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Preview and debug your website’s responsiveness across multiple devices in real-time, all inside one browser tab. Pixefy helps you spot layout issues instantly and fine-tune designs with live editing tools – right as you build. It simplifies responsive testing by letting you preview, debug, and edit across multiple screen sizes in one place – no more switching tabs or resizing windows manually. ✔️ 🟢🟠 Live Responsive Previews – Test across multiple screen sizes side-by-side. Scroll, click, and interact on all screens simultaneously. Match real devices with optional browser bars + native UI spacing. ✔️ 🟠 Custom Screens & Presets – Create and save your own breakpoints, or use popular device resolutions out of the box. ✔️ 🟢 Screen Management – Rearrange, stack (horizontal/vertical), rotate, or zoom screens globally for a flexible workspace. ✔️ 🟢🟠 Inspect & X-Ray – Inspect styles, edit attributes live, and debug layouts with Visual Box Model, grids, and X-Ray overlays. ✔️ 🟢🟠 CSS Debugging Tools – View/edit computed styles, measure distances between elements, compare two elements, and track all changes in the Activity Tab. ✔️ 🟠 Content Editing – Instantly replace text or images, and check word/character counts directly on the page. ✔️ 🟠 Asset Downloads – Extract SVGs, PNGs, and other assets directly from Inspect Tool tabs. ✔️ 🟢 Screenshots & Annotations – Capture full pages, visible areas, or selected regions, then add notes, arrows, and highlights for clear, shareable feedback. ✔️ 🟠 User Agent Switching – Simulate different devices, browsers, or bots to see how your site adapts. ✔️ 🟠 Accessibility Tools – Test AA/AAA contrast ratios, extract all colors, and preview vision impairments with blindness simulations. ✔️ 🟢 Utilities – Live Dimension Widget (viewport width/height), copy any value or asset to clipboard, clear cache & refresh Pixefy. ✔️ 🟠 Themes – Switch between website's light and dark mode instantly. ✔️ 🟠 SEO Overview – Get a quick overview of key on-page SEO elements, including titles, meta descriptions, headings, and other essential page data. ✔️ 🟢 Touch Simulation – Simulate touch interactions to preview how websites behave on touch-based devices.
Mobile View: Test responsive designs fast
Test your responsive designs on multiple devices at once. See your website on multiple devices at once with live updates, even for locally hosted sites. Hot module reloading ensures instant code changes across all devices, while synchronised scrolling and navigation lets you test seamlessly across any website. Perfect for: ----- ✅ Full-Stack & Front-End Developers ✅ UX/UI Designers ✅ Anyone using Polypane/Blisk/Responsively/Sizzy Get started in seconds: ----- ✅ Install Mobile View from the Chrome Web Store. ✅ Click the extension icon to activate it. ✅ Select devices and breakpoints for continuous testing. ✅ Start developing - changes appear instantly! Join the future of responsive design testing and quality assurance. Works with all your favourite frameworks. Try Mobile View today and revolutionise your development process!
Responsive Tester
Test responsive web designs or mobile pages and see if it is mobile friendly Test responsive web designs or mobile pages that detect specific user agents. Test multiple devices at the same time! The Mobile/Responsive Tester extension allows Developers to test their web pages against common mobile, phablet and tablet devices by emulating the user agent and screen resolution. Excellent for testing responsive web designs. Easily switch between portrait and landscape mode and test multiple mobile device's at the same time! To begin using the software, install our extension. Navigate to the webpage you wish to test for different resolution sizes. Click on our software extension icon, and then choose the resolution size.
InTab
edit any website's HTML and CSS visually 👓 Visually edit any website with InTab's No-Code CSS editor 🔍 Hover to inspect CSS - no need to open devtools 📱 Test your website responsiveness in 20+ devices with real-time sync 🏃♀️ Write CSS faster with built-in templates for animations/flexbox/grid layout 👇 1 Click to export auto-generated media quires and global CSS
Website Responsiveness Checker
Optimize your website for all devices with website responsiveness checker Website responsiveness checker is a tool for testing the mobile friendliness of a website on different devices and screen sizes. A website responsiveness checker and mobile simulator extension is a very important tool for simulating the responsiveness of any website with ease. Website Responsiveness Checker is a simple yet powerful tool that allows you to test how your website looks and behaves on different devices and screen sizes. Simply visit any website and watch as it automatically adjusts to different screen sizes, from desktop to tablet to mobile. Our tool is designed to help you identify and fix any issues that may affect the user experience on your website. It can help you improve your website's accessibility, usability, and overall design. With Website Responsiveness Checker, you can save time and effort by ensuring that your website is optimized for all devices. Who Can Use Website Responsiveness Checker? The mobile friendliness checker extension is beneficial for various groups, including: >> Web developers: developers can use the website responsiveness checker to test the responsiveness of their websites and identify any potential issues that may affect the user experience. This tool can save them time and effort in ensuring that their websites are optimized for all devices. >> Website owners: website owners can use this tool to check the responsiveness of their website and ensure that their website looks and behaves as expected on different devices and screen sizes. This can help improve their website's accessibility, usability, and overall design. >> Ui/ux designers: ui/ux designers can use the website responsiveness checker to test their designs and ensure that they are responsive and optimized for different devices. This can help them improve the user experience on their websites. >> Digital marketers: digital marketers can use this tool to check the responsiveness of their client's websites and ensure that they are optimized for different devices. This can help them improve the overall design and user experience of their client's websites. >> Quality assurance teams: quality assurance teams can use this tool to test the responsiveness of websites and identify any issues that may affect the user experience. This can help them improve the quality of their websites and ensure that they are optimized for all devices. 1. What is a website responsiveness checker? Website responsiveness checker is a tool that allows you to test the responsiveness of your website on different devices and screen sizes. It helps you identify any issues that may affect the user experience and improve the website's accessibility, usability, and overall design. How does mobile friendliness checker work? Check the responsiveness of any website with ease. Simply visit the website you want to test and click on the extension icon. Choose the desired screen resolution from the options available, ranging from desktop to tablet and mobile. The tool will then adjust the website accordingly, providing you with an instant preview of how your website appears and operates on different screen sizes What are the benefits of using website responsiveness checker? Website responsiveness checker helps you improve the user experience on your website by identifying and fixing any issues that may affect it. By using this tool, you can save time and effort in ensuring that your website is optimized for all devices, improving its accessibility, usability, and overall design.
