Online Ruler
Measure objects with an on-screen ruler online for free. Calibrated digital ruler in inches and centimeters for accurate screen measurements.
The full version of Online Ruler is being built right now. We add new fully functional tools every week. In the meantime, you can use the basic workspace below.
About Online Ruler
Measure objects with an on-screen ruler online for free. Calibrated digital ruler in inches and centimeters for accurate screen measurements.
This tool is completely free and runs 100% in your browser. Your data is never uploaded to any server — everything is processed locally on your device for maximum privacy and speed.
About Online Ruler
Measure objects with an on-screen ruler online for free. Calibrated digital ruler in inches and centimeters for accurate screen measurements.
Features
- 100% free with no sign-up required
- Runs entirely in your browser for full privacy
- No data stored, no files uploaded to servers
- Works on desktop and mobile devices