Privacy Policy

Last updated: August 29, 2026

1. Introduction

At Percentage Calculator, we take your privacy extremely seriously. Because our application is a 100% static client-side tool, we operate with a strict data-minimization philosophy.

2. Data Collection

We do not collect, transmit, or store any of your calculation data. All math calculations are processed entirely on your local device (in your web browser's memory) using JavaScript. When you close the tab, the numbers you entered are gone forever.

3. Cookies and Local Storage

We use standard browser localStorage purely to remember your theme preference (Light or Dark mode). We do not use tracking cookies, analytics pixels, or third-party advertising scripts.

4. Third-Party Services

Our website is hosted on modern static hosting platforms. These platforms may temporarily log standard server connection information (like IP addresses and user-agent strings) for security and anti-DDoS purposes, but this is entirely decoupled from your mathematical inputs on the site.

5. GDPR and CCPA Compliance

Because we do not collect personal data, we are inherently compliant with the GDPR, CCPA, and other global data privacy regulations.