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Responsive Design

By SBS

Preview any website on 40+ devices. Compare responsive layouts with real device resolutions. Free for developers.

View Chrome Web Store

Time on the storeUnder a yearA rough range, not an exact date

Store users45As shown on the Chrome Web Store

Chrome Web Store ratingNot rated yetNo store ratings yet

Last store update20 Apr 2026Version 1.0.1, 6 months ago

Inside the extension

Responsive Design developer product preview 1

Product image 1 of 4

Reviews

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Permissions & access

Access levelMedium

Can see the address and title of every open tab.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 3

Sensitive1

See the address and title of every open tabtabs

Standard2

Work on the tab you click it onactiveTab
Save its own settingsstorage

Members also see when a new version asks for new access.

Website access 0

No website access beyond the tab you click it on.

Extension ID: oimmlbaipoamplpphgcijigjbhgafhef
Package size: 21.71KiB
Manifest: Version 3

The maker

SBS has 18 listings on the store. Updates now and then.

Listings: 18
Combined store users: ≈589
Store Featured: 0
Updated in the last 90 days: 2 of 18

X Cleaner - Twitter Tweet Deleter & Eraser Tool302 users · updated 6 days ago
Histozon — Amazon Price Tracker63 users · updated 6 days ago
CMS & Plugin Detector50 users · updated 4 months ago
What Color Is This22 users · updated 6 months ago

Combined users can count the same person more than once. See all 18 listings

Ext Watch AI

Should you build in this niche?

One research report for Responsive Design. Reports come with Plus, Pro and Max.

Takeaway & demandCited takeaway and search volumes
Traffic & domainPopularity rank, visits and authority
Money & pricingPlans and prices from the maker’s site
ReviewsComplaints and praise, quoted
Competitors & ranksRank against the closest listings
Build opportunityWhat to build and how to position it

Every number shows its source and date
Ready in a minute or two
Report and PDF yours for 30 days