The countdown timer is a web technology that displays a clock counting down from a specified date (time) to zero. Typically used for coming soon page, product promotion page, etc.
In this post, you will find the 7 best countdown timers written in pure JavaScript we published on CSSSCRIPT.COM. Enjoy.
Originally Published Jan 2019, updated Feb 11, 2023
1. Classic Flip Clock Style Countdown & Counter Library – flip.js
flip.js is an open-source, fully customizable, pretty nice, classic flip clock style countdown & counter component in vanilla JavaScript and CSS.
2. easytimer.js
easytimer.js is an easy-to-use Timer/Countdown/Chronometer library built in pure JavaScript that allows to count up to or countdown from a given value with callback support.
3. Retro Flipping Countdown Timer In JavaScript – flipdown.js

A lightweight, responsive, high-performance countdown plugin to create a retro-style flipping countdown clock that shows how many days/hours/minutes/seconds until an event you provide.
4. countdown-flip-timer
A flip countdown timer written in Vanilla JS.
5. Easy Datetime Countdown Timer – Countdown.js
An easy-to-style countdown timer implementation in pure JavaScript. It will display EXPIRED when the countdown is over.
6. canvas-circular-countdown
Draw a configurable circular canvas countdown timer.
7. Simple Countdown Timer In Vanilla JavaScript – ysCountDown.js

A simple JavaScript countdown timer plugin for counting time down in DAYS, HOURS, MINUTES, SECONDS.
More Resources:
Looking for more JavaScript solutions to create countdown timers on modern web applications? Here are some resources you might find useful: