Contact
Found a bug, or a diagram that will not render? Tell us — rendering bugs are the highest priority. Include the Mermaid code that failed (it never leaves your browser, so we cannot see it ourselves).
What to include
- Your browser and device (e.g. Safari on iPhone 13)
- The diagram type you were editing
- The code snippet that failed, if reporting a rendering bug
Response time
We read everything and usually reply within a few business days. Feature requests that help people edit diagrams on mobile get priority.