Privacy Policy
Last updated: February 5, 2026
1. Introduction
ClearDiagram ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website cleardiagram.ai and use our web application at demo.cleardiagram.ai (collectively, the "Service").
2. Information We Collect
Information You Provide
- Account information (email address, name) when you create a Pro account
- Payment information processed securely through Stripe (we do not store card numbers)
- Diagram data you create and save to our cloud service
- Communications you send to us (support requests, feedback)
Automatically Collected Information
- Usage analytics (pages visited, features used, session duration)
- Device information (browser type, operating system, screen resolution)
- IP address and approximate location
- Cookies and similar tracking technologies
3. How We Use Your Information
- To provide, maintain, and improve the Service
- To process transactions and send related information
- To send you technical notices, updates, and support messages
- To monitor and analyze usage trends and preferences
- To detect, prevent, and address technical issues and fraud
4. AI and Your Data
When you use our AI diagramming features, your text prompts are sent to our AI provider to generate diagrams. We do not use your diagrams or prompts to train AI models. Your data is processed solely to provide the requested service and is not retained by our AI provider beyond the duration of the request.
5. Data Sharing
We do not sell your personal information. We may share information with:
- Service providers: Stripe (payments), Firebase (authentication), and cloud hosting providers who assist in operating our Service
- Legal requirements: When required by law, subpoena, or government request
- Business transfers: In connection with a merger, acquisition, or sale of assets
6. Data Security
We implement appropriate technical and organizational security measures to protect your data, including encryption in transit (TLS/SSL), encryption at rest, and secure authentication via Firebase Auth. However, no method of transmission over the Internet is 100% secure.
7. Data Retention
We retain your account data for as long as your account is active. Diagram data is retained for 30 days after account cancellation. You may request deletion of your data at any time by contacting us.
8. Your Rights
Depending on your location, you may have the right to:
- Access the personal information we hold about you
- Request correction of inaccurate data
- Request deletion of your data
- Object to or restrict processing of your data
- Request a portable copy of your data
9. Cookies
We use essential cookies for authentication and session management. We use analytics cookies (Google Analytics) to understand how visitors interact with our site. You can control cookie preferences through your browser settings.
10. Children's Privacy
Our Service is not directed to children under 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected such information, we will take steps to delete it.
11. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.
12. Contact Us
If you have any questions about this Privacy Policy, please contact us at: