Responsive Tester

Test responsive web designs or mobile pages and see if it is mobile friendly

Users40K

Rating3.1

Reviews94

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

Responsive Tester Media preview

3 assets

Trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

3.11

Latest

3.11

30-day rating change

0.00

2026年5月29日2026年6月4日

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Technical snapshot

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Version3.0.0

ManifestV3

Size82.41KiB

Languages38Deutsch / English / Filipino +35

Published--

Store updated--

Last crawled--

Overview

Product summary

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Test responsive web designs or mobile pages that detect specific user agents. Test multiple devices at the same time!

The Mobile/Responsive Tester extension allows Developers to test their web pages against common mobile, phablet and tablet devices by emulating the user agent and screen resolution.

Excellent for testing responsive web designs. Easily switch between portrait and landscape mode and test multiple mobile device's at the same time!

To begin using the software, install our extension.

Navigate to the webpage you wish to test for different resolution sizes.

Click on our software extension icon, and then choose the resolution size.

Reviews

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The Chrome Web Store shows 94 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

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AI product read

Responsive web design testing tool that opens the current webpage in a new window sized to specific mobile/tablet/phablet device screen resolutions

Web developers need to quickly verify that their responsive designs render correctly at various mobile device screen sizes without needing actual devices

1. Navigate to any webpage. 2. Click the extension icon to open the popup. 3. Select a device from the categorized list (Smartphones/Phablets/Tablets). 4. The current page URL opens in a new browser window sized to that device's screen resolution for visual testing.

Target users: Web developers / UI/UX designers / QA testers / Front-end developers

The extension's approach is basic - it only resizes windows, it does not actually emulate user agents, touch events, or CSS media queries as the store description claims
No user-agent spoofing code detected despite the description mentioning 'emulating the user agent'
The homepage_url points to test-responsive.dllplayer.com which was not inspected (external service)

Monetization

No paid features detected

No payment, subscription, premium, upgrade, or billing logic exists anywhere in the extension. All device testing options are freely available. The 'pro' keyword matches are false positives from locale translations (e.g., 'Prova' in Catalan/Italian) and device names (iPad Pro, Surface Pro). The 'license' hit is from jQuery's MIT license header.

Confidence: 100
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension has no login UI, no authentication flow, no account system, and no communication with any backend for authentication. It works entirely locally by opening browser windows at specific device resolutions. The only 'token' hit is from jQuery internals, not authentication.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：activeTab

Publisher

Cool and Fun Software

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access