AccuRuler

by Michele Milidoni · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Measure any element, on any background. Click-drag a ruler with live width, height and coordinates, always visible on dark pages.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#318K

#252K among extensions

Version

1.0.0

updated 11 Sep 2026

Users

monthly, 1 months

Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About AccuRuler

AccuRuler recreates and improves on the classic page ruler. Click the toolbar button, then click-drag anywhere to draw a measuring box with live width, height, start and end labels. What makes it different: - Auto-contrast chrome — the border, crosshair and labels flip black or white to match the background under your pointer, so the ruler never disappears on a dark site. - Smart label placement — labels sit outside the box you're measuring and flip sides when there's no room, so they never cover the element you care about. - No popups, no ads — a single-purpose tool that gets out of your way. Tune it to your workflow: - Colors: line/crosshair color, fill color and opacity, label background. - Units: CSS pixels, physical pixels (× devicePixelRatio), millimetres or centimetres. - Keyboard: Esc cancels or clears; arrow keys nudge 1px (Shift = 10px). Private by design: AccuRuler collects nothing and makes no network requests. Settings stay in your browser.