A JavaScript parser built from the Hermes engine

Flow types for the Javascript AST

JavaScript parser written in OCaml. Produces ESTree AST

Babel transform for Flow Enums.

Parse, validate, traverse, transform, and optimize Oniguruma regular expressions

AST utility module for statically analyzing JSX

A modern CSS parser and stringifier with TypeScript support

AST-aware v8-to-istanbul

A toolkit for JavaScript codemods

AST utils for webassemblyjs

A toolkit for easy Babel AST generation and manipulation.

Oxc Parser Node API

Generate regular expressions from regjsparser’s AST.

Transform HAST to Babel AST (JSX)

Typed AST toolkit for JavaScript and TypeScript ESTree trees: walker, builders, guards, and syntactic utilities

A library for analysing JS RegExp

Collection of useful helper functions when trying to determine module type (CommonJS or AMD) properties of an AST node.

Search and Rewrite code at large scale using precise AST pattern

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

Tooltip and Popover Positioning Engine