OPAM logo  OCaml Package Manager


OPAM is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow. Managing your OCaml installation can be as simple as:

opam list -a         # List the available packages
opam install lwt     # Install LWT
opam update          # Update the package list
...
opam upgrade         # Upgrade the installed packages to their latest version


News

  opam 2.0 preview release!

Contribute

Report bugs and ask for features in the OPAM tool
Report packaging issues or request new packages

Address general queries on the tool and packages
Discuss the tool internals



Last week
3117 users
69597 package installations
8479 repository updates
Last month
11012 users
262697 package installations
35817 repository updates
Most Downloaded Packages (this month)
ocamlfind 10742
cppo 7844
lwt 6077
ppx_tools 5983
biniou 5393
yojson 5271
easy-format 5153
camlp4 4770
ocamlbuild 4690
cmdliner 4482
all packages