Check and Change Screen Size

Name: Check and Change Screen Size
Author: app-comcent-develop

With this extension, you can easily check and change your screen and window sizes. You can save your settings as presets.

As of June 2026, Check and Change Screen Size has — users in the Productivity category.

app-comcent-develop Productivity

Chrome Web Store ↗.crx

Users0%

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Rating0%

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— reviews

Reviews0%

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Version

0.1.0

Manifest V3

History

1 snapshots

Tracking since Jun 22, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.

View as table

Date	Users	Rating	Reviews	Version
Jun 22, 2026	—	—	—	0.1.0
Now	—	—	—	0.1.0

Permissions & access

Permissions: storagescripting
Host access: <all_urls>

Screenshots

Check and Change Screen Size screenshot 1

Check and Change Screen Size screenshot 2

About

It helps you quickly adjust and verify viewport sizes for responsive checks, QA workflows, and screenshot preparation.
Key features:
Always-on window size display on all websites
One-click copy of width x height to clipboard
Preset list with width, height, X, and Y position
Edit mode to add, update, and delete presets
Quick apply row for temporary size/position changes (without saving)
Toggle visibility from the extension icon (with badge indicator when hidden)
Supports both Japanese and English UI
Great for:
Front-end developers testing breakpoints
QA teams validating fixed viewport scenarios
Anyone needing fast, repeatable window size control

Technical

Version: 0.1.0
Manifest: V3
Size: 43.95KiB
Min Chrome: 88
Languages: 2
Featured: No

Metadata

ID: bekmckjmnebamobklipefdccacifejal
Developer ID: ua2d280c9a15f4355a57122926e565d2f
Developer Email: [email protected]
Created: Jun 21, 2026
Last Updated (Store): Jun 21, 2026
Last Scraped: Jun 22, 2026
Website: comcent.co.jp
Support URL: —
Privacy Policy: https://comcent.co.jp/privacy.html

Data sourced from the Chrome Web Store · last verified Jun 22, 2026.