Privacy Policy

Last updated: August 21, 2026

Key Highlights

  • Client-side data processing: All research and statistical datasets entered or uploaded into our calculators are processed locally in your browser. We never upload, transmit, or store your raw dataset on any server.
  • No user accounts: You can use all calculators freely without registering, providing an email, or creating an account.
  • Third-party advertising & analytics: We display advertisements (e.g., via Google AdSense) and use privacy-friendly analytics to keep this site free.

1. Introduction

Welcome to Research Tools (“we,” “our,” or “us”). We provide free online statistical calculators designed for researchers, psychologists, students, and educators. This Privacy Policy explains how information is collected, used, and protected when you visit our website (the “Service”).

By using Research Tools, you agree to the collection and use of information in accordance with this policy.

2. Calculator Data & Local Processing Guarantee

When you use our statistical tools (such as Cronbach's Alpha Calculator, Cohen's d Calculator, or Sample Size Calculator), all computations are performed entirely on your local device (in your web browser) using client-side JavaScript.

  • Any numbers, CSV files, or questionnaire responses you paste or upload remain in your browser memory.
  • Your research participant data is never sent across the internet to our backend servers.
  • Once you close or refresh your browser tab, the entered dataset is cleared from memory.

3. Third-Party Advertising & Cookies

We may use third-party advertising partners, including Google AdSense, to serve advertisements when you visit our website. These partners may use cookies, web beacons, and similar tracking technologies to serve ads based on your prior visits to this website or other websites on the internet.

Google's use of advertising cookies: Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our sites and/or other sites on the Internet.

Opting out of personalized advertising:

4. Analytics & Web Hosting Logs

Like most websites, our hosting platform and analytics services automatically collect standard internet log information and technical data, including:

  • Browser type and operating system
  • Referring/exit pages and timestamps
  • Approximate geographic region (country or city level)
  • General performance metrics and aggregate page views

This information is used strictly to analyze website performance, ensure security, and improve tool usability. It is not combined with personally identifiable information.

5. User Rights (GDPR, CCPA/CPRA)

Depending on your location, you may have rights under data protection laws (such as the General Data Protection Regulation in the EU or the California Consumer Privacy Act in the US):

  • The right to know what personal information is collected and processed.
  • The right to request deletion of personal information held by third-party analytics/ad networks.
  • The right to opt-out of the sale or sharing of personal data for targeted advertising.

Because we do not store accounts or collect personal identities directly on our servers, requests regarding advertising cookies should be managed via your browser settings or ad network opt-out portals.

6. Links to Other Websites

Our Service may contain links to academic references, scientific papers, or external websites. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

7. Children's Privacy

Our Service is intended for general audiences, researchers, and students. We do not knowingly collect personally identifiable information from children under the age of 13.

8. Changes to This Privacy Policy

We may update our Privacy Policy periodically. We will notify you of any changes by posting the new Privacy Policy on this page and updating the “Last updated” date at the top.

9. Contact Us

If you have any questions or suggestions regarding this Privacy Policy, please reach out to us at privacy@researchtools.io.