Google Material Inspired Time Picker Component – timepicker-ui
A vanilla JavaScript library to create a customizable, beautiful, mobile-friendly time picker component inspired by Google Material design system.
Date & Time
Accessible Customizable Date/Time/Date Picker for Modern Web App – FDatepicker
An accessible and customizable vanilla JavaScript datepicker with range, multiple select, and timepicker features.
Elegant Accessible Date Range Picker In JavaScript – Hotel Datepicker
A simple, flexible, customizable, accessible, and multilingual date range picker written in pure JavaScript.
Add Events To Apple/Google/Yahoo/MicroSoft Calendars – atcb.js
A JavaScript library that lets you add custom events to popular calendars and automatically generates iCal/ics files for Apple.
Lightweight Accessible Date Picker Component – WC Datepicker
A lightweight, accessible, customizable, multilingual, and framework-agnostic date picker & date range picker component written in pure JavaScript (TypeScript).
Vanilla JS Date Picker with Range Selection – EssealDatePicker
Zero‑dependency date picker that works with any framework. Includes min/max dates, custom formatting, and programmatic control.
Convert Human-readable Duration Strings to Milliseconds
Convert timeout strings to milliseconds in JavaScript. Handles “2 days 5 hours” format. Perfect for cache TTLs and rate limits.
Human-friendly Relative Time Formatter – human-time
A zero-dependency JavaScript library that converts timestamps into human-readable formats like “just now” or “3 days ago” for modern apps.
Simple Multilingual Calendar Component With Vanilla JavaScript
A tiny clean calendar in Vanilla JavaScript. Key features include custom holidays, multiple date selection, inbuilt language support, and minified size of only 9kb.
Handle Holidays in JavaScript With Ease – best-holiday
A lightweight JavaScript library for holiday handling. Add holiday functionality to your web apps with ease.