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
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4626
Packages
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20
New packages this month
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69
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
fmt
OCaml Format pretty-printer combinators
conf-pkg-config
Check if pkg-config is installed and create an opam switch local pkgconfig folder
New Packages
rizzo
FRP library implementation of Rizzo
alice
Radical OCaml build system and environment manager
xdge
XDG Base Directory Specification support for Eio
arc
ARC support in OCaml
dmarc
DMARC support in OCaml
Recently Updated
dockerfile-cmd
Dockerfile eDSL -- generation support
dockerfile-opam
Dockerfile eDSL -- opam support
dockerfile
Dockerfile eDSL in OCaml
ppx_repr
PPX deriver for type representations
repr-bench
Benchmarks for the `repr` package
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.
