Try Online Ruler
🔒 Transparency & Data Security

Privacy Policy

At Try Online Ruler, your privacy is our foundational architectural principle. Our measuring tool runs entirely on your device with no measurement data ever sent to our servers.

Last Updated: September 2026

1. 100% Client-Side Execution Guarantee

Try Online Ruler operates strictly within your client-side browser runtime. All calculations (Pixels Per Inch conversion, caliper geometry, unit toggles, and coordinate tracking) execute exclusively via JavaScript and HTML5 Canvas inside your local browser memory.

We never transmit, store, or process any physical dimensions, calibrated values, or screenshots of items placed on your display screen.

2. Information We Do NOT Collect

Because our application requires no account registration, login credentials, or user profiles, we do NOT collect:

  • Personal Identifiable Information (PII) such as your legal name, home address, or phone number.
  • Financial or payment card details: When you utilize the credit card calibration feature, the card's dimensions are used purely as a physical reference template against your screen glass. No card numbers, chip data, or magnetic stripe information are ever accessed or read.
  • Camera or sensor feeds: Our digital ruler does not access your webcam, microphone, or biometric sensors.

3. Local Browser Storage (localStorage)

To save your preferences between visits, we store minimal non-sensitive configuration keys in your browser's local HTML5 storage (localStorage):

  • PPI: Your calibrated screen PPI (Pixels Per Inch).
  • Unit: Selected display unit (cm, mm, in, px).
  • Theme: UI color theme preference (Light / Dark mode).

This data remains strictly on your device and can be cleared at any time by clearing your browser cache and cookies.

4. Analytics & Performance Monitoring

We use privacy-compliant, anonymized web analytics (such as Google Analytics with IP anonymization enabled) to monitor overall website availability, page load speeds, and aggregated browser device types. This aggregated data contains no personally identifiable information and is used solely to maintain server performance and optimize screen resolution compatibility.

5. Third-Party Links & External Services

Our website may contain links to external third-party resources (such as standard specifications or partner sites). We are not responsible for the privacy practices or content of third-party domains. We advise you to review their respective privacy notices.

6. Contact Regarding Data Privacy

If you have any questions, concerns, or requests regarding this Privacy Policy or our client-side data architecture, please contact us via our Contact Page.

📏 Open Interactive Ruler