TensorFlow.js : A WebGL accelerated, browser based JavaScript library for training and deploying ML models. Use flexible and intuitive APIs to build and train models ...
InstantClick : InstantClick is a JavaScript library that dramatically speeds up your website, making navigation effectively instant in most cases.
React : A JavaScript library for building user interfaces
Autotrack : Automatic and enhanced Google Analytics tracking for common user interactions on the web.
Add Clippy or his friends to any website for instant nostalgia.