OCaml Packages
Explore thousands of open-source OCaml packages with their documentation
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opam
The 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
4441
Packages
49
New packages this month
50
Updates this week
packages
Most Used
odoc
OCaml Documentation Generator
alcotest
Alcotest is a lightweight and colourful test framework
lwt
Promises and event-driven I/O
cmdliner
Declarative definition of command line interfaces for OCaml
fmt
OCaml Format pretty-printer combinators
New Packages
brisk-reconciler
A lightweight library for modeling tree-shaped state with stateful functions
dunolint-lib
A library to create dunolint configs
dunolint
A linter for build files in dune projects
pplumbing
Utility libraries to use with [pp]
dynamic_gc
Dynamically adjust GC behavior based on memory usage
Recently Updated
camlp5
Preprocessor-pretty-printer of OCaml
brisk-reconciler
A lightweight library for modeling tree-shaped state with stateful functions
mkaudio
CLI program for generating audio files
caldav
A CalDAV server
ocaml-solo5-cross-aarch64
OCaml cross-compiler to the freestanding 64-bit ARM Solo5 backend
stable ecosystem
Focus on Your Code, and opam Takes Care of Distributing It
Our users have the highest standards for the OCaml ecosystem to run mission-critical applications across a variety of operating systems, and they expect that a package that compiles today will still work a decade from now
Continuous Integration
Before any package update, we run sandboxed matrix builds for boundaries of the dependencies and for each of the dependent packages. A package publication will never break the rest of the ecosystem.
State of the Art
Opam supports publishing multiple versions of packages simultaneously to specify the version constraints, so only compatible revisions are chosen for a build. It comes with a performant constraint solver, a flexible CLI, a well-specified metadata format, and an easy access to the package manager logic via OCaml libraries.
Package Stability
The opam project and package repository is maintained by a team of developers who ensure that everything is not only running smoothly, but also curated to maintain a high degree of metadata quality. This makes it one of the most stable package repositories available today.
community
Start Contributing
Learn how to publish your first Opam package today and make it available to the rest of the community.
