Ruler — Measure Pixel Distance

Measure the pixel distance and X/Y offset between any two points on a web page. Click the toolbar icon to start.

Ruler measures the exact pixel distance — and the X and Y offset — between any two points on a web page. 📏 TWO CLICKS Click the toolbar icon, click point A, then click point B. A crosshair overlay follows your cursor and shows the live dx, dy, and straight-line distance as you move. 📋 AUTO-COPIED The moment you lock the second point, the result — start and end coordinates plus dx and dy — is copied to your clipboard, ready to paste into your code, notes, or a bug report. 🎯 BUILT FOR PRECISION WORK Perfect for front-end developers, designers, and QA: line things up, check spacing, measure offsets for absolute positioning, or grab coordinates for automation scripts. 🔒 PRIVATE & LIGHT • Only activeTab + scripting + clipboardWrite — it runs on a page only when you click to measure. • No host permissions, no "read your data on all sites". • No accounts, no tracking, no ads. Nothing is uploaded. Press ESC anytime to cancel. Free.