Responsive Check!! icon

Responsive Check!!

by capotast.co.jp · capotast.co.jp · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

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…

Users
3,000
0 in 30 days
Rating
4.8 / 5
unchanged in 30 days
Ratings
4
0 in 30 days
Store rank
#18K
#15K among extensions
Version
1.0.2
updated 8 Jun 2022

Users

monthly, 3 years
1,0002,5004,000Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 3,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
124Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 4 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Responsive Check!!

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。

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months0+0.0%00.00
1 year0+0.0%00.00

Version history

2 versions recorded
1.0.28 Jun 2022
1.0.125 Apr 2017

Details

Category
Developer Tools
First seen
25 Apr 2017
Size
44 KB
Languages
en, ja
Pricing
Free
Privacy policy
capotast.co.jp
Extension ID
nblkfiamblkjblenkgajmjfampppmonh

Permissions and risk

Low riskimpact 1, likelihood 1
Permissions
storage

Alternatives to Responsive Check!!

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users
GoFullPage - Full Page Screen Capture11M users · 4.9 ★ · 84,378 ratings touchenex 확장8M users · 1.2 ★ · 6,327 ratings TrendAI™ Toolbar for Enterprise7M users · 1.2 ★ · 45 ratings SentinelOne6M users · 1.4 ★ · 190 ratings React Developer Tools5M users · 3.5 ★ · 1,643 ratings ColorZilla4M users · 4.7 ★ · 3,939 ratings Take Webpage Screenshots Entirely - FireShot3M users · 4.9 ★ · 52,614 ratings WhatFont3M users · 3.8 ★ · 2,056 ratings