showdownjs / showdown
A bidirectional Markdown to HTML to Markdown converter written in Javascript
showdownjs / showdown
mholt / PapaParse
Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
acornjs / acorn
A small, fast, JavaScript-based JavaScript parser
faisalman / ua-parser-js
UAParser.js: The Essential Web Development Tool for User-Agent Detection. Detect Browsers, OS, Devices, Bots, Apps, AI Crawlers, and more. Run in Browser or Node
terser / terser
🗜 JavaScript parser, mangler and compressor toolkit for ES6+
bytedance / xgplayer
A HTML5 video player with a parser that saves traffic
ljharb / qs
A querystring parser and serializer with nesting support
bowser-js / bowser
a browser detector
expressjs / body-parser
Node.js body parsing middleware
npm / node-semver
The semver parser for node (the one npm uses)
adaltas / node-csv
Full featured CSV parser with simple api and tested against large datasets.
NaturalIntelligence / fast-xml-parser
Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.
micromark / micromark
small, safe, and great commonmark (optionally gfm, mdx) compliant markdown parser
itteco / iframely
The URL engine behind Iframely. Self-hosted parsers that turn links into metadata, previews and embeds.
commonmark / commonmark.js
CommonMark parser and renderer in JavaScript
ruimarinho / google-libphonenumber
The up-to-date and reliable Google's libphonenumber package for node.js.
APIDevTools / swagger-parser
Swagger 2.0 and OpenAPI 3.0 parser/validator
uhop / stream-json
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.
peggyjs / peggy
Peggy: Parser generator for JavaScript
kewisch / ical.js
Javascript parser for ics (rfc5545) and vcard (rfc6350) data
mattiasw / ExifReader
A JavaScript Exif info parser.
EricSmekens / jsep
JavaScript Expression Parser
hyparam / hyparquet
parquet file parser for javascript
spencermountain / wtf_wikipedia
a pretty-committed wikipedia markup parser
ua-parser / uap-core
The regex file necessary to build language ports of Browserscope's user agent parser.
coderaiser / putout
🐊 Pluggable and configurable JavaScript Linter, code transformer and formatter with superpowers 💪: built-in support of js, jsx, ts, markdown, yaml, toml, json and ignore. Write declarative codemods in a simplest possible way 😏
rdfjs / N3.js
Lightning fast, spec-compatible, streaming RDF for JavaScript
pietheinstrengholt / rssmonster
Modern, self-hosted RSS reader with smart folders, powerful search, and a clean three-pane reading experience. Built with Vue and Express.
glayzzle / php-parser
NodeJS PHP Parser - extract AST or tokens
yargs / yargs-parser
:muscle: the mighty option parser used by yargs
nodeca / argparse
CLI arguments parser for node.js. JS port of python's argparse module.
jcubic / lips
Scheme based powerful lisp interpreter in JavaScript
rhpaiva / cssv
CSSV is CSV data with a CSS stylesheet at the top of the same file. One plain-text file renders as a styled HTML table in any browser.
PensiveFei / deep-read-summarize
Deep reading & summarization workflow for books/papers/videos/web — plugin parsers, MapReduce deep-read, JSON Schema output, Obsidian-ready (DSH)
Aaqibhafeezkhan / DeHTML
Modern React and Vite toolkit for stripping HTML, encoding and decoding entities, formatting HTML, and comparing code with a built-in diff viewer. GitHub topics