Mobile simulator - responsive testing tool
Extension Actions
- Extension status: Featured
- Live on Store
Smartphone and tablet simulator on computer with several models to test mobile responsive websites.
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
- Anonymous
- Really Good and helpful while trying to test and build apps. Lovely extension!!!
- Anonymous
- Awesome, i used this extension and it helps me as a developer to check if website i built are fully responsive, cant wait to try the premium version
- Anonymous
- best one
- Anonymous
- When I'm want to scroll in the extension sidebar open it not working. I hope you guy's will fix this. ASAP
- Anonymous
- very interesting plugin. thanks.
- Anonymous
- Best mobile viewer extension I found
- Anonymous
- Whoever build this extension. I deeply send you my sincere gratitude. You are working for humanity. God bless you, my friend.
- Anonymous
- Nice emurator, keep it up guys! 😁
- Anonymous
- Excellent extension to see the mobile viewport. i use it all the time.
- Anonymous
- easy and useful
- Anonymous
- pretty good
- Anonymous
- good help
- Anonymous
- i really enjoy using this extension, it helps alot, especially for a frontend dev like myself
- Anonymous
- very beatiful and usefull plugin
- Anonymous
- Really amazing extension. Makes it easier to test responsiveness
- Anonymous
- it's very very good!
- Anonymous
- This is th best of its kind
- Anonymous
- It is good for my responsiveness testing for my project website.
- Anonymous
- Amazing Work
- Anonymous
- YOU NEED THIS APP!!!!! It's such an amazing tool for writing css!! for my website to make it more responsive! Thank you so much for making many options free!!!
- Anonymous
- Absolutely love this. Made testing responsiveness on different devices an absolute breeze. Love the realistic look of the test device renders as well.
- Anonymous
- Very helpful
- Anonymous
- Good app and easy to use.
- Anonymous
- Pretty good
- Anonymous
- Best!!!
- Anonymous
- perfect
- Anonymous
- excellent, helps me with building websites. well done and thank you.
- Anonymous
- Makes responsive website checks so easy!
- Anonymous
- awesome extension. if only there were more devices on the free varsion. :)
- Anonymous
- This is very nice Extension for sure.
- Anonymous
- The best tool
- Anonymous
- This extension is Awesome .... a real game changer .
- Anonymous
- it is not opening on localhost so what's the usefulness
- Anonymous
- best web extension for programmers that need mobile view
- Anonymous
- Great, wondefull.
- Anonymous
- GREAT!
- Anonymous
- A great extension. Has been very helpful so far.
- Anonymous
- The Best Extension, I've ever seen on the Internet for Responsive Layout, Almost all type of Devices and Ratios were covered in this, easy to understand and well maintained system.
- Anonymous
- best mobile simulator ever
- Anonymous
- Been using for about a year, finally decided to pay for it since it's extremely helpful, and they continually add new devices, such as iPhone 17 suite. I use it on Chrome and Brave. You can't really go wrong, highly recommended.
- Anonymous
- very good and very useful it help me to make resposeve design thank you sooooooooooooooooooooo much
- Anonymous
- wonderfull.........
- Anonymous
- Really appreciate that you made this extension!
- Anonymous
- This product very helpful🔥
- Anonymous
- very good, it helps me alot in my project testings. but you guys should make the iphone 15 free
- Anonymous
- on localhost port.its not working....
- Anonymous
- This extension is extremely useful. Now I do not need to open my phone every time to check the responsive view of any website that I build. Highly recommended.
- Anonymous
- Love this app so much - a must for responsive development.
- Anonymous
- one of the ever best tool for web developers. fast, reliable, real phone ratio. feel same of mobile
- Anonymous
- very good extension very helpful in responsive design.