ReScript

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Freedom report

No signalScore 5.0

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

ReScript is ranked #26 of 28 in code transpilers on Freedom251. It runs on Web.

Compared on code transpilers

CLI access: Yes
Conversion mode: source-to-source

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The record

What it does: ReScript is a strongly typed language that compiles to clean, efficient JavaScript.
Type system: The maker says every ReScript app is fully typed and describes its type system as having no `any` types.
Build speed: ReScript describes its compiler and build system as designed for fast feedback loops across codebases of any size.
JavaScript interop: ReScript can use JavaScript libraries, export ReScript libraries to JavaScript, and automatically generate TypeScript types.
Gradual adoption: The maker says ReScript can be added to an existing JavaScript project and removed later while retaining the generated JavaScript output.
Project templates: The official project generator provides starter projects for Next.js or Vite with React and Tailwind CSS.
Runtime and package managers: The installation guide requires Node.js version 22 or later and lists npm, yarn, pnpm, bun, and deno as package manager options.
Editor support: The editor plugin provides syntax highlighting, autocomplete, type hints, formatting, code navigation, and code analysis; the guide lists VS Code, Vim/Neovim, and Zed.
Community supported editors: The editor guide lists IntelliJ IDEA and Emacs as community supported and says they are not officially supported.
React integration: The `@rescript/react` package provides bindings for React, ReactDOM, ReactDOMServer, React events, and other React modules.
Security analysis: The editor code analyzer can detect dead code and unhandled exceptions, and the guide notes that its exception analysis does not understand generic exceptions.
Open source and organization: The ReScript Association describes ReScript as an open source platform and says it supports development of the language and its OCaml technical foundation.
Intended users: The maker describes ReScript as suitable for JavaScript, Node, and ReactJS applications, including mission-critical products.
Founded: 2015

Where it ranks on Freedom251

Best Code Transpilers in 2026#26 of 28

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Sources

rescript-lang.org· checked 4 Oct 2026
rescript-lang.org/docs/manual/installation/· checked 4 Oct 2026
rescript-lang.org/docs/manual/editor-plugins· checked 4 Oct 2026
rescript-lang.org/docs/react/installation/· checked 4 Oct 2026
rescript-association.org· checked 4 Oct 2026