Parse, validate, traverse, transform, and optimize Oniguruma regular expressions
Low footprint ECMAScript source code parser
Parse CSS media query lists.
HTML to React parser.
Oxc Parser Node API
npm query parser and tools
An evented streaming XML parser in JavaScript
A parser to Amazon Resource Names
Fault-tolerant CSS parser for PostCSS
Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment
Streaming SAX-style HTML parser.
Fast & forgiving HTML/XML parser
Error-tolerant ECMAScript parser
Angular Template parser for ESLint
A javascript library to extract Exif metadata from images, in node and in the browser.
Streaming, source-agnostic EventSource/Server-Sent Events parser
Streaming CSV parser that aims for maximum speed as well as compatibility with the csv-spectrum test suite
Syntax tree data structure and parser interfaces for the lezer parser
A micro-library of stream components for building custom JSON and JSONC processing pipelines with a minimal memory footprint — parse, filter, and transform JSON far larger than available memory with a SAX-inspired token API, on Node.js or Web Streams.
Javascript Redis protocol (RESP) parser
CSS Object Model implementation and CSS parser
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
Support for `import <defer|source>` phase syntax in Acorn
TypeScript definitions for set-cookie-parser