Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!
Glimmer - Fast and light-weight UI components for the web
RealEye - Online Research Platform with Webcam Eye-Tracking.
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
Usabilla - Collect user feedback and improve your websites, apps and emails with Usabilla's Voice of Customer Solutions.
Svelte - Cybernetically enhanced web apps