For people on OS X, you can get it on brew and all the Linux distros should have opam for you to install. For Windows people, get a VM. Once you have opam installed, you probably want to do: This will install the latest version of the compiler. ocamlfind is a program that predates opam and wraps the standard OCaml compilers: ocamlc and ocamlopt. The former is a byte code compiler and the latter cr