opam  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 2.1.0~rc2 released

  opam 2.1.0~beta4 released

  opam 2.0.8 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
26821 users
1680020 package installations
16042 repository updates
Last month
43443 users
2746834 package installations
26703 repository updates
Most Downloaded Packages (this month)
ocaml-base-compiler24315
csexp23824
menhir23700
js_of_ocaml14276
jsonrpc13758
dot-merlin-reader11908
graphics11764
atd11741
ppx_deriving_yojson11710
cohttp11106
all packages