Effective Date: August 19, 2026
OnlineScreenRuler operates entirely within your web browser. All measurement data, calibration settings, and theme preferences are stored in your device's Local Storage (HTML5 LocalStorage). We do not transmit, upload, or store your measurements on any external servers.
We use essential cookies/local storage solely for remembering your consent preferences and calibration settings to ensure the application functions correctly.
We do not sell, trade, or transfer your locally-stored data to outside parties. Because the data never leaves your browser, we have zero access to it.
Because your data is strictly localized, you maintain absolute control. To delete all your data, simply clear your browser's cookies and site data for this URL.
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