Ferret Documentation

Ferret is a programmable data extraction runtime and query language for turning pages, documents, APIs, and browser state into structured data. These docs are organized around the path from first query to production tooling.

Explore What Is Ferret? Learn what Ferret is, how it works, and where it fits. Setup Install Ferret Get the CLI, or add Ferret to a Go application. Try Run your first script Execute a Ferret script against static or dynamic content. Learn Learn the language basics Understand variables, expressions, collections, control flow, and functions. Learn Standard library Functions and types available to every Ferret script. Look up Language reference Find details on language features, built-in functions, modules, and runtime behavior.