Apache ECharts is a powerful, interactive charting and data visualization library for browser

Konva.js is an HTML5 Canvas JavaScript framework for interactive graphics, design editors, whiteboards, and diagrams. Scene graph with events, drag and drop, transforms, animations, and export.

Interactive, thoroughly customizable maps in the browser, powered by vector tiles and WebGL

A modular geospatial engine written in JavaScript and TypeScript

An open source visual editor for the 'MapLibre Style Specification'

Display arbitrary GeoJSON on a map with a timeline slider and play button