Privacy Policy

Last updated: 28 May 2026

MermaidRender.com is a browser-based Mermaid diagram editor and exporter. This Privacy Policy explains, in general terms, how information may be processed when you visit and use the site.

How the service works

The editor runs primarily in your browser. Mermaid code entered into the editor is used locally on your device to render previews and support export features.

Information collected automatically

Like most websites, MermaidRender.com and the services used to operate it may automatically process technical and usage information such as IP address, browser type, device information, pages visited, referral information, approximate location derived from IP, and general interaction data needed to operate, secure, analyze, and improve the site.

Analytics

We use Google Analytics 4 to understand how visitors use the site. Depending on configuration, Google Analytics may collect information such as page views, scrolls, outbound clicks, site search activity, file downloads, form interactions, and similar engagement events. This information is generally used in aggregate to understand site performance and improve the service.

We do not use the editor to intentionally request account registration details or personal profile information from users. We also do not intentionally send Mermaid diagram text to analytics systems as part of normal site usage.

Advertising

We use Google AdSense to display advertising. Google and its partners may use cookies, local storage, device identifiers, and similar technologies to serve, measure, and personalize ads where permitted by law and user consent settings.

If you are in the EEA, the UK, or Switzerland, a consent message may be shown so you can make choices about advertising and related technologies.

Cookies and similar technologies

The site may use cookies, local storage, and similar technologies for essential site functions, analytics, consent preferences, interface preferences such as theme selection, and advertising-related purposes.

Third-party services

We may rely on third-party providers such as hosting services, content delivery services, analytics providers, and advertising partners to operate the site. Those providers may process information in accordance with their own privacy terms and applicable law.

Your choices

You can control cookies and similar technologies through your browser settings and, where available, through the consent tools presented on the site. You can also review Google's own policies and controls for Google services.

Data retention and protection

Retention periods may vary depending on the service involved, operational needs, and legal requirements. Reasonable technical and organizational measures may be used to help protect the site and related systems, but no internet-based service can guarantee absolute security.

Children

This site is not directed to children under 13, and we do not knowingly collect personal information from children through the editor.

Contact

If you would like to provide a contact address or business contact information for privacy requests, you can update this page with those details at any time.

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