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Viewport Resizer: Ultimate Device Emulator & Website Testing Tool

Malte Wassermann Developer Tools

Chrome Web Store Compare alternatives

By the numbers

STORE DATA
Reported users
80,000
Store rating
4.1 / 5
Number of ratings
286
Last updated
Dec 16, 2025

From the developer's store listing

Emulate devices, resize screens, and perfect your web design effortlessly with this cutting-edge testing and presentation tool.
Version
2.0.4
Package size
134KiB
Developer
Malte Wassermann
Extension ID
kapnjjcfcncngkadhpmijlkblpibdcgm
Collected at
Oct 16, 2026 · 21:06 UTC
Store icon URL
View original icon
Source listing
Chrome Web Store

Permission access

Moderate

Permission scope describes declared capabilities. How scope is assigned

  • Requests access to all websites via <all_urls> (host_permissions)
Manifest version
3
All-sites access
Yes
Sensitive permissions
None declared in the collected data.

Requested browser APIs permissions (4)

  • activeTab
  • declarativeNetRequest
  • scripting
  • storage

Host access host_permissions (1)

  • <all_urls>

Content-script matches content_script_matches (0)

None declared in the collected data.

Optional permissions

Requested only at runtime if the user grants them. Shown as declared in the manifest; not part of the scope label.

None declared

Observed change history

First observed Oct 16, 2026; no changes recorded yet.