Prism

A portable, error-tolerant Ruby parser

Try it

Parse Ruby code in your browser — no installation required.

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Getting started

Prism is bundled with CRuby 3.3+ and available as a gem for earlier versions.

gem install prism

API Reference

C Reference

Core library API documentation

Ruby

Ruby Reference

Ruby gem API documentation

Rust

Rust Reference

Rust crate API documentation

Java

Java Reference

Java package API documentation

Guides

AST mapping Build system Configuration Design Encoding Parser translation Ruby API Serialization