Write a flowchart, sequence diagram, or ER model as text, render it locally, and export a clean SVG for documentation or a pull request.
Use Mermaid syntax only. Strict rendering is enabled, so arbitrary HTML is not accepted.
Keep a Mermaid definition beside your code, render it here for review, and download the output when you need a portable image. The tool deliberately avoids remote themes, cloud storage, and generated tracking links.