Mobile simulator - responsive testing tool icon

Mobile simulator - responsive testing tool

by FranΓ§ois Duprat

v4.14.10 Updated Mar 19, 2026 9.73MiB
CWS
1M
Users
β˜… 4.90
4.6K reviews
#165
of 207.1K
tools
#25 of 64.4K
⚠️Requests 1 sensitive permission βœ…Highly rated βœ…1M+ users βœ…Recently updated

Description

Check the rendering on multiple devices, create impactful client demos, and save time in your testing. 58 devices available (with new ones added regularly) πŸ“± 45 smartphones (old and recent) πŸ’» 5 tablet models ⌚️ 11 special devices (smartwatches, kiosks, computers…) Main features 🎬 One-click video capture (WEBM, GIF, MP4) for your demos and tutorials πŸ“Έ Transparent PNG screenshots, perfect for emails or presentations 🌚 Dark mode for enhanced visual comfort Also included ➑️ Free downloadable transparent device mockups ➑️ Option to switch to landscape mode ➑️ Zoom just like on a real mobile ➑️ More than 10 customization options (PWA mode, fullscreen, native keyboard, etc.) Mobile FIRST has been the most powerful and reliable simulation extension for over 5 years. Our rating on the Chrome Store speaks for itself. ✨ It integrates many technical tricks to reproduce the mobile experience as closely as possible. Of course, this does not replace testing on a real device at the end of your development for full validation.
Mobile simulator - responsive testing tool screenshot 1Mobile simulator - responsive testing tool screenshot 2Mobile simulator - responsive testing tool screenshot 3Mobile simulator - responsive testing tool screenshot 4Mobile simulator - responsive testing tool screenshot 5

Reviews (80 cached)

β˜…β˜†β˜†β˜†β˜†2026-03-04
Carlos Zambrano

Very nice tool for mobile view, but you have placed too many ads that is making it buggy and very annoying to use, the modal ad I receive every refresh I made into my app to test the mobile view is super annoying and most of the times breaks the mobile view to not show anything. I will gladly change my rate if you find out another way to place the ads in a way that is not so annoying.

β˜…β˜†β˜†β˜†β˜†2025-12-09
Ashish Vishwakarma

iphone ka simulator not give same responsive as in mobile

β˜…β˜†β˜†β˜†β˜†2025-12-08
Oyinlola Taiye

its not working on local file i mean on HTML file

β˜…β˜†β˜†β˜†β˜†2025-11-23
Tomasz

Every few clicks will popup you to buy PRO version, very annoying, uninstalled!

β˜…β˜†β˜†β˜†β˜†2025-10-12
Faruk Ogunsola

it is not opening on localhost so what's the usefulness

β˜…β˜†β˜†β˜†β˜†2025-10-07
Mehedi

on localhost port.its not working....

β˜…β˜†β˜†β˜†β˜†2025-10-01
Doramii

Unable to take screenshot

β˜…β˜†β˜†β˜†β˜†2025-07-06
Anurag Rathor

Even though the extension works good, giving it 1 star simply for making opting out of data sharing so difficult and unfair. I spent the last 10 mins unchecking all data sharing persmissions with over 100s of partners. Pathetic.

β˜…β˜†β˜†β˜†β˜†2025-06-18
Steven Christian

The tablets and devices are all several years old - nothing current.

β˜…β˜†β˜†β˜†β˜†2025-04-13
Technik Onkel

I’ve contacted the developer three times regarding the same persistent issue and have not received any response. The error message β€œThe video file is empty due to an unknown problem. Please try again or contact us if the problem persists” keeps appearing, making the app completely unusable. It's frustrating to see that even after multiple support requests, there is no communication whatsoever. If the developer is not willing to provide support, the app should not be listed here as a functioning tool. Very disappointing.

β˜…β˜†β˜†β˜†β˜†2025-04-08
Sarah Hose

doesn't work for twitch.tv tried watching for mobile settings on desktop and all it gave me was desktop settings on a " pretend mobile phone screen" it even gave the pop-out viewer that isn't possible on mobile, even though it said it was on m.twitch.tv i was trying to get the settings for audio only but they didn't come up. don't trust this to give you an accurate simulation of a mobile phone on your desktop for all website or players

β˜…β˜†β˜†β˜†β˜†2024-12-02
Thuan Cao

It's very lag

β˜…β˜†β˜†β˜†β˜†2024-08-23
Atif Noor

got blocked on a site

β˜…β˜†β˜†β˜†β˜†2024-07-18
Md Injamul

This is not realtime, If I changes anything in code its not reflecting autometically.

β˜…β˜†β˜†β˜†β˜†2024-07-18
Denis Taran

Shows tons of ads, asks for paid subscription and do many other annoying things. All those 5 star reviews are probably fake.

β˜…β˜†β˜†β˜†β˜†2024-07-06
peter barnes

not worth the bother... perhaps if it was purchased, but I see nothing worth looking further when our Pixel 8 Pro, Pixel 7 Pro, or Pixel 4A phones are not listed. While the Pixel 8 is listed as available that would not give me a secure feeling that compatibility would be reachable. A particularly bad indicator of poor design and questionable value is that the initial display gives access to a garbled list of phones (Primarily Apple). Looking at the menu items on the upper Right, you can find an attempt to patch the user interface. My programming team members would be foolish or afraid to present such a poor interface for my review.

β˜…β˜†β˜†β˜†β˜†2024-05-29
Jun

bug, it not worked

β˜…β˜†β˜†β˜†β˜†2024-04-09
whericky souza

oh nice

β˜…β˜†β˜†β˜†β˜†2024-03-04
Riccardo Pepe

It's unbelievable this extension has 4.9 stars. It is useless. The only thing for which could be usefull (to simulate an IOS behavior) does not work: when I try to simulate an iphone device I have totally different layout than my physical device. For all the other purpose you already have Chrome Developer Tool...

β˜…β˜†β˜†β˜†β˜†2024-01-29
αž›αžΈαž αž½αžš αž„αŸ‰αž»αž™αž‘αŸ’αžšαžΈ

why i can download on brave ?

β˜…β˜†β˜†β˜†β˜†2023-12-20
Michael Meo

I pay for the premium. It is super buggy. Most screen recording are useless because they have strange flares and lines that cut across.

β˜…β˜†β˜†β˜†β˜†2023-08-29
Łukasz kowalczyk

IOS is fake. Does not work! Works only android this same as build in chrome.

β˜…β˜†β˜†β˜†β˜†2023-04-12
TheSystemGuy128

Not a good simulator. Controls are clunky and hard to use and is your typical trashware subscription model type of deal. Inspect Element offers this for FREE, and is built-in to Chrome and is more flexible. Save your money and AVOID.

β˜…β˜†β˜†β˜†β˜†2023-02-20
Taylor Martin

Looked great. But when I tested our website on it, and then looked at it on my phone it wasn't even close to how it was looking the phone. I give it a fail.

β˜…β˜†β˜†β˜†β˜†2022-08-06
Kenn Herman

Vendor will not provide support let alone answers to questions for paying customers.

β˜…β˜†β˜†β˜†β˜†2022-04-08
Carvin Choo

I bought the damn thing so stop asking me for a damn review every time a click a button on the screen

β˜…β˜†β˜†β˜†β˜†2022-02-04
Fit β€œfor” Fart

Only simulates the image size and not the browser. It's better to use the free developer tools from Chrome.

β˜…β˜†β˜†β˜†β˜†2021-11-21
Suyadi

They upload my screencast to their server without my permission, avoid!

β˜…β˜†β˜†β˜†β˜†2021-11-17
Max

Doesn't Work With Youtube

β˜…β˜†β˜†β˜†β˜†2021-08-21
Dian Dian

this extension has upload my screencast to their server without my permision T_T

β˜…β˜†β˜†β˜†β˜†2021-08-21
ma yehan

No guide on how to use this extension, bad review

β˜…β˜†β˜†β˜†β˜†2021-08-20
Ahsan Sarwar

Free to paid app within a day. That strategy doesn't look good. you need to inform in your app section that your app gonna be paid soon.

β˜…β˜†β˜†β˜†β˜†2021-08-10
Grega Stor

How stupid, to create a Ctrl+Z shortcut to open it! It just makes it - useless.

β˜…β˜†β˜†β˜†β˜†2021-06-01
iPhone Acil Servis

no 8 plus

β˜…β˜†β˜†β˜†β˜†2021-03-13
Carl La Fong

Does not support incognito and has persistent ad display

β˜…β˜†β˜†β˜†β˜†2021-03-13
Devjyoti Saha

there is no zoom or pinch to zoom option, its useless

β˜…β˜†β˜†β˜†β˜†2021-03-13
Swasti Saha

Does not show any webpages properly , not even Gmail or playstore doesn't work too

β˜…β˜…β˜†β˜†β˜†2026-03-09
Kostas Er

picks domains.

β˜…β˜…β˜†β˜†β˜†2026-01-06
Wade Murdock

It does not apply the iPhone's default browser styling to elements/text, or inputs like Checkboxes, Textboxes, etc. So it's useless. You might as well just open Dev tools and shrink the viewport's width that way. But it looks nice.

β˜…β˜…β˜†β˜†β˜†2024-03-25
Alexey Rogulin

Causes OpenSearch Dashboards to show a warning: "Your browser does not meet the security requirements for OpenSearch Dashboards", uninstalling it.

β˜…β˜…β˜†β˜†β˜†2023-11-30
asenvolev

good but there is a problem - on iphone i can not hide the toolbar of safari or move it on the bottom. I have a bug which is related with hiding the toolbar

β˜…β˜…β˜†β˜†β˜†2023-10-12
RCCG DTCE

This is just too perfect

β˜…β˜…β˜†β˜†β˜†2023-02-03
dennis denn

It stopped working about 4 days ago. Don't know whether theyll address this

β˜…β˜…β˜†β˜†β˜†2022-01-31
Peter Hindes

It does not show what a mobile device actually sees. The css is all messed up, but works fine on real devices.

β˜…β˜…β˜†β˜†β˜†2022-01-12
Oskar Mothander

On iPhone the bottom toolbar - when visible - overlays the bottom of the page and 100vh is the entire screen area minus safari top toolbar. When using this emulation tool this is not properly reflected but acts as Android/Chrome. So for me using this extension doesn't bring any value.

β˜…β˜…β˜†β˜†β˜†2021-11-13
Hartanta Hartanta

its great but horizontal menu slider is not working

β˜…β˜…β˜†β˜†β˜†2021-06-30
Boban Lapcevic

Well as it is based on chrome it is not simulator. I needed to see how some website looks on iphone. But it is the same as I use chrome dev tools, no default iphone styling what i would like to test. So not work, and not good enough for me at the moment.

β˜…β˜…β˜…β˜†β˜†2026-02-13
5hehzad

Extension is not opening sometime

β˜…β˜…β˜…β˜†β˜†2026-02-12
Vincent Leuer

The extension itself is well-made, the UI is clean, the device mockups look great, and it's genuinely useful for quick responsive checks. However, charging €8/month (or €60/year on yearly billing) to unlock devices newer than 4 years old feels completely disproportionate to the value. At its core, this is a curated library of device resolutions with visual mockups, functionality that most browser DevTools offer for free, minus the pretty frames. I understand the need to monetize, but this pricing puts it in the range of full-featured dev tools that offer significantly more. A one-time purchase (of devices up to that point) or a much lower subscription (2-3€/month) would be far more reasonable and likely attract more paying users.

β˜…β˜…β˜…β˜†β˜†2025-11-22
Mahyar Tehrany

I didn't understand if it's free or not?! πŸ€” And can we install an Android phone app from the Google Play and use it?

Permissions (11)

Permissions

activeTabβ„Ή Can access the current tab when you click the extension commands contextMenusβ„Ή Can add items to the right-click menu declarativeNetRequestβ„Ή Can block or redirect network requests offscreen scriptingβ„Ή Can inject scripts into web pages storageβ„Ή Can store data locally in your browser tabCaptureβ„Ή Can capture tab audio/video tabsβ„Ή Can see your open tabs and their URLs webNavigationβ„Ή Can monitor navigation events webRequestβ„Ή Can observe and analyze network traffic

Details

Version 4.14.10
Updated Mar 19, 2026
Size 9.73MiB
First Seen Mar 22, 2026