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Responsive View VS MobileView.app

Compare Responsive View VS MobileView.app and see what are their differences

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Responsive View logo Responsive View

Test your responsive design across different devices

MobileView.app logo MobileView.app

A free Chrome extension that shows your site on desktop and mobile at the same time, in one tab โ€” with synced scrolling, device-framed screenshots, and screen recording for responsive design work.
  • Responsive View Landing page
    Landing page //
    2022-01-18
  • MobileView.app Desktop and mobile preview side by side
    Desktop and mobile preview side by side //
    2026-06-11
  • MobileView.app Device-framed screenshot
    Device-framed screenshot //
    2026-06-11
  • MobileView.app Choosing a device
    Choosing a device //
    2026-06-11

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.

Responsive View

Website
responsiv.eu
$ Details
-
Platforms
-
Release Date
-
Edit details

MobileView.app

Website
mobileview.app
$ Details
free
Platforms
Google Chrome Brave
Release Date
2026 May
Startup details
Country
Germany
Founder(s)
Roman Serenko
Employees
1 - 9
Edit details

Responsive View features and specs

  • Versatile Testing
    Responsive View allows users to test websites across multiple devices and screen sizes, ensuring that designs are truly responsive and function well on various platforms.
  • Ease of Use
    The platform is designed to be user-friendly, making it easy for designers and developers to quickly test and preview websites without needing complex setup.
  • Cost Efficiency
    It can be a cost-effective solution for developers and designers who need to frequently test responsive designs without investing in physical devices.

Possible disadvantages of Responsive View

  • Limited Realism
    While it simulates different devices, the testing experience may not perfectly replicate the performance and behavior on actual physical devices.
  • Potential Compatibility Issues
    Some advanced device-specific features or interactions might not be accurately represented, leading to differences between the simulation and real-world performance.
  • Dependency on Internet
    Since it's an online tool, a stable internet connection is necessary for its proper functioning, which could be a limitation in environments with poor connectivity.

MobileView.app features and specs

  • Side-by-side preview
    See the desktop and mobile layout at the same time, in one tab.
  • Synced interaction
    Scrolling, clicks and typing stay in sync between both views.
  • Multiple Devices
    Switch between phones and tablets, rotate, and scale the preview.
  • One-click Screenshots
    Capture clean device-framed screenshots instantly.
  • Screen recording
    Record the preview as a video for client demos.
  • Privacy-first
    Runs locally in the browser โ€” no servers, no tracking.

Analysis of MobileView.app

Overall verdict

  • MobileView.app appears to be a niche tool designed for previewing or testing how websites and apps render on mobile devices, offering a convenient way for developers and designers to check responsive design without needing multiple physical devices. Based on its apparent purpose, it can be a useful and good tool for quick mobile view testing, though it likely doesn't replace comprehensive testing platforms for professional-grade quality assurance.

Why this product is good

  • Provides a quick and easy way to preview mobile responsiveness of websites
  • Eliminates the need for multiple physical devices for basic testing
  • Likely offers a simple, user-friendly interface for fast checks
  • Useful for designers and developers during the development process
  • May support various device screen sizes and resolutions for broader testing

Recommended for

  • Web developers checking responsive design during development
  • UI/UX designers validating mobile layouts quickly
  • Freelancers or small teams without access to device testing labs
  • Students or hobbyists learning about responsive web design
  • Quick sanity checks before deploying to full-scale testing tools

Responsive View videos

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MobileView.app videos

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Mobile View โ€” Preview your website across desktop, mobile and tablet

Category Popularity

0-100% (relative to Responsive View and MobileView.app)

Responsive View

MobileView.app

Design Tools
85 85%
Design Tools
15% 15
Frontend Development
0 0%
Frontend Development
100% 100
Developer Tools
80 80%
Developer Tools
20% 20
Web Development Tools
0 0%
Web Development Tools
100% 100

Questions & Answers

As answered by people managing Responsive View and MobileView.app.

Which are the primary technologies used for building your product?

MobileView.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.

How would you describe the primary audience of your product?

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.

What makes your product unique?

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.

What's the story behind your product?

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.

Why should a person choose your product over its competitors?

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.

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What are some alternatives?

When comparing Responsive View and MobileView.app, you can also consider the following products

Responsively - Develop responsive web-apps 5x faster!

Sizzy - The browser for designers and developers

Polypane - The browser for ambitious web developers that want to 5ร— their quality and efficiency.

Responsive Viewer - View multiple screen dimensions in one view

Responsive Image Breakpoint Generator - Turn one image into the ideal set of per-device images

BrowserStack - BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.

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