Privacy Policy

Last updated: May 27, 2026

This Privacy Policy describes how BoringStack ("we", "us", "our") collects, uses, and shares information when you visit our websites and use our free utility tools (the "Services"). By using our Services, you agree to the practices described in this policy.

1. Information We Collect

Information You Provide

Our calculators and utility tools process input data (such as numbers you enter into a calculator) entirely in your browser. We do not store this information on our servers.

Automatically Collected Information

When you visit our Services, we automatically collect certain information, including:

• IP address and approximate location
• Browser type and version
• Device type and operating system
• Pages visited and time spent on each page
• Referring website

2. Cookies and Similar Technologies

We use cookies and similar tracking technologies to operate our Services and improve user experience. The cookies we use fall into the following categories:

• Essential cookies — required for the site to function
• Analytics cookies — help us understand how visitors use the site (e.g., Google Analytics)
• Advertising cookies — used by third-party ad networks (e.g., Google AdSense) to show relevant ads

You can control cookies through your browser settings. Disabling cookies may affect site functionality.

3. Advertising — Google AdSense

We use Google AdSense to display advertisements on our Services. Google AdSense uses cookies to serve ads based on your prior visits to our website or other websites.

Google's use of advertising cookies enables it and its partners to serve ads to users based on their visits to our sites and other sites on the internet. You may opt out of personalized advertising by visiting Google Ads Settings or aboutads.info.

For more information about how Google uses data when you use our Services, please review Google's Privacy & Terms.

4. Analytics

We may use Google Analytics to analyze how visitors use our Services. Google Analytics uses cookies to collect information such as how often users visit our site, what pages they visit, and what other sites they used prior to coming to our site. We use the information we get from Google Analytics only to improve our Services.

5. Legal Basis for Processing (GDPR)

If you are located in the European Economic Area (EEA), we process your personal data on the following legal bases:

• Consent — for advertising and non-essential cookies
• Legitimate interest — for analytics and site operation
• Contractual necessity — to provide the Services you request

6. Your Rights

Depending on your jurisdiction, you may have the following rights regarding your personal data:

• Access to the personal data we hold about you
• Correction of inaccurate or incomplete data
• Deletion of your personal data ("right to be forgotten")
• Restriction or objection to certain processing
• Data portability
• Withdrawal of consent at any time

To exercise any of these rights, contact us at the email address provided at the end of this policy.

7. Data Retention

We retain automatically collected information (such as analytics data) for as long as needed to provide and improve our Services. Calculator inputs are never stored on our servers and exist only in your browser session.

8. Children's Privacy

Our Services are not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent and become aware that your child has provided us with personal information, please contact us.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Material changes will be communicated by updating the "Last updated" date at the top of this policy.

10. Contact

For questions or concerns regarding this Privacy Policy, contact us at:

Email: privacy@boringstack.io (replace with your real address)