Privacy policy
Last updated: 12 November 2026
Ruler Now is a measuring tool that runs entirely in your browser. This page explains, in plain terms, what the site does and does not do with information.
What we collect
Nothing that identifies you. There are no accounts, no sign-up forms, no advertising and no analytics or tracking scripts on this site, and the site sets no cookies.
What is stored on your device
To remember your settings between visits, the site saves a few values in your browser’s local storage:
- your screen calibration, if you calibrate with a card;
- the measurement unit you last chose;
- your light or dark theme preference;
- whether the tool dock is pinned open.
These values never leave your device and are not sent to us. You can remove them at any time by clearing this site’s data in your browser settings.
Photos you measure against
If you use “Measure a photo” or “Take a photo”, the image is opened by your own browser and shown on your screen only. It is not uploaded anywhere.
Third parties
The site is hosted on GitHub Pages, and its typeface (Inter) is loaded from Google Fonts. As with any website, these providers receive the technical information your browser sends when it requests a file, such as your IP address. Their own privacy policies describe how they handle it.
Changes
If the site ever adds analytics, advertising or anything else that changes what is described here, this page will be updated first.
Contact
Questions about this policy can be raised on the project’s issue tracker.