Jane Street is built on open source. Here you'll find the open source libraries that we've released. These include:
- Core, an industrial strength alternative to OCaml's standard library. It is not a compatible, drop-in replacement for the standard library. We've made different design decisions, and so code designed for the standard library needs to be adapted to use Core.
- Core_extended, a set of useful extensions to Core. These are less well tested and less stable than Core proper.
- Async, a monadic concurrency library
- A set of syntax extensions, including Sexplib and Bin_prot, which extend the OCaml language itself. These are not necessary to use the rest of the libraries, but they are necessary for building them.
The easiest way to install our libraries is using the OPAM package manager.
Interested in contributing?
Great! We're happy to work with people who want to help grow Core and the associated libraries. Learn more about the practicalities of contributing here.
Core is available under the Apache open-source license.
Also, if you want to contribute to this website, you can fork it and send us a pull request.
- The latest API documentation.
- A Hello World Project to get you started on using Core.
- A set of installation hints.
- The dummy's guide to Async.
- Join the Core mailing list here.
- A guide for contributing to Core.
- Read the coding standards page to see the design principles behind Core.
- The patdiff. tool. An improved diff-like tool using Core libraries.