JSPM

Javascript Redis protocol (RESP) parser

Quickly scan for CLI flags and arguments

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

Leaner CSS

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

Markdown-it - modern pluggable markdown parser.

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

Parse raw conventional commits.

Fault-tolerant CSS parser for PostCSS

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

A bson parser for node.js and the browser

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

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

Create a JSON-friendly object from an SVG string

Regular Expressions parser in JavaScript

Utilities for the snapdragon parser/compiler.

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

Node.js library for parsing crontab instructions

Fast Color Parsing and Manipulation

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

Binary plist parser.

A JavaScript parser

a set of utilities to work with JSON / JSON5 documents

Glob to regular expression with support for extended globs

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

SCSS parser for PostCSS

A small, fast, and correct TOML parser/serializer

Streaming HTML parser with scripting support.

A CSS property value parser for use with PostCSS

YAML 1.2 parser and serializer

CSS parser / stringifier

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

Parse EditorConfig-INI file contents into AST

A parser for the TypeScript doc comment syntax

Parse CSS media query lists.

A low level git url parser.

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

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

Smooth (CLI) operator 🎶

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

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

Simple, transparent parser combinators toolkit that supports any tokens

Generic JSDoc-like comment parser

base library for oclif CLIs

A fast alternative to legacy querystring module

CSV parser and writer

Simple, fast, powerful parser toolkit for JavaScript.

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

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

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

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

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

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

A loader for the tsdoc.json file

CSS selectors parser

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

WebAssembly text format parser

Streaming SAX-style HTML parser.

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

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

Type-safe CLI library / framework with no runtime dependencies

fast-csv parsing package

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

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

No nonsense protocol buffers schema parser written in Javascript

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

Robust, expressive, and feature-rich CSS superset

JSON, JSONC and JSON5 parser for use with ESLint plugins

Parses JavaScript objects into XML

A JSON polyfill for older JavaScript platforms.

Encode/decode DNS-SD TXT record RDATA fields

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

Extremely fast implementation of node core url library

Parser/validator for OpenAPI 3.x definitions

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

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

parse shorthand css font strings"

Streaming HTML rewriter.

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

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

HTML to DOM parser.

Math and string formula parser.

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

HTML to React parser.

Indent-based CSS syntax for PostCSS

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

Parse CSS Cascade Layer names.

npm query parser and tools

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

Useful functions when working with YAML.

Useful functions when working with JSON.

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

parse arguments with recursive contexts

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.

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

Properties file reader for Node.js

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

A lightweight XML Document class for JavaScript.

A very fast streaming multipart parser for node.js

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

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

svg path parser

LESS parser for PostCSS

MermaidJS parser

Git/Subversion/Mercurial repository metadata parser

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

A flexible math expression evaluator

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

A complex numbers library

A YAML parser that produces output compatible with ESLint

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

Parses a Regular Expression and outputs an AST

lightweight rgb/rgba to hex parser

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

Convert cron expressions into human readable descriptions

Parse HTML/XML to PostHTMLTree

A tokenzier for Sass' SCSS syntax

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

DOMParser.parseFromString for XML with IE8 fallback

Extremely fast implementation of node core url library

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

LL(*) lookahead strategy for the Chevrotain parser library

request body parsing for co

Parses a Regular Expression and outputs an AST

Oxc Parser Node API

parse the test anything protocol

Oxc Parser Node API

CSS value parser

Latin-script (natural language) parser

An AST parser for ICU MessageFormat strings

An email address parser based on rfc5322

Create parsers using parser combinators with helpful error messages

Unified diff parser

Mathematical expression evaluator

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

Style function for css-in-js building component libraries

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

CSS parser

Parse argument options

A blazing fast ES module imports parser.

A document path library for Node

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

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

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

Parse CSS media queries (spec-compliant)

Multipart parser

A TOML parser that produces output compatible with ESLint

HTML/XML processor

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.

JavaScript runtime for ANTLR4

Parse a XML string into a proprietary syntax tree

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

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

Svelte parser for ESLint

TypeScript powered ICU message parser.

Parse the accept-language header from a HTTP request

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

ECMAScript parsing infrastructure for multipurpose analysis

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

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

lightweight JavaScript APG parser

transform stream to tokenize html

OpenAPI Path Templating parser, validator, resolver and matcher.

XML Parser Implemented in JavaScript

A parser for ANSI escape sequences

.properties parser/stringifier

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

A parser & formatter for ICU DateFormat skeleton strings

RFC 6265 compliant cookie parser, validator and serializer.

Convert XML to JSON - Fast & Simple

Vega expression parser and code generator.

A parser & formatter for ICU NumberFormat skeleton strings & patterns

JSON AST parser

Command Line tool for i18next

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

simple node sql parser

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

OpenAPI Server URL templating parser, validator and substitution mechanism.

A PEG.js parser for ICU MessageFormat strings

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

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

Strict JsDoc type expression parser.

Parse a github git url and return the github repo url

Parse parentheses from a string

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

Parse partial JSON generated by LLM

.properties file parser, editor, formatter and Webpack loader.

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

Framework-independent loader and writer for Draco compressed meshes and point clouds

NodeJS Excel files parser & builder

Extract meaning from JS Errors

(IEC) Utility to parse a string bytes to bytes and vice-versa

Lightweight utilities for encoding and decoding Solidity ABI

A Typescript wrapper around command-line-args with additional support for markdown usage guide generation

dates for humans

A plugin for the Acorn parser that understands the ES7 keywords async and await

Angular library that uses marked to parse markdown to html combined with Prism.js for synthax highlights

@astrojs/compiler to process synchronously.

A user interface for JSON.

Loader for Mapbox Vector Tiles

Parses JavaScript objects into XML. This is a fork of the original js2xmlparser, with some additional features

lexing json

Parse PHP code from JS and returns its AST

Turn a string of command line options into an array for child_process.spawn

Language tag parser

An object-oriented language for parsing and pattern matching

A lightweight JavaScript MP4 (MPEG-4, ISOBMFF) file/box parser.

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

parser for worldwide holidays

Easy to use efficient .GIF parsing in javascript

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

A parser and formatter for MongoDB URIs.

Parser for the BCP 47 language tag specification

Simple TCP connection string parser

Maintained fork of later. Determine later (or previous) occurrences of recurring schedules

Parse Vega specifications to runtime dataflows.

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

WebAssembly bindings to the Biome workspace API

Convert markdown into Slack-specific markdown

Astro component parser for ESLint

A tiny, super fast, namespace aware sax-style XML parser written in plain JavaScript

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

An absurdly small JSONC parser.

Regular expression matching for URL's. Maintained, safe, and browser-friendly version of url-regex. Resolves CVE-2020-7661. Works in Node v10.12.0+ and browsers.

Parse binary files with a schema into nicely readable objects

CSS selector parser based on jison

Yet another simple Postgres SQL parser/modifier

Safe parsing of CSON files

Oxc Parser Node API

easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.

Oxc Parser Node API

AST and parser for Fluent

Parse a function into an object using espree, acorn or babylon parsers. Extensible through Smart Plugins

reference implementation of conventionalcommits.org spec

The fastest in-browser CSV (or delimited text) parser for React. It is full of useful features such as CSVReader, CSVDownloader, readString, jsonToCSV, readRemoteFile, ... etc.

JavaScript APG, an ABNF Parser Generator

A CSS post-processor that generates pixel fallbacks for rem units.

An AsyncAPI schema parser for Avro 1.x schemas.

Javascript parser for ics (rfc5545) and vcard (rfc6350) data

XML Reader and Parser

An AsyncAPI schema parser for OpenAPI 3.0.x and Swagger 2.x schemas.

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

Schema to allow js-yaml to process YAML formatted CloudFormation templates that use short form syntax for intrinsic functions while parsing or dumping

A thin and strongly typed CLI arguments parser for Node.js.