Lozad.js - Highly performant lazy loader in pure JS
Statsbot - Connect your database, let Statsbot generate data relationships from your database automatically, and get your first insights in a matter of minutes.
particles.js - A lightweight JavaScript library for creating particles.
Google Analytics by SumoMe - The easiest way to see your Google Analytics
Dragula - A drag and drop library for developers
Datadeck - Spreadsheets visualized In two clicks