TrackDuck - Visual feedback for web design and development.
ScrollMagic - The jQuery plugin for magical scroll interactions.
Valist - Automatically created staging environments for every update with a shareable link for testing
Lax.js - Create beautiful & smooth animations when you scroll
Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.
ScrollReveal - ScrollReveal is a tool to add scroll animations for web and mobile browsers.