Easy Timer/Countdown/Chronometer Library – easytimer.js
easytimer.js is an easy-to-use JavaScript library that allows to count up to or countdown from a given value with callback support.
JavaScript & CSS countdown
Modern Countdown Timer In Vanilla JavaScript – Ls Countdown
The Ls Countdown library lets you create a modern, configurable countdown timer for coming soon, under construction, maintenance mode pages.
Flip Countdown Clock With JS And CSS3 – Countdown.js
A pure JavaScript countdown clock that makes uses of CSS3 to flip days/hours/minutes/seconds slots when counting down.
Minimal Countdown Timer In Vanilla JavaScript – Timers.js
Timers.js is a lightweight, dependency-free JavaScript library for creating a minimal, clean, controllable countdown timer on the page.
Countdown Timer Plugin With Pure JavaScript – TimezZ
This is the standalone version of the jQuery TimezZ plugin that lets you create a customizable countdown timer in days:hours:minutes:seconds format.
Flipping Countdown Clock With JavaScript And CSS – countDown.js
countDown.js is a dependency-free JavaScript library for creating a countdown timer just like the retro looking flip clock.
Easy Datetime Countdown Timer – Countdown.js
An easy-to-style countdown timer implementation in pure JavaScript. It will display EXPIRED when the count down is over.
Simple Countdown Timer In Vanilla JavaScript – ysCountDown.js
ysCountDown.js is a simple JavaScript countdown timer plugin for counting time down in DAYS, HOURS, MINUTES, SECONDS.
Pure JavaScript Digital Countdown Timer – Countdown Module
Countdown Module is a pure JavaScript library that uses CSS animations to create a beautiful, 7-segment digital countdown timer for your web app.
Circular Countdown Timer In JavaScript And CSS3
A minimal countdown timer with a SVG based circular countdown indicator, implemented in pure JavaScript and CSS/CSS3.