Online Ruler saves your calibration setting (screen PPI) and your light/dark theme preference in your browser's local storage. This data stays on your device — it is not sent to our servers, and we don't have access to it.
We don't require an account, don't collect personal information, and don't sell or share data with third parties.
Like most websites, our hosting provider may keep basic technical logs (such as IP address and browser type) for security and performance purposes. These are not used to identify individual visitors for marketing purposes.
This policy may be updated from time to time. Continued use of the tool after changes constitutes acceptance of the updated policy.