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Responsive Website Testing Toolkit - Multiple Viewport Simulator

Chrome extension by Rahul Baruri · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 6 000 users, a small but real audience.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 4 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
6 000
Rating
4.0 (22 ratings)
Users, last 13 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.0.2
Updated in the store
2026-05-19
Published
2024-12-04
Manifest
V3
Browser access
4 permissions, 2 site patterns

How it has moved

Users
unchanged since 01.09
6k · 2 readings
  1. 2026-09-016k
  2. 2026-09-136k
Rating
unchanged since 01.09
reviewsrating 4.00 · 2 readings
  1. 2026-09-01reviews22rating4.00
  2. 2026-09-13reviews22rating4.00
Users
unchanged since 01.09
6k · 2 readings
  1. 2026-09-016k
  2. 2026-09-136k
Rating
unchanged since 01.09
reviewsrating 4.00 · 2 readings
  1. 2026-09-01reviews22rating4.00
  2. 2026-09-13reviews22rating4.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • Manage your downloads downloads
  • Run its own code on the pages it can access scripting
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Rahul Baruri publishes 9 listings we track, 337k users between them. Listed website: addonise.com.

  1. JSON Viewer Pro Rahul Baruri · Productivity · Developer · published 2020-10-04 300k users ★ 4.6
  2. Full Page Screenshot Rahul Baruri · Productivity · Tools · published 2020-08-04 10k users ★ 3.8
  3. Photo Editor Rahul Baruri · Productivity · Workflow · published 2020-07-28 8k users ★ 4.2
Show 5 more from this publisher
  1. Fallen Price - A Price tracker for Amazon, Ebay, Walmart and more Rahul Baruri · Lifestyle · Shopping · published 2020-06-04 5k users ★ 4.1
  2. Smart Color Picker and Palettes Rahul Baruri · Productivity · Tools · published 2020-08-18 3k users ★ 4.4
  3. QR Code Scanner and Generator Rahul Baruri · Productivity · Workflow · published 2021-09-24 2k users ★ 4.0
  4. SEO Buddy - On-Page SEO Analyser Rahul Baruri · Productivity · Developer · published 2023-08-23 2k users ★ 5.0
  5. Extension Manager Rahul Baruri · Productivity · Tools · published 2022-02-05 1k users ★ 4.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. MultiView - Device Responsive Simulator Describes nearly the same job, smaller audience 97 users
  2. FrameFusion Describes nearly the same job, smaller audience 16 users
  3. Responsive Simulator - Multi Device Viewport Tester Describes nearly the same job, smaller audience 12 users
  4. ResponsiveFrame Describes nearly the same job, smaller audience 3 users
  5. ViewPortX - Responsive Testing Workspace Describes nearly the same job, smaller audience 7 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.