Andreas (@andreasbovens) joined Opera Software in 2007, and worked first as a QA engineer, then as a web evangelist in Tokyo. Since 2009, he's based in Oslo and leads Opera's Dev Relations and Site Compatibility team. He likes to drink espresso and is developing a passion for bachata.

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Developing Responsive Designs With Opera Mobile Emulator

Back in 2009, when coding version 10 of Opera Mobile, my Opera colleagues decided to tune the Opera Mobile build machine so that it would churn out builds not only for common mobile platforms, but for Windows and Linux as well. Originally intended for quality assurance and testing, these desktop builds proved also to be useful for Web development; being able to use Opera Mobile on a desktop machine took away the need to do all testing on a phone, and the mobile browser window was suddenly only an Alt/Command + Tab away from our text editor — exciting!

Two Opera Mobile instances

So, we decided to iron out the wrinkly bits, added a Mac build channel, and turned it into a publicly available developer tool, called Opera Mobile Emulator. Coming in at a fairly small size, Opera Mobile Emulator can be downloaded for free from Opera’s developer website or from the Mac App Store, and installing it is straightforward. The engine and UI are exactly the same as when you run Opera Mobile on a phone, while desktop-specific hooks, such as the profile selector, keyboard shortcuts and command-line flags, give you a bit of extra debugging power.


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