Page Ruler for Chrome
Draw interactive pixel guidelines to measure element dimensions, distances, alignment, padding, and margins.
Replaces:
Page Ruler ReduxDimensionsMeasureIt
Why Developers Switch to OmniDev
Installing a separate browser extension just for page ruler bloats Chrome memory, adds permission risk, and clutters your toolbar. OmniDev integrates Page Ruler natively alongside 53 other frontend and QA tools.
Draw interactive pixel guidelines to measure element dimensions, distances, alignment, padding, and margins.
Runs inside an isolated Shadow DOM panel so host page styles never break or leak
Zero background RAM overhead when idle — lazy-loaded on demand in milliseconds
Replaces standalone Page Ruler Redux, Dimensions, MeasureIt extensions inside a single 54-in-1 toolkit
Shadow-DOM isolated • Zero host-page CSS leakage
STEP 01
Install OmniDev from the Chrome Web Store and open the popup or press your custom shortcut.
STEP 02
Select "Page Ruler" under the Inspect & Debug category (or search "Page Ruler" in the launcher).
STEP 03
Inspect, capture, or export results directly on the live page — 100% locally in your browser.
Frequently Asked Questions — Page Ruler
Is the Page Ruler tool in OmniDev completely free?
Yes. Page Ruler and all 54 tools in OmniDev are 100% free to use with no account signup or paywall.
Does Page Ruler send my webpage data to an external server?
No. Page Ruler runs locally inside your browser tab. OmniDev is architected local-first and never uploads your DOM, storage, or network payloads to a Jambo backend.
Which standalone Chrome extensions does Page Ruler replace?
Page Ruler replaces single-purpose extensions such as Page Ruler Redux, Dimensions, MeasureIt, saving browser RAM and reducing extension permission sprawl.
More Inspect & Debug Tools in OmniDev
Every tool below is included in the same single Chrome extension install.
Explore All 54 Tools
CSS Scanner
Inspect CSS properties, computed styles, box model dimensions, and typography natively on hover over any element.
Tailwind Scanner
Instantly view and copy Tailwind CSS utility classes applied to any DOM element on hover.
Font Explorer (Font Spy)
Scans and lists all font families, weights, line heights, letter spacing, and live typography usage on the webpage.
Color Picker
Precision pixel-level magnifying eyedropper to sample any color on screen in HEX, RGB, or HSL.
Color Palette (Color Spy)
Scans the entire webpage to extract a deduplicated visual color palette of text, background, and border colors.
Console Spy
Stream console.log, warnings, uncaught exceptions, and runtime errors directly in an on-page overlay without opening DevTools.
Get Page Ruler + 53 More Tools in 1 Click
Stop cluttering Chrome with dozens of single-purpose extensions. Install OmniDev free and run everything locally.
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