JSPM

the complete solution for node.js command-line programs

YAML 1.2 parser and serializer

CLI arguments parser. Native port of python's argparse.

yargs the modern, pirate-themed, successor to optimist.

the mighty option parser used by yargs

Tool for transforming styles with JS plugins

A JavaScript parser

JavaScript parser and stringifier for YAML

parse argument options

A parser that converts TypeScript source code into an ESTree compatible form

An Esprima-compatible JavaScript parser built on Acorn

A very strict and proper argument parser.

Utility to parse a string bytes to bytes and vice-versa

JSON.parse with context information on error

A super light and fast circular JSON parser.

Maps lines and columns to character offsets and back.

HTML parser and serializer.

An ESLint custom parser which leverages TypeScript ESTree

Transforms css values and at-rule params into the tree

ECMAScript parsing infrastructure for multipurpose analysis

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

Regular expression parser for ECMAScript.

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

Range header field string parser

CLI app helper

CSS Object Model implementation and CSS parser

Fast & forgiving HTML/XML parser

WebAssembly binary format parser

JavaScript parser, mangler/compressor and beautifier toolkit

Small footprint URL parser that works seamlessly across Node.js and browser environments

The RAW rational numbers library

A light, featureful and explicit option parsing library.

small commonmark compliant markdown parser with positional info and concrete tokens

Lightweight browser detector

A modern CSS parser and stringifier with TypeScript support

Tokenizes a string that represents a regular expression.

Postgres bytea parser

Parse Postgres interval columns

Parse postgres array columns

CSS Object Model implementation and CSS parser

JSON.parse with context information on error

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

PNG encoder/decoder in pure JS, supporting any bit size & interlace, async & sync with full test suite.

Tooling which enables you to use TypeScript with ESLint

Extract meaning from JS Errors

Regular expression parser for ECMAScript.

Highly configurable, well-tested, JavaScript-based HTML minifier.

👑 A tiny yet powerful tool for high-performance color manipulations and conversions

Parse CSS color values

The fast, flexible & elegant library for parsing and manipulating HTML and XML.

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

Postgres date column parser

Parse CSS inline style to JavaScript object.

A promise based streaming tokenizer

An inline style parser.

Parses set-cookie headers into objects

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

Class for creating AST nodes.

htmlparser2 tree adapter for parse5.

Parse raw conventional commits.

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

Quickly scan for CLI flags and arguments

Create a JSON-friendly object from an SVG string

Math and string formula parser.

Javascript Redis protocol (RESP) parser

A module that parses a string as regular expression and returns the parsed value.

A bson parser for node.js and the browser

Lax URL parsing with support for protocol-less URLs and IPs

Markdown-it - modern pluggable markdown parser.

Binary plist parser.

Reverse minimist. Convert an object of options into an array of command-line arguments.

Leaner CSS

Regular Expressions parser in JavaScript

Formats ICU Message strings with number, date, plural, and select placeholders to create localized messages.

[](https://www.npmjs.com/package/jsdoc-type-pratt-parser) []

Fault-tolerant CSS parser for PostCSS

Utilities for the snapdragon parser/compiler.

Glob to regular expression with support for extended globs

Pollyfill for node.js `path.parse`, parses a filepath into an object.

Fast Color Parsing and Manipulation

Node.js library for parsing crontab instructions

Parse the Forwarded header (RFC 7239) into an array of objects

A JavaScript parser

a set of utilities to work with JSON / JSON5 documents

Parse and stringify JSON with comments. It will retain comments even after saved!

A parser for the TypeScript doc comment syntax

Parse CSS media query lists.

Smooth (CLI) operator 🎶

Parses every stack trace into a nicely formatted array of hashes.

Streaming HTML parser with scripting support.

SCSS parser for PostCSS

A small, fast, and correct TOML parser/serializer

A CSS property value parser for use with PostCSS

base library for oclif CLIs

YAML 1.2 parser and serializer

Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.

CSS parser / stringifier

Generic JSDoc-like comment parser

A fast alternative to legacy querystring module

Simple, fast, powerful parser toolkit for JavaScript.

A low level git url parser.

Parse EditorConfig-INI file contents into AST

Apple's property list parser/builder for Node.js and browsers

Big-friendly JSON. Asynchronous streaming functions for large JSON data sets.

Maintained replacement for ESLint's deprecated SourceCode#getJSDocComment along with other jsdoc utilities

A loader for the tsdoc.json file

A mature, feature-complete library to parse command-line options.

A very fast HTML parser, generating a simplified DOM, with basic element query support.

CSS selectors parser

Simple, transparent parser combinators toolkit that supports any tokens

Light-weight option parsing with an argv hash. No optstrings attached.

Clean up user-submitted HTML, preserving allowlisted elements and allowlisted attributes on a per-element basis

Chevrotain is a high performance fault tolerant javascript parsing DSL for building recursive decent parsers

asn1js is a pure JavaScript library implementing this standard. ASN.1 is the basis of all X.509 related data structures and numerous other protocols used on the web

CSV parser and writer

Manipulate SVG path data (path[d] attribute content) simply and efficiently.

fast-csv parsing package

Check if an input value is a ssh url or not.

Encode/decode DNS-SD TXT record RDATA fields

Trigger functions and/or evaluate cron expressions in JavaScript. No dependencies. Most features. All environments.

Streaming SAX-style HTML parser.

Highly configurable, well-tested, JavaScript-based HTML minifier.

WebAssembly text format parser

A convertor between XML text and Javascript object / JSON text.

the acorn javascript parser, preloaded with plugins for syntax parity with recent node versions

Type-safe CLI library / framework with no runtime dependencies

stream-json is the micro-library of Node.js stream components for creating custom JSON processing pipelines with a minimal memory footprint. It can parse JSON files far exceeding available memory streaming individual primitives using a SAX-inspired API. I

Robust, expressive, and feature-rich CSS superset

Better TOML parsing and stringifying all in that familiar JSON interface.

No nonsense protocol buffers schema parser written in Javascript

JSON, JSONC and JSON5 parser for use with ESLint plugins

Parses JavaScript objects into XML

A JSON polyfill for older JavaScript platforms.

A very simple and stupid parser, based on a statemachine and regular expressions.

Parse CSS Cascade Layer names.

Extremely fast implementation of node core url library

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

Parser/validator for OpenAPI 3.x definitions

Parse front-matter from a string or file. Fast, reliable and easy to use. Parses YAML front matter by default, but also has support for YAML, JSON, TOML or Coffee Front-Matter, with options to set custom delimiters. Used by metalsmith, assemble, verb and

Streaming HTML rewriter.

parse shorthand css font strings"

npm query parser and tools

Useful functions when working with JSON.

https://github.com/deanm/css-color-parser-js

parse arguments with recursive contexts

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

Math and string formula parser.

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.

TOML parser for Node.js (parses TOML spec v0.4.0)

HTML to React parser.

HTML to DOM parser.

Parse repository URLs to extract, SCM platform, domain, user, and project information.

Indent-based CSS syntax for PostCSS

A flexible math expression evaluator

Useful functions when working with YAML.

A very fast streaming multipart parser for node.js

A CSS-based selector parser for React Standard Tree (RST) traversal

A lightweight XML Document class for JavaScript.

Streaming CSV parser that aims for maximum speed as well as compatibility with the csv-spectrum test suite

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

Properties file reader for Node.js

Parse, validate, traverse, transform, and optimize Oniguruma regular expressions

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

Git/Subversion/Mercurial repository metadata parser

svg path parser

Fast and easy parser of statements in source code in any language ✂️

LESS parser for PostCSS

Fast and easy parser for declarations of import and export in ECMAScript/TypeScript

MermaidJS parser

DOMParser.parseFromString for XML with IE8 fallback

A specification compliant robots.txt parser with wildcard (*) matching support.

A YAML parser that produces output compatible with ESLint

Parses a Regular Expression and outputs an AST

request body parsing for co

A complex numbers library

Standalone CSS Selector Finder and Parser.

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

Oxc Parser Node API

A decent CSS parser

Convert cron expressions into human readable descriptions

lightweight rgb/rgba to hex parser

A mature CSV toolset with simple api, full of options and tested against large datasets.

Parse HTML/XML to PostHTMLTree

Parses a Regular Expression and outputs an AST

LL(*) lookahead strategy for the Chevrotain parser library

Oxc Parser Node API

A tokenzier for Sass' SCSS syntax

Extremely fast implementation of node core url library

An AST parser for ICU MessageFormat strings

Latin-script (natural language) parser

parse the test anything protocol

Oxc Parser Node API

CSS value parser

CSS parser

Unified diff parser

An email address parser based on rfc5322

Create parsers using parser combinators with helpful error messages

Parse CSS media queries (spec-compliant)

Mathematical expression evaluator

Style function for css-in-js building component libraries

A blazing fast ES module imports parser.

HTML/XML processor

XML Serialization and Parsing module based on Python's ElementTree.

Fastest, most accurate & effecient user agent string parser, uses Browserscope's research for parsing

Parse argument options

A document path library for Node

Markdown parser, done right. 100% Commonmark support, extensions, syntax plugins, high speed - all in one.

A 100% compliant, self-hosted javascript parser with high focus on both performance and stability

A TOML parser that produces output compatible with ESLint

A JSON to CSV and CSV to JSON converter that natively supports sub-documents and auto-generates the CSV heading.

Multipart parser

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

Find all require() calls. Fast and solid implementation backed with direct scanner and esprima AST parser

cjson - Commented JavaScript Object Notation. It is a json loader, which parses only valid json files, but with comments enabled. Useful for loading configs.

Parse a XML string into a proprietary syntax tree

JavaScript runtime for ANTLR4

A parser for ANSI escape sequences

Svelte parser for ESLint

TypeScript powered ICU message parser.

create matching selectors from css for your very own nested object hierarchy

Parse, normalize and validate given semver shorthand (e.g. gulp@v3.8.10) to object.

A parser & formatter for ICU NumberFormat skeleton strings & patterns

Parse the accept-language header from a HTTP request

Base64 and base64url to string or arraybuffer, and back. Node, Deno or browser.

.properties parser/stringifier

JSON AST parser

XML Parser Implemented in JavaScript

ECMAScript parsing infrastructure for multipurpose analysis

transform stream to tokenize html

Oboe.js reads json, giving you the objects as they are found without waiting for the stream to finish

lightweight JavaScript APG parser

Build an absolute URL from a base URL and a relative URL (RFC 1808). No dependencies!

OpenAPI Path Templating parser, validator, resolver and matcher.

Converts a XML string into a human readable format (pretty print) while respecting the xml:space attribute

Convert XML to JSON - Fast & Simple

OpenAPI Server URL templating parser, validator and substitution mechanism.

Vega expression parser and code generator.

RFC 6265 compliant cookie parser, validator and serializer.

A parser & formatter for ICU DateFormat skeleton strings

A Koa body parser middleware. Supports multipart, urlencoded and JSON request bodies.

PostCSS syntax for template literals CSS-in-JS (e. g. styled-components).

RCF 6901 implementation of JSON Pointer

simple node sql parser

Music metadata parser for Node.js, supporting virtual any audio and tag format.

Command Line tool for i18next

Swagger 2.0 and OpenAPI 3.x parser and validator for Node and browsers

Extract meaning from JS Errors

Parse a github git url and return the github repo url

The core API for working with loaders.gl loaders and writers

A PEG.js parser for ICU MessageFormat strings