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Polypane, The browser for ambitious web developers
Polypane is a browser and devtool that helps you build responsive, accessible, and high-quality websites faster.
Test and build websites with all viewports in one place
Polypane is a specialized browser designed for web developers, designers, QA specialists, and marketers who want to streamline their workflow. It allows you to test your websites and web apps across multiple viewports simultaneously, from mobile screens to large monitors, so you can see how your site performs on any device. The tool offers built-in accessibility features, such as color contrast checking, to help you create websites that work well for everyone. You can also inspect and edit your site live on all devices, improving quality assurance and ensuring a seamless user experience. With integrations and developer-focused tools like CSS specificity calculators and social media preview testing, Polypane supports you in building responsive, accessible, and performant websites more efficiently, making it a handy companion for ambitious web developers.
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Cypress helps you write, run, and debug tests for modern web apps, making front-end and browser-based testing fast and easy with visual feedback.
Responsinator lets you quickly preview how your website looks on popular devices, helping you test responsive designs and improve user experience.
Browsersync helps you test websites faster by syncing actions and code changes across devices and browsers. Easily automate and streamline your workflow.
webhint checks your website for best practices, accessibility, speed, and compatibility issues, helping you easily spot and fix common web development errors.
Test your apps and websites on 3000+ real browsers and devices. BrowserStack makes cross-browser and mobile app testing easy, fast, and accessible online.
Ryte helps you analyze and improve your website’s SEO, usability, and performance for better user experience and higher conversion rates.
Build Chrome extensions easily with modern tools. CrxJS offers a streamlined workflow for developers creating browser add-ons using Vite and JavaScript.
Tailscan lets you visually build, design, and debug Tailwind CSS websites right in your browser, making web development faster and easier.
SiteLint audits your website for accessibility, performance, SEO, and quality, helping you find and fix issues for a better, more compliant site.
Inclusive Components shares practical guides for building accessible web interfaces, offering patterns and tips for inclusive design in web development.
Stark offers integrated accessibility tools for design and development teams, helping you build inclusive, compliant digital products with ease.
Siteimprove helps teams optimize website content with tools for SEO, analytics, accessibility, and quality assurance, all in one easy-to-use platform.
Quickly inspect and copy the CSS of any element on a webpage by hovering over it—no need for Inspect Element. Speed up your web design workflow.
Worldwide Polypane.app Alternatives
Test any website’s responsiveness with a simple browser tool. Instantly preview sites at different screen sizes using a handy bookmarklet—no install needed.
Blisk is a web browser built for developers to test and debug websites across multiple devices with features like hot reload, screenshots, and scroll sync.
Selectivizr is a JavaScript tool that brings CSS3 selectors to Internet Explorer 6-8, helping older browsers support modern web design features.
Firebug was a browser tool for inspecting HTML, CSS, and JavaScript, helping web developers debug and build better websites right in the browser.
Easily get and change CSS values on any site using your mouse with this bookmarklet tool, designed to simplify web design tweaks. Japanese language.
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