Recently updated contribs
Merlin
[21-Feb-2013,
Beta]

Merlin is a tool
which providessmart completion, among other things, in your favorite editor.
As of today, Vim and Emacs are supported.
Ocurl
[31-Jan-2013, version
0.5.4,
Beta]

An OCaml binding for the
libcurl multi-protocol file transfer library.
Ohm
[09-Oct-2012,
Beta]

Ohm is an open source web framework
for the OCaml language.
ocaml-lua
[10-Sep-2012, version
1.0,
Stable]
OCaml-lua provides bindings to the Lua programming language. Lua is a scripting language particularly useful when you need to embed a language in your application.
This project provides the bindings required to embed Lua.
google-drive-ocamlfuse
[16-Aug-2012, version
0.1pre3,
Alpha]

google-drive-ocamlfuse is a FUSE-based file system backed by Google Drive, written in OCaml.
OUnit
[18-Jun-2012, version
1.1.2,
Stable]

Unit test framework for ocaml. It is based on HUnit, a unit testing framework for Haskell.
Findlib
[18-Jun-2012, version
1.3.2,
Mature]


A library manager for Objective Caml.
Older contribs
ocamlbrew
[09-Jan-2012,
Alpha]

ocamlbrew aims to be a simple tool for getting up and running with various versions of OCaml. The concept, along with some basic code, is borrowed from perlbrew.
FDinfo
[04-Jul-2011, version
0.2.1,
Beta]
a small library written in O'Caml to get the current offset and flags of files opened by another process.
Caml-shift
[12-Aug-2010, version
2010-08-11,
Stable]
two OCaml implementations of Dybvig, Sabry, Peyton-Jones' delimited continuation framework. The framework supports `static' ( shift/ reset) and `dynamic' ( prompt/ control, shift0, control0) delimited continuation operators with multiple, arbitrarily typed prompts.
ocamlmq
[01-Jul-2010,
Development code]

ocamlmq is a STOMP message broker with features that make it especially suitable for implementing task queues and communication between subsystems.
Sebib
[19-Apr-2010, version
1.0.0,
Stable]

Sebib means "S-Expressions for BIBliography", it provides a hackable Bibliographic References Management System.
pa_polyrec
[29-Sep-2009, version
0.1,
Beta]
pa_polyrec is a camlp4 extension providing polymorphic recursion.
WideStudio
[27-Jul-2009, version
3.98,
Stable]

WideStudio is an open source, Integrated Development Environment for desktop applications purely made in Japan. This enables you to develop GUI applications that can run on Windows95/98/Me/NT/2000/Xp/Vista, WindowsCE, Linux, FreeBSD, SOLARIS, MacOSX(w/X11), BTRON, T-Engine, mu-CLinux(wo/X11) in various programming languages such as C/C++, Java, Perl, Ruby, Python, Objective Caml.
Since an application is build on MWT(Multi-Platform Widget Toolkit) which runs on multiple platforms, WideStudio applications are all source compatible between these platforms.
OSpec
[05-May-2009, version
0.2.0,
Beta]
OSpec is syntax extension and supporting library for Behavior Driven Development in OCaml.
pa_monad
[10-Dec-2008, version
6.0,
Stable]
Camlp4 extension for monadic expressions in OCaml.
ocaml-glob
[27-Oct-2008, version
0.1.0,
Beta]
This is a trivial wrapper around libc's glob(3) function for OCaml. The Glob
module interface contains a single function, glob. This function takes a
string argument possibly containing shell wildcards, and returns an array
containing the names of the file system entries matching it.
Symbiosis
[13-Oct-2008, version
0.1.0,
Beta]

This is a meta build system.
It is implemented as an ocamlbuild plugin.
It checks out source code from repositories and starts builds of
individual components.
Because ocamlbuild doesn't support linking additional files, a lot of
different code is collected in a single file. This includes a JSON
parser for configuration files.
Symbiosis tries to avoid the problem of collecting all source
dependencies in one large tree, or alternatively installing
dependencies on the system. The former makes it difficult to change
dependent component versions. The latter makes it difficult to quickly
test different build version complicates developer setup.
Correctly configured, just call ocamlbuild with a target for the top
most component to build. All the source should be appear in the
working directory and build.
Initially it can be complex to set up, but once done, it is rather
easy to add new components with interesting dependencies.
ocamlbuild-ctools
[13-Oct-2008, version
0.1.0,
Beta]

An ocamlbuild plugin that supports compiling C and C++ cross platform
using ocamlbuild only.
Variant builds - can build many different variants from the same
source tree. For example static libraries, test builds, debug,
optimization, linking or not linking with some other code, different
platform builds etc.
Automic recursive header file generation - needed for pulling source
into _build directory.
It used to be able to rebuild on header file change, but it has
regressed - it is possible that .stamp files do not hold signatures of
dependencies of dependencies or something.
It has not been tested on Windows, but build rules have been copied
from old build scripts so it should not be that hard to get going.
Bindings for Chipmunk
[30-Apr-2008, version
0.01,
Stable]
Chipmunk is a rigid body physics library, designed for
2D video games. It is intended to be fast, numerically
stable, and easy to use.
OCamlPAM
[25-Feb-2008, version
1.0,
Stable]
OCamlPAM is a wrapper for the Pluggable Authentication Modules (PAM) library. PAM provides a flexible mechanism for authenticating users via administrator-defined policies.
pa_macro_arg
[02-Apr-2007,
Development code]

This is an add-on to the standard Pa_macro syntax extension which allows for command-line arguments of the form -DEFuid=expr where uid is an upper-case identifier (a macro name) and expr is an arbitrary OCaml expression.
pa_log
[30-Mar-2007,
Stable]

A small camlp4 extension that allows conditional
logging commands with a simple syntax.
OCaml-SQLite3
[26-Feb-2007, version
0.12,
Beta]

OCaml bindings to the SQLite 3 database access library.
O'Chess
[01-Dec-2005, version
0.2,
Alpha]
O'Chess is a simple chess engine written in O'Caml.
xstrp4
[07-Nov-2005, version
1.6,
Stable]
The xstrp4 extension of the camlp4 preprocessor adds the well-known $identifier expansions to Caml.
OPath
[16-Aug-2005, version
0.2,
Alpha]
OPath is a physically based renderer written in Objective-Caml, currently it
implements a variety of spectral BSDFs and several rendering algorithms
including distribution ray tracing, path tracing and 'Instant Global
Illumination'. It can render reasonably high polygon meshes and exclusively
uses area light sources (currently only spheres).
Ocaml-Sqlite
[16-Apr-2004, version
0.3.5,
Alpha]
Bindings for accessing Sqlite databases from ocaml programs.
Contfrac
[31-Mar-2004, version
alpha-1,
Alpha]
An OCaml module for performing exact arithmetic on real numbers by representing them as continued fractions. It implements the well-known algorithm described by R.W. Gosper (see reference below). The continued fractions are lazy evaluated (eventually infinite) lists. Basic arithmetic operations as well as many transcendent functions are available.
equeue
[04-Jan-2004, version
2.0,
Stable]


Equeue is a library that offers general purpose event queues and event queues for system events.
findlib-browser
[09-Aug-2001, version
0.1.1,
Alpha]

CGI script that browses packages managed by findlib.
cryptgps
[09-Aug-2001, version
0.2,
Beta]

Symmetric cryptographic algorithms: Blowfish, DES, 3DES.