ocaml/dune

Health v2 · maintenance only

Adoption not part of the score

1911 stars · 495 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Dune is a composable build system for the OCaml language that reads project metadata from S-expression `dune` files and handles compilation, testing, installation, and editor tooling setup. It supports parallel incremental builds, multi-package monorepos, and interoperates with the OCaml ecosystem including OPAM, Merlin, Reason, and js_of_ocaml.

Use cases

• build ocaml executables and libraries
• manage a monorepo of multiple ocaml packages
• run tests for an ocaml project
• speed up incremental ocaml builds
• set up ocaml development tooling like merlin
• build ocaml packages on windows
• install ocaml packages built with dune via opam

When to choose

• you are building any OCaml project, from small libraries to large applications
• you need to develop multiple OCaml packages together or maintain a monorepo
• you want fast parallel incremental builds with no external system dependencies
• you want a build system that understands the OCaml toolchain out of the box
• you need first-class Windows support for OCaml builds

When to avoid

• your project is not written in OCaml or closely related OCaml-ecosystem languages
• you require highly custom build steps that do not fit Dune's rule-based model
• your team has standardized on another build tool like make orOCaml's legacy ocamlbuild workflow

Facets

cli-tool · maturity stable

build-tool cli developer-tools programming-languages cross-platform windows cli ocaml build-system monorepo parallel-builds opam-integration s-expression-config jane-street merlin-integration linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="ocaml/dune")