Tag
3 catalogue entries use this topic; each Project's license policy is labeled separately.
Collaborative whiteboard with a hand-drawn look
Excalidraw's sketchy rendering is not decoration. Diagrams that look provisional invite comment, where a crisp vector diagram signals a decision already made, so it is unusually good at the early part of a design conversation.
Text-defined diagrams: flowcharts, sequences, and Gantt in Markdown
Mermaid is a JavaScript tool that renders Markdown-inspired text into flowcharts, sequence diagrams, and Gantt charts, rendered natively in Markdown hosts such as GitHub.
Security-first diagramming online, on desktop, or self-hosted
draw.io is a free diagram editor for flowcharts, network diagrams, and whiteboards that runs in the browser, on the desktop, or self-hosted.