Haxelib vs js_of_ocaml

Haxelib is the library manager included with Haxe distributions. It connects to a central repository for finding, installing, and sharing Haxe libraries on Windows, macOS, and Linux, with API access. The command line installs the latest release or a specified version, resolves dependencies from HXML files, and supports offline installation. Search matches project names or descriptions, while the info command displays ownership, licensing, descriptions, websites, tags, versions, and release notes. Developers can submit ZIP archives or directories, use Git or Mercurial repositories, and create local repositories from project files. Installed libraries can be exposed to the Haxe compiler with --library or -L. Haxelib can use an HTTP proxy or a custom server. Libraries are distributed as source by default. The public HaxeFoundation repository is MIT licensed, and community links include GitHub, bug reports, Stack Overflow, forums, Discord, and Gitter. All libraries are free.

js_of_ocaml compiles OCaml bytecode programs into JavaScript for browsers and Node.js. It works with an existing OCaml installation and does not require libraries to be recompiled. Installation is available through opam, while Dune supports separate compilation in development and whole-program compilation in release builds. Whole-program compilation performs global dead-code elimination and cross-module optimization. The library provides a typed bridge between OCaml and JavaScript, including PPX syntax for properties, methods, constructors and objects. Browser bindings cover the DOM, Fetch, WebSockets, WebGL, workers and typed arrays. Optional packages add Lwt support, TyXML, JSON derivation and an OCaml toplevel in the browser. Documented targets include Node.js 18 or later, QuickJS-NG and modern ECMAScript 2020 browsers, including Chrome 80+, Firefox 74+, Safari 13.4+ and Edge 80+. Requirements include OCaml 4.13–5.5, Dune 3.20 or later and Menhir. The project is free and open source.