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ViewPortX - Responsive Testing Workspace

Chrome extension by Med Clinic X · Productivity · Developer

A Chrome extension in Productivity · Developer with 7 users, barely installed. Audience over the last 30 days: unchanged.

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

What the developer says, and 5 screenshots

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

Users
7
Rating
not rated yet
Users, last 30 days
Unchanged
Version
1.0.0
Updated in the store
2026-07-27
Published
2026-07-27
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
unchanged since 10.10
5-7 · 9 readings
  1. 2026-10-107
  2. 2026-10-165
  3. 2026-10-246
  4. 2026-10-255
  5. 2026-10-276
  6. 2026-11-057
  7. 2026-11-076
  8. 2026-11-087
  9. 2026-11-097
Users
+1 since 01.09
5-9 · 24 readings
  1. 2026-09-016
  2. 2026-09-038
  3. 2026-09-047
  4. 2026-09-067
  5. 2026-09-098
  6. 2026-09-107
  7. 2026-09-158
  8. 2026-09-177
  9. 2026-09-208
  10. 2026-09-217
  11. 2026-09-258
  12. 2026-09-269
  13. 2026-09-288
  14. 2026-10-057
  15. 2026-10-098
  16. 2026-10-107
  17. 2026-10-165
  18. 2026-10-246
  19. 2026-10-255
  20. 2026-10-276
  21. 2026-11-057
  22. 2026-11-076
  23. 2026-11-087
  24. 2026-11-097

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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.

  • See the address and title of every tab you have open tabs
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • Act on the current tab, but only after you click it activeTab
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

Med Clinic X publishes 14 listings we track, 57 users between them.

  1. Reader Mode - Distraction-Free Reading Med Clinic X · Productivity · Workflow · published 2026-07-30 10 users
  2. Med Clinic X Health Calculator Suite Med Clinic X · Productivity · Tools · published 2026-07-21 7 users ★ 5.0
  3. StackAnalyzer — AI Website Intelligence Platform Med Clinic X · Productivity · Developer · published 2026-07-27 5 users
Show 5 more from this publisher
  1. Lingua — Web Translator & Assistant Med Clinic X · Productivity · Tools · published 2026-08-03 4 users ★ 5.0
  2. Link Checker - Website Health & Audit Med Clinic X · Productivity · Tools · published 2026-08-04 4 users (last published figure)
  3. ColorLens — Smart Color Picker & Design System Assistant Med Clinic X · Productivity · Developer · published 2026-08-05 4 users
  4. TimeScope - AI Productivity Assistant Med Clinic X · Productivity · Workflow · published 2026-07-28 3 users ★ 5.0
  5. TaskManager - Daily Planner & Focus System Med Clinic X · Productivity · Workflow · published 2026-07-28 3 users

Like this one

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

  1. Rocket Viewport Describes nearly the same job, smaller audience 6 users
  2. Responsive Preview Describes nearly the same job, smaller audience 55 users
  3. ViewPortify – Mobile Simulator & Responsive Design Testing Tool for Chrome Describes nearly the same job, smaller audience 60 users
  4. ResponsiveFrame Describes nearly the same job, smaller audience 7 users
  5. Responsive Website Testing Toolkit - Multiple Viewport Simulator Describes nearly the same job, smaller audience 6k users ★ 4.0

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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/nbggbfnkhonjnmgieofjgpdmbinnkldj/badge.svg)](https://extops.dev/extensions/nbggbfnkhonjnmgieofjgpdmbinnkldj)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-08. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built