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.

ProseMirror Markdown integration

A JavaScript parser

A zero-dependency HTML5 document parser.

the mighty option parser used by yargs

YAML 1.2 parser and serializer

A robust, strictly-typed Node.js and Browser library for parsing office files (.docx, .pptx, .xlsx, .odt, .odp, .ods, .pdf, .rtf, .csv, .md, .html, .epub) and generating high-fidelity outputs in Markdown, HTML, CSV, RTF, PDF, EPUB, and RAG-focused chunks.

Range header field string parser

An ESLint custom parser which leverages TypeScript ESTree

Multi-panel Markdown document parser (*.mdp format)

Mixpad document parser and management

Create a JSON-friendly object from an SVG string

Document parser for draft

Convert attachments to Markdown with Microsoft MarkItDown and register as a Document Parser internal handler.

Validate XML, Parse XML, Build XML without C/C++ based libraries

Simple, fast, powerful parser toolkit for JavaScript.

Algorithms to help you parse CSS from an array of tokens.

An inline style parser.

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

An AsyncAPI schema parser for Avro 1.x schemas.