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Viewport Studio — Responsive Workspace

Chrome extension by JamesonB Designs · Productivity · Developer

A Chrome extension in Productivity · Developer with 2 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 5 screenshots

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

Users
2
Rating
not rated yet
Users, last 5 days
+1
Version
1.6.0
Updated in the store
2026-10-06
Published
2026-10-03
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
+1 since 04.10
1-2 · 2 readings
2026-10-04: appeared in the store2026-10-07: released 1.6.0
  1. 2026-10-041appeared in the store
  2. 2026-10-082
Users
+1 since 04.10
1-2 · 2 readings
2026-10-04: appeared in the store2026-10-07: released 1.6.0
  1. 2026-10-041appeared in the store
  2. 2026-10-082

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 on the sites it can access declarativeNetRequestWithHostAccess
  • Manage your downloads downloads
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.6.0 · Asked for more permissions (5, was 4)

What changed recently

  1. Package size changed
  2. Asked for more permissions (5, was 4)
  3. Store description rewritten (127 → 131 characters)
Show the remaining 2
  1. Released version 1.6.0 (was 1.0.0)
  2. Appeared in the store

The publisher

JamesonB Designs. Listed website: jamesonbdesigns.com.

Like this one

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

  1. Viewport Lab Describes nearly the same job, smaller audience 9 users
  2. MEDPOV Responsive Device Studio Describes nearly the same job, smaller audience 18 users
  3. Responsive Viewer Describes nearly the same job, smaller audience 124 users ★ 5.0
  4. ResponsiveFrame Describes nearly the same job, smaller audience 7 users
  5. Responsive Viewer Describes nearly the same job, smaller audience 407 users ★ 5.0

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.

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.