Dimensions

A tool for designers to measure screen dimensions

Users100K

Rating4.2

Reviews461

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

Dimensions Media preview

2 assets

Trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

4.15

Latest

4.15

30-day rating change

0.00

2026年5月29日2026年6月4日

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1-day growthFlat

00%

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Technical snapshot

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Version3.0.1

ManifestV3

Size19.88KiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

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This extension measures the dimensions from your mouse pointer up/down and left/right until it hits a border. So if you want to measure distances between elements on a website this is perfect. It doesn't really work with images because there the colors change a lot pixel to pixel.

# Images & HTML Elements

Measure between the following elements: images, input-fields, buttons, videos, gifs, text, icons. You can measure everything you see in the browser.

# Mockups

Your designer handed you mockups as PNGs or JPEGs? Just drop them into Chrome, activate Dimensions and start measuring.

# Keyboard Shortcut

Reviews

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The Chrome Web Store shows 461 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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AI product read

A browser-based pixel measurement tool for designers and developers that measures distances between UI elements directly on web pages

Designers and developers need to measure pixel distances between elements on websites or mockups without switching to external tools like Photoshop or Figma

User clicks extension icon or presses Alt+D to activate. The extension captures a screenshot of the visible tab, converts it to grayscale, and pauses until processing completes. As the user moves the mouse, it measures distances from the pointer to edges in all four directions using color threshold detection. Holding Alt triggers area measurement using a flood fill algorithm to detect connected regions. Results are displayed as dimension lines overlaid on the page.

Target users: Web designers / Frontend developers / UI/UX designers / Anyone needing pixel-precise measurements of on-screen elements

The extension is small (~20KB) with simple client-side functionality, making analysis straightforward with high confidence in all three decisions

Monetization

No paid features detected

The extension is explicitly described as 'Open Source' in the store listing with a public GitHub repository. All 'pro' keyword hits are false positives from code comments containing 'process' (e.g., 'process_screenshot', 'screenshot processed', 'image processing'). No payment code, subscription logic, premium feature gating, Stripe/billing integration, or upgrade prompts exist anywhere in the source.

Confidence: 100
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension operates entirely client-side with no authentication, account creation, or external service login required. The extension uses only 'activeTab' and 'scripting' permissions. No login/auth code exists anywhere in the source. The 'auth' keyword hits are false positives from the 'author' field in manifest.json and the JSON metadata structure.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：activeTab、scripting

Publisher

Felix Niklas

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access