Hold down Shift then click and move your mouse to emulate pinch zooming. Mouse-specific events and CSS effects should not occur. This will react to touch-based JavaScript events such as touchstart, touchmove and touchend. Move your mouse over the device to see a circular “touch” cursor. The dimensions of the emulated screen can be changed when Responsive is selected as the device type. While not quite an iOS or Android emulator, a number of mobile devices running both platforms can be selected as presets. You can now enable the browser emulator by clicking the Toggle device toolbar icon in the top left: Start Chrome, navigate to the web page you want to test and open the Developer Tools (Menu > Tools > Developer Tools, Cmd + Opt + I on macOS or F12 / Ctrl + Shift + I on Windows and Linux). It can help identify early problems without leaving the comfort of your PC and development environment. But how can you test your code on a range of operating systems during development and avoid the pain of managing and switching between multiple devices?įortunately, all modern browsers offer mobile emulation tools, and one of the best can be found in the Chrome browser. Features such as mouse hover won’t necessarily work and your application could be inoperable. If you’re coding on a regular PC with a mouse and keyboard, it’s difficult to appreciate how your interface will operate. The process is complicated further by touch screens, hybrid devices, and high-density displays. In extreme cases, it could take as long as the original development. Your latest masterpiece must be rigorously evaluated on a range of mobile, tablet and desktop devices with differing OSs, screen resolutions, and capabilities. The days of checking functionality in a couple of browsers are long gone. Website testing has become increasingly complex.

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