WOW.js - Animate elements on-scroll to catch attention. Such Magic.
CALCONIC_ - Build & add interactive calculators to your website! Choose from more than 50 premade calculators or build your own from scratch. No coding required. Free plan available. Zapier Integration. Publish Anywhere.
Lax.js - Create beautiful & smooth animations when you scroll
iWinSoft Image Converter - iWinSoft Image Converter is a batch image processor that allows the user to convert multiple images to most popular vector and raster image formats including EPS, PSD, PDF, TPIC, PNG, JPG and all types of RAW formats.
ScrollMagic - The jQuery plugin for magical scroll interactions.
Chemical WorkBench - Chemical WorkBench is a software for kinetic mechanism analysis and device/reactor scale kinetic modeling of processes in gases, plasma and at the gas-solid interfaces.