1. Redom
Redom JavaScript library for creating user interfaces for small project web application library. personally, I'm using this library for learning for a big library like react and angular.js
2. Pill
Pill adds dynamic content loading to static sites and makes content loading smooth for users. It's pretty small, only 1 KiB minified and gzipped. It fits perfectly for static sites with web components. Personally, I'm using it in my new project. The pill is an old library. But work perfectly.
3. MultiLayoutSlideshow
are you create a slideshow on your website. Make use one time on your website. You never forget this library because this library works with anime.js.
4. Anime.js
anime.js best library in my life because of every web project I'm using it. anime.js Animate multiple CSS transforms properties with different timings simultaneously on a single HTML element.
5. Laxxx.js
Simple & lightweight javascript plugin to create smooth & beautiful animations when you scroll web page on your website.