CRX id
ckejmhbmlajgoklhgbapkiccekfoccmk
ckejmhbmlajgoklhgbapkiccekfoccmk
Description from extension meta
Smartphone and tablet simulator on computer with several models to test mobile responsive websites.
Image from store
Description from store
Check the rendering on multiple devices, create impactful client demos, and save time in your testing.
58 devices available (with new ones added regularly)
📱 45 smartphones (old and recent)
💻 5 tablet models
⌚️ 11 special devices (smartwatches, kiosks, computers…)
Main features
🎬 One-click video capture (WEBM, GIF, MP4) for your demos and tutorials
📸 Transparent PNG screenshots, perfect for emails or presentations
🌚 Dark mode for enhanced visual comfort
Also included
➡️ Free downloadable transparent device mockups
➡️ Option to switch to landscape mode
➡️ Zoom just like on a real mobile
➡️ 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.
Latest reviews
- (2025-09-01) Excellent extension
- (2025-09-01) Very useful, very handy
- (2025-08-31) One of the best extensions ever. Simple, stable, solves the problem. What else do I need?
- (2025-08-30) Literally the bes extension i have, Im a developer and Its super usefull. I always recommend it to my coworkers
- (2025-08-30) INCRRR
- (2025-08-29) Really, really good
- (2025-08-29) the best app
- (2025-08-28) top!
- (2025-08-27) Very convenient and does it perfectly. Works fine in Opera too.
- (2025-08-27) nice extension
- (2025-08-26) if you're a web developer, this is the best extension ever you can have. SO USEFUL!!!!! THANKS TO webmobilefirst.com FOR CREATING THIS EXTENSION.
- (2025-08-26) beauty
- (2025-08-25) Awesome
- (2025-08-25) Cool and its very simple and useful for mobile webview testing
- (2025-08-23) love
- (2025-08-22) Really cool extension
- (2025-08-20) It is good and needed for designers
- (2025-08-20) ok
- (2025-08-20) Whenever I install Chrome, I immediately install this extension. It is my life saver
- (2025-08-19) Really Useful Extension For Developers. Thanks For The Amazing Idea. I am Using it EveryDay.
- (2025-08-17) Good tools! Its working perfectly
- (2025-08-16) Super useful tool!! 5 stars
- (2025-08-16) Very useful extension :)
- (2025-08-15) A very simple, flexible, and helpful extension. I loved it. Thank you for such an amazing extension.
- (2025-08-15) very simple and flexible, helpful and great extension as well. thank you
- (2025-08-15) excelentee
- (2025-08-15) Great application. I use it all the time
- (2025-08-15) perfect and useful
- (2025-08-13) AMAZINGGGGG
- (2025-08-13) One of the best mobile extensions so far. Provides you with the perfect resolution and dimensions of real mobile devices. A shout out to the development team of this extension.
- (2025-08-13) great tool, besides the extensive device simulations, i especially like how when google chrome saves a cache of my designs so when i update the disgn, i still see the onld one. But with mobile simulator, once i launch the tool it forces chrome to fetch the latest styling.
- (2025-08-13) comes with alot, even screen recording in different screen size!
- (2025-08-12) that application is realyy help full for the front-end to check the responsive ness off their layouts that they careate truly helpfull keep growing 💪💪
- (2025-08-12) Nice and very helpful chrome extension..
- (2025-08-09) very useful tool 100% recomended
- (2025-08-09) i love it, its help me alot
- (2025-08-08) super working and best for front end developer.
- (2025-08-08) Amazing tool crucial for web development across devices.
- (2025-08-08) love it
- (2025-08-08) Amazing extension, work properly and please just add some free more realistic and perspective mockups
- (2025-08-04) helpful
- (2025-08-02) Cool and useful for UI/UX designers and developers.
- (2025-08-01) Solid extension.
- (2025-07-31) Far exceeds my expectations!
- (2025-07-31) good!
- (2025-07-31) Super useful
- (2025-07-30) Just Owesome :)
- (2025-07-29) excellent extension work vey well its help me alot
- (2025-07-28) Its amazing very useful. Having the chance to watch with precision how the app will see in the mobile and other devices for developers.
- (2025-07-28) really very awesome