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.
CSS/LESS/SCSS fast and minimalistic parser
Swagger 2.0 and OpenAPI 3.0 parser and validator for Node and browsers
TypeScript definitions for git-diff-parser
The Guacamole javascript client
Incremental Markdown parser that consumes and emits Lezer trees
Highlighting system for Lezer parse trees
An evented streaming XML parser in JavaScript
HyperFormula is a JavaScript engine for efficient processing of spreadsheet-like data and formulas
Math and string formula parser.
Implementation of JSON Merge Patch (RFC 7396)
Fast Javascript text diff
Parse git patches with ease
TypeScript definitions for conventional-commits-parser
Parse CSS media queries (spec-compliant)
Support for `import <defer|source>` phase syntax in Acorn
An evented streaming XML parser in JavaScript
Parser for the content attribute of the meta viewport
IIIF Vocabulary
A TOML parser that produces output compatible with ESLint
Unified diff parser
TypeScript definitions for ua-parser-js
Transforms css values and at-rule params into the tree
No-dependencies, low-level, high-performance JIT code generation package for JavaScript