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

Download and install OPAM » How to use OPAM »

News

2014-12-18 OPAM 1.2 and Travis CI

2014-11-03 Merlin 2.0 release

2014-10-23 OPAM 1.2.0 Released

2014-10-14 Binary distribution with 0install

2014-08-26 UTop: a much improved interface to the OCaml toplevel

2014-08-21 Turn your editor into a full fledged OCaml IDE

2014-08-19 OPAM 1.2: Repository Pinning

2014-08-14 OPAM 1.2.0 public beta released

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

Tutorials

Installing OPAM

Creating Packages

Developer Manual

831 packages

Last week
2589 users
39572 package installations
6981 repository updates

Last month
10056 users
151813 package installations
20420 repository updates

New packages
fat-filesystem 0.10.2	Jan 31
xentropyd 0.9.3	Jan 29
sqlite3 2.0.8	Jan 29
git 1.4.6	Jan 29
mirage 2.2.1	Jan 29
mirage-block-xen 1.3.0	Jan 29
mirage-net-unix 2.1.0	Jan 29
dns 0.14.0	Jan 29
io-page 1.4.0	Jan 28
ocamlgraph 1.8.6	Jan 28

Most Downloaded Packages (this month)
ocamlfind	6540
cppo	4321
lwt	4025
ounit	3934
sexplib	3531
type_conv	3488
cmdliner	2996
yojson	2813
easy-format	2689
biniou	2504