Privacy Policy
Last Updated: October 2026 · RealLineal.com
At RealLineal, our tools are built to respect your privacy. RealLineal runs directly in your browser, requires no account, and never collects or tracks what you measure.
100% On-Device
Everything happens inside your browser. No photos, camera access, or dimensions ever leave your screen.
No Sign-Up
You don't need an account, email address, password, or subscription to use the ruler.
Zero Ad Trackers
We do not use invasive third-party ad networks, tracking pixels, or cross-site cookies.
1. Everything Runs in Your Browser
Every measurement tick, card calibration slider movement, guide line adjustment, and unit calculation is processed locally on your computer, tablet, or phone. We do not transmit what you are measuring, your screen snapshots, or your object dimensions to any external server.
2. Settings Stored on Your Device
To make sure you do not have to recalibrate your screen every time you open RealLineal, we use your browser's private storage (localStorage) to remember:
- Your screen calibration: Your calibrated pixel scale so the ruler stays accurate.
- Your preferred unit: Whether you prefer measuring in centimeters (cm/mm) or inches.
- Theme: Dark mode or light mode preference.
- Ruler edges: Which screen rulers (top, bottom, left, right) you have turned on.
These settings live solely on your own device. They are never sent to our servers, and you can clear them anytime by clearing your browser cache.
3. Analytics (No Tracking Cookies)
RealLineal stores zero tracking cookies on your device. To measure overall traffic trends and improve tool performance, we run Google Analytics in a cookieless mode with IP anonymization enabled.
No persistent tracking cookies, advertising identifiers, or device fingerprints are saved to or read from your device. This configuration complies with § 25 TDDDG and GDPR standards without intrusive cookie consent banners.
Standard technical connection logs are also maintained by our content delivery network (e.g. Cloudflare) strictly for security, DDoS mitigation, and fast global page delivery.
4. Your Rights (GDPR & CCPA)
Because RealLineal collects no personal accounts, user profiles, or measurement histories, we do not store, sell, or share any personal data. Any saved calibration preferences live exclusively on your device and can be cleared at any time through your browser settings.
5. Questions About Privacy?
If you have any questions about how RealLineal protects your privacy, feel free to reach out directly at hello@reallineal.com or via our Contact page.