Mobile Simulator MSIM Responsive Viewer icon

Mobile Simulator MSIM Responsive Viewer

by 4SPACES SP Z O O · msim.app · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Professional mobile device simulator with multiple views, extensive device library, and sync scrolling

Users
1,000
0 in 30 days
Rating
4.6 / 5
−0.40 in 30 days
Ratings
10
+2 in 30 days
Store rank
#26K
#22K among extensions
Version
2.2.0
updated 18 Aug 2026

Users

monthly, 10 months
05001,000Dec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 1,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months
0510Dec 2025Jun 2026Oct 2026
Latest, 15 Oct 2026: 10 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Mobile Simulator MSIM Responsive Viewer

Mobile Simulator MSIM Responsive Viewer Test, preview, and debug responsive designs across a large library of mobile devices and tablets with a Mobile Simulator for Chrome. 🚀 Why Choose Mobile Simulator MSIM? Designing for the modern web requires testing across dozens of screen sizes. Mobile Simulator MSIM Responsive Viewer transforms your browser into a professional testing suite, allowing you to simulate any smartphone or tablet directly on your desktop. 📱 Extensive Device Library Stop guessing how your site looks. Our Mobile Simulator provides high-fidelity frames for popular iPhones, iPads, Samsung Galaxy, Google Pixel, and other common Android phones and tablets. Need a specific breakpoint? Use our Custom Device tool to enter any width and height. 🔥 Top Professional Features Sync Scroll (Synchronized Scrolling): Scroll on one device and watch all other simulated screens follow in real-time. Perfect for side-by-side comparison testing. Multi-View Mode: Open 2, 3, or 4 devices simultaneously to view your entire responsive grid at once. Device Frames & Notches: See your website exactly as your users do, including hardware frames and screen notches for a realistic Mobile View. One-Click Rotation: Instantly toggle between Portrait and Landscape modes to test orientation changes. Quick Action Sets: Use pre-configured bundles like the "Popular 3-Pack" or "iOS Set" to speed up your workflow. GEO Checker: From Quick Actions, enter your website URL and open GEO Checker to see what ChatGPT knows about your site — and how to make it know more. 🛠 Built for Developers & Designers Whether you are a web developer debugging a CSS issue or a designer performing a UX audit, this Responsive Viewer provides a seamless environment to ensure your site is mobile-friendly. It is a more visual and intuitive Mobile Simulator experience than a single-viewport DevTools check. Transform your workflow today. Install the Mobile Simulator MSIM Responsive Viewer and build a better mobile web.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%+1−0.40
30 days0+0.0%+2−0.40
6 months+334+50.2%+6−0.40

Chrome Web Store search rankings

Where Mobile Simulator MSIM Responsive Viewer appears when people search the store, with the 30 day change
Search phrasePosition30 days
mobile#9+1
mobile view#14−1
device#67+17

Version history

3 versions recorded
2.2.09 Aug 2026
2.1.1121 Jul 2026
2.024 Dec 2025

Details

Category
Developer Tools
First seen
24 Dec 2025
Size
59 KB
Languages
en
Pricing
Free
Extension ID
peipdddkaeomnfdenmkddkapeemjomnb

Permissions and risk

Minimal riskimpact 0, likelihood 2
Permissions
activeTabscriptingstorage

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