40+ Awesome CSS Calendar Effects Collection (Projects and Codes) in 2025

CSS Winter Animation Calendar

A calendar with beautiful subtle animation made in CSS featuring a beautiful night in the mountains with moon and twinkling stars in the clear sky.

datera

Datera.js is a versatile library for date input and selection, providing flexible configuration options like initial selected dates, year ranges, disabled/enabled dates, start day of the week, and themes for styling.

CSS Grid Advent Calendar

Flat CSS Calendar

Minimal Vanilla JavaScript Calendar Component

vanilla-js-calendar

:calendar: A vanilla JavaScript calendar.

jquery-bs-calendar

The event calendar was created with JQuery and Boostrap 5. It does not need any additional CSS file. The calendar can be included in all Boostrap elements (.card, .navbar, .offcanvas, .dropdowns, ...).

iCalendar

Simple iPhone styled Vanilla JavaScript Calendar Library

timetable.js

Vanilla javascript plugin for building nice responsive timetables

salsa-calendar

salsa-calendar is a simple, standalone JavaScript library created to generate date (range) pickers for hotel booking applications.

pureJSCalendar

Simple and clean JS Calendar solution for those who need to get rid of third-party libraries like JQuery. Easily localizable calendar with allowed date spread and with the first day of the week selection.

dropdown-calender

JavaScript library to create HTML dropdown select option for Dates, Months and Years

jsCalendar

Just a simple javascript calendar

niceDatePicker

Nice DatePicker with support for date ranges and no jquery dependency, easy styling and more.

tiny-picker

TinyPicker is a tiny yet customizable date picker library that makes it easier to select date ranges from a minimal clean calendar popup. With no 3rd dependencies like jQuery, moment.js, etc.

datepickk

Simple, beautiful and powerful datepicker!

md-date-time-picker

An implementation of Material Design Picker components in vanilla CSS, JS, and HTML

pure-javascript-calendar-component

A basic calendar component written in ES6/LESS that displays a pretty clean calendar UI on your web application.

rolyart-calendar

ES6 - Simple pure JavaScript calendar

js-calendar

Calendar UI Design with Dark Mode and Animation Using HTML CSS JavaScript

js-datepicker

A simple, lightweight, configurable date picker that works with the input field and is written in pure JavaScript/CSS.

caleandar

A lightweight, library independent JavaScript calendar

calendarize

Vanilla Javascript Plugin to Create Calendars

foopicker

JavaScript date picker plugin

DateTimePickerComponent

A responsive, multilingual, feature-rich, and easy-to-customize date, time, and date range picker component written in JavaScript.

bulma-calendar

Bulma's extension to display a calendar

calendarHTML-Javascript

Generate a minimal, clean, easy-to-style calendar using plain JavaScript and HTML.

DatePickerX

Cool light visual date picker using native JavaScript

calendar-base

Base methods for generating calendars using JavaScript.

contributions-calendar

contributions-calendar.js is a JavaScript library that helps you create a Github-style calendar heatmap (aka contributions calendar) to visualize time series data.

CalendarPickerJS

A minimalistic and modern date-picker component/library Written in Vanilla JS