Side by side

Haxelib vs js_of_ocaml

Both stand on code transpilers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Haxelib

Free plan APILinuxMac+1

Choose Haxelib if you develop with Haxe and want a free library manager for central, private, or local libraries.

Visit Haxelib

Choose js_of_ocaml if you want to compile OCaml bytecode for browser or Node.js use, especially when Dune and its browser bindings fit your workflow. Check the stated library and runtime limitations if your program relies on Sys, Thread, Graphics, or general tail-call optimization.

Visit js_of_ocaml

The facts

	Haxelib	js_of_ocaml
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	API, Linux, Mac, Windows	API, Linux, Web
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Haxelib	Not published
Website	lib.haxe.org	ocsigen.org
On code transpilers	#7 of 28	#11 of 28

Haxelib: what it does well

Included with any Haxe distribution.
Installs latest or specified library versions.
Can install dependencies from HXML files.
Supports Git and Mercurial, including private libraries.
Supports offline installation and dependency resolution.

What to know first

The documented client uses command-line commands and compiler arguments.
Setting HAXELIB_NO_SSL to 1 or true switches the client to HTTP.

js_of_ocaml: what it does well

Works with existing OCaml libraries without recompiling them.
Dune supports development and release compilation workflows natively.
Typed interface and PPX syntax support JavaScript interoperability.
Browser bindings cover DOM, Fetch, WebSockets, WebGL, workers, and typed arrays.
Optional packages include Lwt, TyXML, JSON derivation, and a browser toplevel.

What to know first

Most of the Sys module is unsupported.
Extra OCaml libraries such as Thread are generally unsupported.
Graphics support is partial.
Tail calls are not optimized in general.

Alternatives to Haxelib Alternatives to js_of_ocaml The whole list