Pest – Fast parser generator written in Rust

In plain words

Pest is a parser generator for Rust that emphasizes speed and simplicity. It allows developers to define grammars in a readable syntax and automatically generates parsers from those specifications. The tool is designed for Rust programmers who need to parse custom languages, configuration files, or structured data. Pest stands out for its performance-focused approach and straightforward grammar definition language that reduces boilerplate code compared to traditional parser generators.

written from the facts on this page · September 2026

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