Mapus is an open source tool to explore and annotate collaboratively on a map. You can draw, add markers, lines, areas, find places to go, observe other users, and much more.
Ola is a smooth animation library for inbetweening / interpolating numbers in realtime.
Zeu.js is JavaScript library featuring a collection of prebuilt visualization components for building real-time TV dashboard, monitoring UI and IoT web interface.
pico.js is lightweight face detection library in 200 lines of JavaScript. pico.js has real-time detection capabilities (200+ FPS in a practical setting)
WebGazer.js is an eye tracking library that uses common webcams to infer the eye-gaze locations of web visitors on a page in real time.
Javascript technique that is scanning the DOM of a page for text equivalents and showing the actual parts of the page, as well as hiding the irrelevant ones.