Privacy Policy

Introduction

This Privacy Policy explains how Diagram Now collects, uses, and protects information when you use our website and diagram generation service.

Diagram Now helps users edit Mermaid diagrams online, preview diagrams live, generate Mermaid code from text descriptions, and download SVG or draw.io files.

Information We Collect

We may collect the following information:

1. Account information

   • Email address, name, avatar, login provider, authentication identifiers, and account status.

2. Payment and credit information

   • Order identifiers, product or plan name, credit grants, credit consumption records, renewal records, payment provider status, and billing history needed to provide paid features.
   • We do not store full payment card numbers. Payments are handled by third-party payment providers.

3. Diagram generation data

   • Text you submit for AI generation, generated Mermaid code, generated draw.io file data, generation status, error messages, and technical metadata needed to provide the requested generation and billing records.
   • We use this information to generate your diagram, show results, support downloads, prevent abuse, and keep usage records.

4. Technical and usage data

   • IP address, browser type, device information, pages visited, timestamps, language preference, cookies, and similar diagnostics used for security, analytics, and service reliability.

5. Support communications

   • Information you send to us when requesting support, including your email address, order details, screenshots, and messages.

How We Use Information

We use information to:

• Provide Mermaid editing, live preview, AI generation, and file downloads.
• Manage accounts, authentication, credits, subscriptions, and billing history.
• Process payments and payment status through third-party providers.
• Prevent fraud, abuse, unauthorized access, and service misuse.
• Debug errors, improve reliability, and respond to support requests.
• Comply with legal, accounting, tax, and regulatory obligations.

Cookies

We may use cookies and similar technologies for login sessions, language preference, security, analytics, and core website functionality. You can control cookies through your browser settings, but some features may not work properly without them.

Sharing Information

We do not sell your personal information.

We may share information with:

• Payment providers and merchant-of-record services for checkout, billing, tax, fraud prevention, and refunds.
• Authentication providers when you choose social login.
• AI service providers when you request AI generation.
• Hosting, database, analytics, email, and infrastructure providers needed to operate Diagram Now.
• Legal or regulatory authorities when required by law or to protect our rights and users.

Data Retention

We retain account, billing, credit, and generation records for as long as needed to provide the service, maintain billing history, resolve disputes, prevent abuse, and meet legal obligations.

You may request account or data deletion by contacting us. Some records may need to be retained for legal, payment, tax, fraud prevention, or security reasons.

Security

We use reasonable technical and organizational safeguards to protect information. However, no internet service is completely secure, and we cannot guarantee absolute security.

International Processing

Diagram Now and its service providers may process information in different countries or regions. By using the service, you understand that information may be transferred and processed outside your location.

Children's Privacy

Diagram Now is not intended for children under 13. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. The updated version will be posted on this page with a new effective date.

Contact

For privacy or support questions, contact us at 1252722045@qq.com.