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OCaml

OCaml (/oʊˈkæməl/ oh-KAM-əl, formerly Objective Caml) is a general-purpose, high-level, multi-paradigm programming language which extends the Caml dialect of ML with object-oriented features. OCaml was created in 1996 by Xavier Leroy, Jérôme Vouillon, Damien Doligez, Didier Rémy, Ascánder Suárez, and others.

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Designed by
Xavier Leroy, Jérôme Vouillon, Damien Doligez, Didier Rémy, Ascánder Suárez
Developer
Inria
Family
ML: Caml
Filename extensions
.ml, .mli
First appeared
1996; 30 years ago (1996)
Implementation language
OCaml, C

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Overview

Philosophy

History

Features

Code examples

Derived languages

Software written in OCaml

Users

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OCaml

Nodes202
Edges201
Triples174
Avg. degree1.99
Density0.009901
Components1

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OCaml

Top relations

related to Software written in OCaml · 34
OCaml → Alt-Ergo, Astrée, Coq, EDonkey, Facebook, Facebook Messenger, FFTW, Fourier, Frama-C, GeneWeb, HOL Light, JavaScript, Liquidsoap, MirageOS, MLdonkey, Opa, Owl Scientific Computing, PHP, Reason, ReScript
related to Development of ML (Meta Language) · 24
OCaml → As, Between, British, CAM, Computable Functions, Computer Science, Edinburgh's Laboratory, Foundations, Guy Cousineau, In, INRIA's Formel, LCF, Lisp, Logic, Luca Cardelli, Milner, ML, Oxford, Paris Diderot University, Pierre-Louis Curien
related to Users · 20
OCaml → At, Bloomberg, BuckleScript, Citrix Hypervisor, Citrix Systems, Docker, Facebook, Flow, Hack, In June, Infer, Jane Street Capital, JavaScript, Notable, OxCaml, Pfff, ReasonML, ReScript, Windows, XenServer
related to Ongoing development · 16
OCaml → ACM SIGPLAN's Programming Languages, As, Cambium, Cristal, GADTs, Gallium, GC, Generalized Algebraic Data Types, In, INRIA, Language, OCaml's, Software Award, Subsequently, The OCaml, These
related to Philosophy · 10
OCaml → Also, By, Effective, For, Java, ML-derived, ML-like, Object-oriented, OCaml's, Thus
related to Objective Caml · 8
OCaml → Caml Special Light, Didier Rémy, In, Jacques Garrigue, Java, Jérôme Vouillon, Objective Caml, This
related to Arbitrary-precision factorial function (libraries) · 6
OCaml → As, For, In OCaml, Num, Thus, ZArith
related to Code examples · 6
OCaml → Code, For, REPL, Snippets, The OCaml, This
related to Other derived languages · 5
OCaml → Facebook, JavaScript, JoCaml, NET, Reason
related to Summing a list of integers · 5
OCaml → Another, C's, Lists, Note, The

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Important terminology

language compiler caml code programming languages system function ml static type bytecode program use functional implementation first example libraries runtime

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
OCamlDesigned byXavier Leroy, Jérôme Vouillon, Damien Doligez, Didier Rémy, Ascánder Suárez1.00infobox
OCamlDeveloperInria1.00infobox
OCamlFamilyML: Caml1.00infobox
OCamlFilename extensions.ml, .mli1.00infobox
OCamlFirst appeared1996; 30 years ago (1996)1.00infobox
OCamlImplementation languageOCaml, C1.00infobox
OCamlLicenseLGPLv2.11.00infobox
OCamlOSCross-platform: Linux, Unix, macOS, Windows1.00infobox
OCamlParadigmsMulti-paradigm: functional, imperative, modular, object-oriented1.00infobox
OCamlPlatformIA-32, x86-64, Power, SPARC, ARM 32-64, RISC-V1.00infobox
OCamlStable release5.5.0 / 19 June 2026; 2 months ago (19 June 2026)1.00infobox
OCamlTyping disciplineInferred, static, strong, structural1.00infobox
OCamlWebsiteocaml.org1.00infobox
OCamlis afree and open-source software project managed and principally maintained by the French Institute for Research in Computer Science and Automation0.90text

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