Privacy Policy

Your diagram data

Diagrams you create here are kept in your own browser storage and exist only on your device. We do not read, upload, back up, or analyse your diagram content, and we do not restrict your use based on what a diagram contains.

• Diagram content is never uploaded to our servers, so we cannot see it
• Clearing browser data deletes local diagrams — export anything you need to keep
• No account is required, so we do not collect names, phone numbers, or identity information

Analytics

We use Baidu Analytics to understand traffic: page views, referral sources, and device types. This tells us which content is useful and informs what we write or revise next.

• The analytics tool may set cookies or similar local identifiers
• It measures visits, not your diagram content
• The analytics script loads asynchronously after the page is usable, so it never blocks the tool

Third-party advertising

This site may carry third-party advertising (for example Baidu Union or Google AdSense). Those services may use cookies or device identifiers to display ads based on sites you have previously visited, and to measure ad performance.

• Ads are served by third parties and their data handling follows their own privacy policies
• You can manage or refuse cookies in your browser settings, and adjust personalised advertising through the provider’s ad settings
• Ads never appear inside the editor or in exported files, and do not affect how you use the tool
• If no ad units are enabled, the page makes no third-party advertising requests at all

How cookies and local storage are used

Browser local storage holds the diagrams you create. Cookies support analytics and advertising. The first is required for the tool to function; the second helps improve content and keep the site running. You can clear either at any time in your browser.

External links

Guides and pages may link to other websites. Their privacy practices are their own responsibility and fall outside this policy, so check their individual notices before use.

Changes and contact

If site features or the services used change, this policy will be updated and the revised version published on this page. For privacy questions, or to ask what processing relates to you, contact us at the address below.