Privacy Policy

Last updated: June 2, 2026

TL;DR: Saizly does not collect any personal data, does not set cookies, and uses no analytics or advertising trackers. Your conversion history lives entirely on your own device and is never sent anywhere.

1. Overview

Saizly ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy explains how Saizly handles information when you use our website at saizly.com. Because Saizly is a purely client-side, statically generated application — we operate no servers that process your requests or store your data — data handling is minimal and fully transparent.

2. Information We Do Not Collect

Saizly does not collect, store, or transmit any of the following:

  • Your name, email address, or any personal identifiers
  • IP address or geographic location data
  • Conversion values or inputs you enter
  • Browser fingerprint or device identifiers
  • Usage analytics or behavioural tracking data
  • Payment or financial information of any kind

3. Browser Local Storage

Saizly uses your browser's localStorage to save preferences locally on your device. This data never leaves your browser and is never transmitted to any server.

Key Purpose Sent to server?
saizly_theme Remembers your light or dark mode preference Never
saizly_lang Remembers your selected display language Never
saizly_history Stores your last 10 conversion inputs locally Never

You can clear this data at any time via your browser's site data settings for saizly.com.

4. Cookies

Saizly does not set any cookies. All user preferences are stored in localStorage, which is separate from cookies and is never sent with HTTP requests to any server.

5. Third-Party Services

Saizly loads web fonts from Google Fonts (fonts.googleapis.com and fonts.gstatic.com). When your browser fetches these font files, Google may log the request according to Google's Privacy Policy.

We do not use Google Analytics, Meta Pixel, or any other analytics, advertising, or behavioural tracking technology.

6. Children's Privacy

Saizly does not knowingly collect any information from children under the age of 13. The service is a general-purpose reference tool suitable for all ages.

7. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date at the top of this page. We encourage you to review this page periodically. Your continued use of Saizly after any changes constitutes acceptance of the updated policy.

8. Contact

If you have any questions or concerns about this Privacy Policy, please get in touch:

Contact Us