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


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
2022 users
20052 package installations
3179 repository updates
Last month
8314 users
76898 package installations
12149 repository updates
Most Downloaded Packages (this month)
ocamlfind 5167
lwt 2381
ounit 2327
type_conv 2104
sexplib 1916
cppo 1670
cmdliner 1497
fieldslib 1488
easy-format 1383
yojson 1342