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ViewPortify – Mobile Simulator & Responsive Design Testing Tool for Chrome

Chrome extension by tinyconvert.com · Productivity · Developer

A Chrome extension in Productivity · Developer with 48 users, barely installed.

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

What the developer says, and 2 screenshots

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

Users
48
Rating
not rated yet
Users, last 15 days
+3
Version
1.0.1
Updated in the store
2026-03-01
Published
2026-03-01
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
+3 since 31.08
45-48 · 7 readings
  1. 2026-08-3145
  2. 2026-09-0246
  3. 2026-09-0447
  4. 2026-09-0845
  5. 2026-09-0947
  6. 2026-09-1348
  7. 2026-09-1448
Users
+3 since 31.08
45-48 · 7 readings
  1. 2026-08-3145
  2. 2026-09-0246
  3. 2026-09-0447
  4. 2026-09-0845
  5. 2026-09-0947
  6. 2026-09-1348
  7. 2026-09-1448

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.

  • See the address and title of every tab you have open tabs
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • Block or redirect requests on the sites it can access declarativeNetRequestWithHostAccess
Show the remaining 3
  • Manage your downloads downloads
  • Act on the current tab, but only after you click it activeTab
  • 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

tinyconvert.com publishes 25 listings we track, 2k users between them. Listed website: tinyconvert.com.

  1. User-Agent Switcher & Manager Pro tinyconvert.com · Productivity · Workflow · published 2026-04-05 789 users ★ 4.5
  2. Super Volume Booster tinyconvert.com · Productivity · Workflow · published 2025-11-17 337 users
  3. AdGuard Plus - Block All Ads tinyconvert.com · Productivity · Tools · published 2026-02-23 304 users ★ 3.0
Show 5 more from this publisher
  1. Image Save as Type (JPG, PNG, WebP) tinyconvert.com · Productivity · Workflow · published 2025-12-09 159 users
  2. Page Marker Pro - Draw on Web Pages tinyconvert.com · Productivity · Workflow · published 2025-11-21 135 users
  3. SoundWave - Audio Equalizer tinyconvert.com · Productivity · Workflow · published 2026-03-07 118 users ★ 5.0
  4. Enable Right Click - Allow Copy & Select Text tinyconvert.com · Productivity · Workflow · published 2025-12-03 75 users
  5. WhatFont – Website Font Finder tinyconvert.com · Productivity · Workflow · published 2026-03-09 46 users

Like this one

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

  1. Responsive Simulator - Multi Device Viewport Tester Describes nearly the same job, smaller audience 12 users
  2. Mobile Responsive Simulator & Tester by HAX-AI Describes nearly the same job, smaller audience 19 users ★ 5.0
  3. MultiView - Device Responsive Simulator Describes nearly the same job, smaller audience 97 users
  4. Mobile simulator - responsive testing tool Describes nearly the same job, with a large installed audience 1.0M users ★ 4.9
  5. Responsive Tester — Mobile View by BugCapture Describes nearly the same job, smaller audience 6 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?

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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.