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

2015-02-20 Improving the OCaml documentation toolchain

2015-02-18 Why we use OPAM for XenServer development

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

840 packages

Last week
2976 users
42084 package installations
6090 repository updates

Last month
13326 users
209600 package installations
27548 repository updates

New packages
bap 0.9.4	Feb 28
ocp-indent 1.5	Feb 28
llvm 3.6	Feb 28
containers 0.9	Feb 27
ppx_import 1.0	Feb 27
ocamlnet 4.0.2	Feb 26
gpx 1.1.0	Feb 23
msgpack 1.1.1	Feb 23
imaplet-lwt 0.1.8	Feb 23
ISO8601 0.1.2	Feb 22

Most Downloaded Packages (this month)
ocamlfind	7430
lwt	5456
cppo	4495
sexplib	4415
type_conv	4240
cmdliner	4031
ounit	3941
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re	3325
bin_prot	3245