Categories

Screen Ruler

Files stay on your device · 100% private Runs in your browser

Measure pixels, inches, and centimeters on screen.

Cursor X0 px
Cursor Y0 px
Selection0 × 0
Diagonal Length0 px
Calibrated DPI96 DPI
💡 Click & drag on canvas to measure box area. Double-click to drop a permanent guide marker. Drag the green ruler anywhere. 0 markers

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How to Use Screen Ruler

1

Select or Upload

Choose your file or paste your input into the workspace above. Drag and drop is supported.

2

Configure & Process

Adjust options to fit your task. Processing runs immediately with no waiting queue.

3

Download Result

Preview and save your output in one click with no watermarks or sign-up prompts.

Private & Confidential

Browser tools process files locally on your device, and server temporary files are deleted automatically within 15 minutes.

Free & No Registration

Full access to every utility without creating an account, signing in, or hitting paywalls.

Works on Any Device

Responsive layout that runs smoothly on desktop, tablet, and mobile browsers across all operating systems.

Frequently Asked Questions

Is Screen Ruler completely free to use?

Yes, Screen Ruler on KiloToolbox is 100% free with no limits, hidden fees, or account sign-up required.

Are my files safe and private?

Yes. Screen Ruler processes all files directly inside your web browser using client-side JavaScript and WebAssembly. Your files never leave your computer or mobile device and are never uploaded to any remote server.

Can I use Screen Ruler on mobile phones and tablets?

Yes, KiloToolbox is fully responsive and runs smoothly on iPhone, Android, iPad, Mac, Windows, and Linux.