Math and string formula parser.

Webpack plugin to inline critical CSS and lazy-load the rest.

Extract the minimal CSS used in a set of URLs with puppeteer

CSV parsing implementing the Node.js `stream.Transform` API

Oxc Parser Node API

webhint parser needed to analyze CSS files

A temporary custom copy of https://github.com/csstree/csstree

webhint parser needed to analyze SASS and SCSS files

Swagger 2.0 and OpenAPI 3.0 parser and validator for Node and browsers

Create a JSON-friendly object from an SVG string

Regular Expressions parser in JavaScript

modern OpenAPI parser written in TypeScript

webhint parser needed to analyze LESS files

Hand-written ICU MessageFormat parser with compatible output as [`intl-messageformat-parser`](https://www.npmjs.com/package/intl-messageformat-parser) but 6 - 10 times as fast.

A PostCSS plugin that takes existing CSS files and splits out the annotated critical styles into a seperate file.

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.

Parser for Github, GitLab and Bitbucket issues actions, references and mentions

A TOML parser that produces output compatible with ESLint

A small, fast, and correct TOML parser/serializer

Parse binary files with a schema into nicely readable objects