It is a JavaScript-based diagramming and charting ... Draw.io, often known as diagrams.net, is one of the best open-source diagramming tools that rivals and often surpasses commercial offerings ...

QElectroTech is an open source tool for drawing these types of diagrams. It consists of two tools: an element editor for creating schematic symbols and a diagram editor for creating your drawings.

Mermaid, the open source diagramming and charting tool, has long been popular with developers for its ability to create diagrams using a Markdown-like language. As is often the case, Mermaid ...

Continuing its overtures toward open source ... tool kits. Also introduced at the Build conference was Vorlon.JS, a browser-agnostic tool powered by Node.js and socket.io for remote JavaScript ...