Is Mermaid Diagram safe?

Clean risk

Mermaid Diagram sends selected page text to mermaiddiagram.app to generate diagrams.

When you use the context-menu AI diagram action, Mermaid Diagram reads the text selected on the current page, including textarea contents, and sends it to mermaiddiagram.app for diagram generation. The same context-menu flow also sends the active page URL with a persistent client identifier to the extension's analytics endpoint.

mermaiddiagramv1.4.0Chrome Web Store
0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

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Where it sends data

Destinations our analysis observed Mermaid Diagram contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • mermaiddiagram.app/api/amplitude

    Mermaid Diagram sends data to mermaiddiagram.app/api/amplitude. No other extension we have analysed sends data here.

  • mermaiddiagram.app/api/generate

    Mermaid Diagram sends data to mermaiddiagram.app/api/generate. No other extension we have analysed sends data here.

Updated 30 September 2026dkigedglmomkbkaemcgjhpfnblofdfjb