t-scroll is a reveal-on-scroll JavaScript library for creating custom element animations when scrolling a web page, is built in pure JavaScript and Sass.
Freebies tagged scrolling
ScrollTrigger is a lightweight javascript library that you can use to trigger classes on HTML elements based on scroll position.
ScrollTrigger: A small library for scroll animations
Roll.js is a tiny javascript library (less than 8kb, no dependencies) to help you keep track of position, scrolling, and pagination.
Roll.js – Scroll tracking with javascript
A mini-library including 8 page scroll effects you can use for your silders. A little gem by CodyHouse.
Page scroll effects
FSVS is a simple full screen vertical slider using CSS3 transitions followed up by a jQuery fallback. Coded by lukesnowden.
Full screen vertical scroll – jQuery
fullPage.js is a jQuery plugin for creating stunning fullscreen scrolling websites as if they were slides.
fullPage.js – Fullscreen scrolling pages
Here is an awesome jQuery plugin for creating an Apple-like one page scroller website (iPhone 5S website) with One Page Scroll plugin.
One page scroll – jQuery plugin
Here is a wonderful “jelly” scroll effect for websites and apps made with javascript. Created by Lego Mushroom.