MobileView.app
Responsively
Responsinator
Sizzy
Polypane
Responsive View
Responsive Viewer
U-Eyes: Mobile Device Simulator
BrowserStack
TestMu AI (Formerly LambdaTest)
Sauce Labs
CrossBrowserTesting
Selenium
browserling
Ghost Inspector
Katalon
Mobile View is a free Chrome extension that overlays a real device frame on top of any live page, so you can see the desktop and mobile (or tablet) layout at the same time, in the same tab. Scrolling, clicks and typing stay in sync between the two views.
It's built for responsive web design work: preview a site across different phones and tablets without leaving the page, take clean device-framed screenshots for clients, portfolios or a GitHub README, and record the screen to show a layout in action.
Everything runs locally in the browser โ no servers, no analytics inside the extension, no tracking.
BrowserStack is a leading software testing platform powering over two million tests every day across 15 global data centers. With BrowserStack, developers can comprehensively test their websites and mobile applications across 2,000+ real mobile devices and browsers in a single cloud platformโand at scale. BrowserStack helps Tesco, Shell, NVIDIA, Discovery, Wells Fargo, and over 50,000 customers deliver quality software at speed.
MobileView.app BrowserStackMobileView.app's answer
It's a Chrome extension (Manifest V3) built with vanilla JavaScript, HTML and CSS using the Chrome extension APIs. Screen recording uses the browser's native capture and WebCodecs APIs. The website is a static site.
MobileView.app's answer
Web developers, front-end developers and designers who work with responsive layouts every day โ plus freelancers showing work to clients, and anyone building a portfolio or GitHub README that needs clean device-framed screenshots.
MobileView.app's answer
Most tools make you switch between desktop and mobile views. Mobile View shows both at the same time, in the same tab โ a real device frame sits on top of the live page, and scrolling, clicks and typing stay in sync between the desktop layout and the device preview. It's a lightweight browser extension rather than a separate app or paid cloud service, and everything runs locally with no tracking.
MobileView.app's answer
I'm a full-stack web developer, and I kept hitting the same friction: checking how a site looked on mobile while building the desktop version, and explaining responsive behaviour to clients over a call. Existing options either hid the desktop layout or felt clumsy, so I built the tool I wanted for myself โ and turned it into a free extension when other developers kept asking about it.
MobileView.app's answer
It's free, installs in one click, and works directly on any live page โ no separate app, account, or cloud service. You get desktop and mobile side by side with synced interaction, clean device-framed screenshots, and screen recording for client demos, all locally in your browser with no analytics or tracking.
Based on our record, BrowserStack seems to be more popular. It has been mentiond 8 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This is pretty cool - the Jira/Linear integration could save a ton of manual work. How do you handle test data setup and teardown? That's usually where these workflows get messy. For alternatives in this space, there's qawolf (https://qawolf.com) for similar automated testing workflows, or I'm actually building bug0 (https://bug0.com) which also does AI-powered test automation, still in beta. For the more... - Source: Hacker News / about 1 year ago
Platforms like Browserstack or SauceLabs offer virtual instances of real devices and browsers for manual and end-to-end testing. Caveat: subscriptions cost money and are on a per-seat basis. - Source: dev.to / about 2 years ago
If you go to browserstack.com (a website to test other websites) you can probably to the chatgpt url and sign up there. Source: over 3 years ago
For testing on Mac or iOS, use browserstack.com, you'll spend considerably less using that than you would buying the actual hardware. Source: over 3 years ago
I've seen subscription services such as browserstack.com and lambdatest.com but I believe they cost to get the full range of mac browsers and devices. Source: over 3 years ago
Responsively - Develop responsive web-apps 5x faster!
TestMu AI (Formerly LambdaTest) - Worldโs first full-stack Agentic AI Quality Engineering platform.
Responsinator - Designed to test responsive websites on different devices.
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
Sizzy - The browser for designers and developers
CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.