Introduction

Online Statistics Calculator ("we," "our," or "us") operates the website onlinestatscalculator.com (the "Service"). This Privacy Policy explains how we collect, use, and protect your information when you use our Service.

We are committed to protecting your privacy. Our statistical calculators are designed to process all data locally in your web browser, meaning your data never leaves your device.

Data We Do Not Collect

Unlike many online tools, our calculators perform all statistical computations entirely within your web browser using JavaScript. This means:

No data is sent to our servers. All calculations for descriptive statistics, hypothesis tests, confidence intervals, regression analysis, correlation analysis, probability distributions, and grade curving happen locally on your device.
No datasets are stored. When you enter data into our calculators or upload a CSV file, that data exists only in your browser's memory and is discarded when you close the page.
No user accounts or login required. We do not collect personal information such as names, email addresses, or passwords because we do not have a registration system.

Information We Collect Automatically

When you visit our website, certain information may be collected automatically through third-party services:

Google AdSense

We use Google AdSense to display advertisements on our website. Google AdSense may use cookies and similar technologies to serve ads based on your prior visits to our website or other websites on the internet. Specifically:

Google uses cookies (such as the DART cookie) to serve ads based on your visits to this site and other sites on the internet.
You may opt out of personalized advertising by visiting Google Ads Settings.
You can also opt out of third-party vendor cookies by visiting the Digital Advertising Alliance opt-out page.

Hosting Provider

Our website is hosted on Vercel. Vercel may collect standard web server log information, including IP addresses, browser type, referring pages, and timestamps. This data is used for operational purposes such as maintaining service reliability and security. For more information, see Vercel's Privacy Policy.

Cookies

We do not set any first-party cookies. However, third-party services used on our website (such as Google AdSense) may set cookies on your device. These cookies are used to:

Serve relevant advertisements
Limit the number of times you see an ad
Measure the effectiveness of advertising campaigns

You can control cookies through your browser settings. Most browsers allow you to block or delete cookies. Please note that blocking cookies may affect the functionality of some features on our website.

Your Rights Under GDPR

If you are located in the European Economic Area (EEA), you have the following rights under the General Data Protection Regulation (GDPR):

Right of access — You can request information about what data, if any, we hold about you.
Right to erasure — Since we do not store your calculation data, there is nothing to erase. For third-party cookie data, you can clear your browser cookies at any time.
Right to restrict processing — You can opt out of personalized ads through Google Ads Settings.
Right to data portability — All your data stays in your browser; you can export results directly from our calculators.
Right to object — You can object to personalized advertising by adjusting your ad settings or using an ad blocker.

Your Rights Under CCPA

If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA):

Right to know — You can request what personal information we collect. As stated above, we do not collect personal information directly.
Right to delete — You can request deletion of your personal information. Since we do not store personal data on our servers, this is automatically fulfilled.
Right to opt out of sale — We do not sell your personal information to third parties.
Right to non-discrimination — We will not discriminate against you for exercising your CCPA rights.

Children's Privacy

Our Service is an educational tool intended for use by students, researchers, and professionals of all ages. We do not knowingly collect personal information from children under the age of 13. Since all calculations are performed locally in the browser and we do not require registration, no personal data is collected from any user, including children.

If you are a parent or guardian and believe your child has provided personal information to us, please contact us and we will take appropriate action.

Third-Party Links

Our website may contain links to third-party websites, such as educational resources or external tools. We are not responsible for the privacy practices of these external sites. We encourage you to review the privacy policies of any third-party websites you visit.

Data Security

Because your data is processed entirely within your web browser, your statistical data is never transmitted over the internet. This client-side architecture provides an inherent layer of security — your data cannot be intercepted, breached, or accessed by unauthorized parties on our servers because it is never sent to our servers.

Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date. We encourage you to review this Privacy Policy periodically for any changes.

Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us:

Email: contact@onlinestatscalculator.com
Visit our Contact page