Responsive Check!!

Split the page being viewed into two. In the case of a responsive site, it will become possible to check the smart phone and the PC…
What is Responsive Check!!?
"Responsive Check!!" is a Chrome extension that provides an efficient solution for testing responsive designs. With a simple click, the extension divides the screen into two, enabling you to view and compare the PC and smartphone versions of a responsive website concurrently. You can freely adjust each window's width with your mouse, providing the ultimate convenience and efficiency in design checks.

Extension stats

Users: 3,000+
Rating: 4.75 (4)
Version: 1.0.2 (Last updated: 2022-06-08)
Creation date: 2017-04-25
Risk impact: Low risk impact
Risk likelihood: Low risk likelihood
Manifest version: 3
Permissions:
  • storage
Size: 44.66K

Other platforms

Not available on Firefox
Not available on Edge
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Extension summary

Analyze keywords

ボタン1つで画面が2つに分割されます。レスポンシブサイトの場合、片方のウィンドウをスマホの幅にすることで、パソコン版とスマホ版のデザインを一度に確認することが出来ます。 横幅はマウスで自由に変更可能です。

User reviews

Webサイト制作・ミーティングでのレビュー等、とても有用で便利です。仕事が効率化され、Webミーティングでも1つの画面に収まるので、特にあまりWebやスマホに詳しくない人に説明するのが本当に楽です。 ただ、1度起動すると全てのタブが分割されてしまうので、できればタブごとに適用されるといいなと思います。
by 中村由紀子, 2020-02-24

This is awesome. Love it. Look like Blisk browser.
by WordPress Support, 2020-01-09
View all user reviews

Extension safety

Risk impact

Responsive Check!! is relatively safe to use as it requires very minimum permissions.

Risk likelihood

Responsive Check!! has earned a fairly good reputation and likely can be trusted.

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Promo images

Responsive Check!! small promo image
Small promo image

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