Mobile Simulator & Responsive Tester Tools

MobileReady lets you preview the current webpage in realistic phone and tablet frames without repeatedly resizing the browser or opening developer tools. Choose a device preset to review responsive layouts at common screen sizes. Compare breakpoints, inspect spacing, alignment, fonts, colors and other visual details, then capture screenshots for reviews, bug reports or presentations. Built-in alignment guides, screenshot annotations, live style inspection and presentation mode help you identify mobile layout issues and share clear visual feedback. Use MobileReady to check navigation, text sizing, tap targets, image cropping and content alignment before publishing a page. Some tools and additional device presets require a paid plan. Start free. Optional recurring subscriptions: Professional $7.95/month or $59/year; Expert Solo $9.95/month or $95/year; Expert Team $19.95/month or $199/year. These are the current advertised prices; the selected plan, currency and billing period are shown in the extension and Stripe Checkout before you pay. To upgrade, open Plan and settings inside the extension, choose a plan and complete Stripe-hosted Checkout. Your plan refreshes automatically when you return. Manage changes, downgrades and cancellations through the extension’s Manage billing button, which opens Stripe. No website account or manual purchase pairing is required. Restore an existing purchase or join a Team using an emailed verification code. Simulation, inspection and screenshot processing take place locally. Optional product-usage analytics are off until you opt in. Licensing actions use the installation identifier and necessary verification data; user-requested PageSpeed measurement or reports send the selected page URL to Google. See our privacy policy for details. Open the extension from the toolbar, select a device and begin testing the current site. Device frames simulate viewports; they are not physical devices or a replacement for final testing on real mobile browsers.