Reason

Reason, also known as ReasonML, is a programming language and toolchain that is part of the OCaml programming language ecosystem. Reason uses many syntax elements from JavaScript, compiles to native code using OCaml's compiler toolchain, and can compile to JavaScript using the Melange compiler. Wikipedia

Created Year: 2016
Developed by: Meta Platforms
Operating systems: cross-platform
Implemented in: OCamlRakuReason
Aliases: ReasonML
File extensions: re, rei

Wikidata: Q63565848

Influenced: ReScript

Influenced by: OCaml

Programming paradigms: functional programming

Language types: implementation of a programming language

Reason Influence Network

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Latest data update: 2026-06-24