This Cookie Policy explains how Mermaid Kit uses cookies and similar technologies across our website and app. By using Mermaid Kit, you consent to the use of cookies described below.
Cookies are small text files stored on your device when you visit a website. They help websites work more efficiently and provide information to website owners.
We use cookies to support Mermaid Kit’s core diagram and AI features and to keep the product reliable:
- Essential Cookies: keep you signed in, protect sessions, and help rate-limit AI usage and uploads.
- Preference Cookies: remember language, theme, and editor layout choices.
- Performance & Analytics Cookies: measure feature usage (e.g., text-to-diagram, whiteboard uploads), page performance, and reliability.
- Functional Cookies: preserve draft states such as recent diagrams, editor preferences, and upload progress.
- No Advertising Cookies: we do not run ads today. If that changes, we will update this policy and request consent where required.
- Session cookies for authentication and CSRF protection
- Security cookies to help prevent fraud/abuse and rate-limit AI calls
- Language and theme preferences for the Mermaid editor
- Diagram/editor layout choices and recently used tools
- Analytics to understand which AI flows are used (text-to-diagram, whiteboard import, architecture check)
- Load-balancing and performance cookies to keep pages responsive
- Draft and state cookies to retain recent diagrams or upload context between refreshes
- Feature flags to enable or disable beta functionality
- We do not set advertising cookies. Social sharing services may set their own cookies if you click share buttons.
Most web browsers let you control cookies. You can delete cookies, block some or all cookies, or set alerts before storing cookies. Blocking cookies may affect sign-in, AI exports, whiteboard uploads, and saved drafts.
We may update this Cookie Policy from time to time. We will post any updates on this page and adjust the “date” above.
If you have any questions about this Cookie Policy, please contact us.