Parse a wide range of date formats including human-input dates

Simple and barebones date parsing/transformation

SDP parsing and serialization utilities

An RFC 3986/3987 compliant, scheme extendable URI/IRI parsing/validating/resolving library for JavaScript.

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Modern JavaScript date utility library

Headless calendar library by the makers of FullCalendar

Parse, validate, manipulate, and display dates

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

Library to work against complex domain names, subdomains and URIs.

Date parsing for genealogical data

Node/Js-module for parsing and making sense of ISO8601-durations

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

Simple yet powerful framework for building command-line apps.

css color parsing, manupulation and conversion

Parser and generator for CSS color strings

SQL ConnectionString parser

Rust grammar for tree-sitter

date-fns timezone utils

A library of styleable components built using React Aria