Flat Style JavaScript Date Picker – flatpickr
flatpickr is a powerful and customizable JavaScript library which enables the visitor to pick a date/time/date range from a calendar.
JavaScript & CSS date range picker
Vanilla JavaScript Date & Date Range Picker For The Web
This is a flexible, powerful, accessible, multi-language, framework-agnostic date & date range picker for modern web design.
Tiny Event Calendar & Date Picker In JavaScript – TavoCalendar
TavoCalendar is a Vanilla JavaScrip based inline calendar where the users are able to select a date (or a date range) or view events with mouse click.
Flexible Date Range Picker With Moment.js – lightPick.js
lightPick.js is a JavaScript library to lets you create a flexible, customizable, multi-language, user-friendly date range picker component using moment.js.
Tiny Customizable Date Range Picker – TinyPicker
TinyPicker is a tiny yet customizable date picker library that makes it easier to select date ranges from a minimal clean calendar popup.