Privacy Policy

Last updated: March 19, 2026

Overview

FITS Viewer is a client-side web application. All FITS file processing happens locally in your browser. We do not collect, store, or transmit your files or data.

What we do not collect

• We do not collect your FITS files or image data
• We do not collect personal information (name, email, etc.)
• We do not use tracking cookies
• We do not use advertising or analytics services that track users

How FITS Viewer works

When you open a FITS file, it is read directly into your browser's memory using JavaScript. No data is sent to any server. All rendering, analysis, and export operations are performed locally on your device.

Website analytics

We use anonymous, privacy-friendly analytics to understand how the site is used. This does not include personal data, IP addresses, or any information that could identify individual users.

Third-party services

FITS Viewer runs entirely in your browser. We do not rely on third-party services for processing your data.

Contact

If you have questions about this privacy policy, please contact us through the website.