About Mermaid Viewer

Mermaid Viewer is an independent, browser-based tool for people who write Mermaid diagrams and need a fast way to check the rendered result.

Our goal is to make the workflow simple: paste Mermaid code, preview it with different themes and layouts, then export PNG or SVG for documentation and presentations.

Rendering happens in your browser for the editor experience. Mermaid Viewer is not affiliated with or endorsed by the Mermaid project.