Animated Extendable Counter In Vanilla JavaScript – finalcountdown
finalcountdown is a lightweight and easy JavaScript library for creating animated counters with formatting options and extendable graphical display options.
JavaScript & CSS counter
Vanilla JavaScript Count Up Library – count-up.js
count-up.js is a really small JavaScript library used for counting up towards a numeric value at a certain speed.
Minimalist Countdown Timer with timerJS.js
timerJS.js is a super tiny javascript counter library that counts down in in seconds, minutes, hours and days to any date/time.