Which diagram types are supported?

Everything Mermaid renders: flowcharts, sequence diagrams, class and state diagrams, entity relationship diagrams, Gantt charts, pie charts, mindmaps, and git graphs.

Can I share a diagram by link?

Yes. The source is compressed into the page URL, so the link reproduces your diagram exactly. A very large diagram can outgrow the URL; export the SVG to share those.

How do I export the diagram?

Download SVG for crisp vector output that scales to any size, or PNG for pasting into docs and slides. Both render locally.

Is my diagram sent to a server?

No. Mermaid runs in your browser, so the source and the rendered diagram never leave your device.

Mermaid Editor

Write Mermaid, preview live, and export SVG or PNG.

Code

Diagram error

Preview

Drag to pan, scroll to zoom.

The URL below carries your diagram source. Anyone who opens it sees the same diagram.

This diagram is too large to fit in the URL. Export the SVG to share it instead.

Share URL

How to use the Mermaid Editor

Type or paste Mermaid syntax into the editor, or pick a starter template.
The diagram renders live beside the code. Parse errors point at what went wrong.
Drag to pan and scroll to zoom the preview.
Switch the theme, then export the result as SVG or PNG.
Copy the share URL. Opening it later restores the same diagram.

Frequently asked questions

Which diagram types are supported?: Everything Mermaid renders: flowcharts, sequence diagrams, class and state diagrams, entity relationship diagrams, Gantt charts, pie charts, mindmaps, and git graphs.
Can I share a diagram by link?: Yes. The source is compressed into the page URL, so the link reproduces your diagram exactly. A very large diagram can outgrow the URL; export the SVG to share those.
How do I export the diagram?: Download SVG for crisp vector output that scales to any size, or PNG for pasting into docs and slides. Both render locally.
Is my diagram sent to a server?: No. Mermaid runs in your browser, so the source and the rendered diagram never leave your device.