript for standard OCaml (non-Reason). For example, it works well with Core_kernel [2] and Async_kernel [3] to

Js_of_ocaml [1] is a good alternative to BuckleScript for standard OCaml (non-Reason). For example, it works well with Core_kernel [2] and Async_kernel [3] to provide high-level functionality that is cross compatible between Unix applications and browser applications. [1] https://github.com/ocsigen/js_of_ocaml https://github.com/ocsigen/js_of_ocaml [2] https://github.com/janestreet/core_kernel https://github.com/janestreet/core_kernel [3] https://github.com/janestreet/async_kernel https://github.com/janestreet/async_kernel