Privacy Policy

1. Data Processing Principles

🔒 Browser-Based Computing

PlotNerd calculations run in your browser. Input data is processed locally and does not need to be uploaded to our servers or third parties.

Our core commitment is protecting your data privacy. Whatever statistical data you input is only calculated and processed on your device, and our tools work even when offline.

2. Information We Do Not Collect

Any numerical data you input
Calculation results and statistical analysis content
Generated charts and visualization content
Personal identification information (name, email, phone, etc.)
Specific content of file uploads or downloads

3. Pseudonymous Usage Information We Collect

To improve our services, we may collect the following pseudonymous and aggregated usage information:

Page visit counts and user session duration
Features and algorithm types used (without specific data)
Device type and browser information
Geographic location (country/region level only)

Google Analytics uses a first-party client identifier to distinguish browsers and sessions. We do not send names, email addresses, raw input data, calculation results, or report content to Analytics.

4. Cookie Usage

We use a small number of necessary cookies to:

Remember your algorithm preference settings
Provide better user experience
Collect anonymous usage statistics

🍪 Google Advertising Cookies

On eligible long-form content pages, Google and its partners may use cookies or similar technologies to serve, limit, personalize, and measure ads based on visits to PlotNerd or other sites.

Users may manage personalized advertising by visiting Google ad and content network privacy policy.

You can disable cookies in your browser settings, but this may affect the user experience of certain features.

4A. Product Validation Events

During commercial validation, we measure whether a report offer was viewed, previewed, or selected, and may record one optional task category such as assignment, teaching, research, or business use. These events do not contain your numerical input, chart, report content, name, or email address.

The report preview runs locally in your browser. The validation stage does not accept payment and has no payment provider enabled.

5. Third-Party Services

Google Analytics

Used to collect pseudonymous and aggregated visit statistics, helping us understand website usage.

CDN Services

Used to accelerate website loading, does not involve user data transmission.

6. Data Security

We adopt the following measures to protect your privacy:

Site-wide HTTPS encrypted transmission
Client-side computing, no server data storage
Regular security audits and updates
Minimal data collection principle

7. Your Rights

You have the following rights:

Stop using our services at any time
Clear local storage data in your browser
Disable cookies and statistical tracking
Request deletion of any anonymous data we may have collected

8. Policy Updates

We may update this privacy policy from time to time. Major changes will be announced prominently on the website homepage. Continued use of our services indicates your agreement to the updated policy.

9. Contact Us

If you have any questions or suggestions about this privacy policy, please contact us through:

Email: privacy@plotnerd.com
Feedback: Contact Us Page

Privacy-First Computing