Privacy Policy
Last updated: September 11, 2025
Overview
This Privacy Policy describes how the Flow2Chat Mermaid Diagram Renderer Chrome extension (referred to as "we", "us", or "our") handles data.
Data Collection
The Flow2Chat Mermaid Diagram Renderer extension does not collect, store, or transmit any user data. All diagram rendering happens locally in your browser and no information is sent to external servers.
The extension only processes Mermaid code found in ChatGPT conversations to render diagrams. This processing is done entirely client-side (in your browser) without sending any data to our servers or third parties.
Use of Permissions
Our extension requires the following permissions:
- ✓activeTab: Used solely to detect and render Mermaid diagrams on ChatGPT pages.
- ✓tabs: Used to determine if you are currently on ChatGPT and enable/disable the extension popup buttons accordingly.
- ✓Host permissions: Limited to specific domains (chat.openai.com and chatgpt.com) to ensure the extension only runs where needed.
These permissions are the minimum required for the extension to function and are not used for any data collection purposes.
Third-Party Services
Our extension does not integrate with any third-party services for data collection, analytics, or tracking. The only external dependency is the Mermaid.js library, which is bundled with the extension and runs entirely in your browser.
Data Storage
The extension does not store any user data persistently, neither on your device nor on remote servers. Any rendering state is temporary and exists only during the browser session.
Children's Privacy
Our extension is not directed at children under the age of 13, and we do not knowingly collect any personal information from children.
Changes to This Privacy Policy
We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.
You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.
Contact Us
If you have any questions about this Privacy Policy, please contact us at: