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
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.
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.
Feature-rich Countdown/Clock/Timer In Vanilla JavaScript – W3FClockTimer
W3FClockTimer is a feature-rich JavaScript to create countdown, clock, timer components on the app.
Retro Flipping Countdown Timer In JavaScript – flipdown.js
A retro-style flipping countdown clock that shows how many days/hours/minutes/seconds until an event you provide.
Scroll-triggered Counter Plugin – purecounterjs
A pure JavaScript counter plugin which counts down or counts up towards to a specific point when the counter is scrolled into view.
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.
Draw Animated Circles From A Given Angle Or Value – Circles.js
Circles.js is a vanilla JavaScript plugin used to draw animated, mobile-friendly circles from a given angle or percentage value using Canvas.
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.