Mithril.js is a modern, small, fast client-side Javascript framework for building Single Page Applications.

Best JS Framework for cross-platform web Apps development. ✅HTML5 JavaScript UI library with responsive web widgets. High performance, lightweight code and cross platform compatibility

GoJS is a JavaScript library for building interactive diagrams and graphs on the web. Build apps with flowcharts, org charts, BPMN, UML, modeling, and other visual graph types. Interactivity, data-binding, layouts and many node and link concepts are built-in to GoJS.