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


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
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3165 users
40761 package installations
6819 repository updates
Last month
15098 users
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32247 repository updates
Most Downloaded Packages (this month)
ocamlfind 7476
lwt 6099
sexplib 5392
re 4670
uri 4515
stringext 4217
bin_prot 4110
ppx_tools 3979
core_kernel 3959
type_conv 3941
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