* Built-in - Opera Dragonfly is built right into the browser and updates automatically behind the scenes. Launch Opera Dragonfly with Ctrl + Shift + I on Windows and Linux, or ⌘ + ⌥ + I on Mac. Alternatively, you can target a specific element by right-clicking in the page and selecting “Inspect Element”. * Fully loaded - A full suite of tools puts you in control. Step through your code, manipulate the DOM, monitor network traffic, search for what you need, filter away what you don’t, and a whole lot more. Whether you are a developer or a designer, Opera Dragonfly has the tools to keep you covered * Cross-device - Develop for mobile, tablet or TV? Opera Dragonfly has that covered too. Remote debugging allows you to connect to the Opera browser on your device and to start debugging from your PC or Mac. All the features are available, so you don’t need to compromise.

* Fast and lightweight * Semantic markup * Standardized HTML between browsers * Cross browser support including Chrome, Firefox, Safari, and IE 9+ * Full Featured API * Cross Platform * Customizable