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Rulerito icon

Rulerito

Stop guessing your window size. Rulerito sits quietly in the corner, tells you the exact pixels, and lets you resize it.

Users1Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth--Net users gained this week
7-day growth rate--Relative weekly velocity
Preview

Rulerito Media preview

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Trend

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User Growth Over Time

111112026年7月2日2026年7月6日2026年7月8日Latest: 1
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Growth overview

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Technical snapshot

Version, languages, and crawl freshness

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Version1.2
ManifestV3
Size103KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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Rulerito: Rule your viewport.

Testing responsiveness shouldn't be a hassle. Rulerito is a lightweight, developer-friendly tool that lives quietly in the bottom-right corner of your browser.

Why use Rulerito? Instead of constantly opening DevTools or guessing dimensions, Rulerito gives you instant visual feedback and precise control right where you need it.

Key Features: Live Dimensions: See your current viewport width and height in real-time. Pixel-Perfect Resizing: Manually input dimensions to resize your window instantly. Custom Presets: Save your most-used resolutions (Mobile, Tablet, Desktop) and switch between them with one click. Non-intrusive UI: Designed to look like a precise tool—dark mode, clean typography, and "always in your corner" without blocking your view.

Perfect for:

Frontend Developers

Reviews

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Store average score--Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average--Average computed only from synced review bodies below
Reviews with text0Synced review bodies
Total ratings / reviews0Chrome Web Store public rating/review count

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