What Industry Leaders Say About OCaml

OCaml powers mission-critical systems for companies and helps them achieve their goals.

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Case Study

Behind-the-scenes stories from businesses and organisations using OCaml to solve real-world problems.

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Large Scale Trading System

Why Ocaml?

Rich Type System

Performance and Efficiency

Large-Scale Usage (+500 OCaml programmers and 30M lines of code )

Powerful Static Analysis

Who Uses OCaml?

With its strong security features and high performance, many companies rely on OCaml to keep their data operating both safely and efficiently.

Testimonials

Using OCaml as a programming language to write software has many benefits. For instance, it is able to describe the source code in an easy and understandable manner. The fear of refactoring in the source code can be eased as well. OCaml has a mature and very evolving ecosystem, which is a large, supportive and friendly community.

Xavier Van de Woestyne

Software engineer, Marigold.

Originally I was going to program twttr in Python, C, & Ocaml. But, I got @florian who was a core contributor to Ruby on Rails.

Jack Dorsey

Founder, Twitter.

OCaml as the development environment acts as a very much trusted partner throughout the whole development process. As our requirements evolve, we change the implementation a lot, and this is where the language shines. Literally, I am not afraid to change others’ code when OCaml has my back!

Oleksiy Golovko

Backend Developer, Ahrefs.

OCaml helps us to quickly adapt to changing market conditions and go from prototypes to production systems with less effort ... Billions of dollars of transactions flow through our systems every day, so getting it right matters.

Yaron Minsky

CTO, Jane Street.

Thanks to the OCaml team, obviously, without such a beautiful yet practical language, this project would not exist. The original type system was inherited from it with lots of modifications to fit with JS ecosystem better.

Bob Zhang

Maintainer, ReScript.

OCaml in Teaching and Research

With its deep mathematical roots, OCaml has always been a beacon of academic excellence. It is taught in universities around the world and has accrued an ever-growing body of research.