A digital device and a method of processing data in a digital device are disclosed. The digital device includes a user interface (UI) for receiving a signal for executing an application and a signal for requesting to provide a keyboard during execution of the application, a controller for transmitting a first control command for requesting the external device for keyboard input data, if it is paired with an external device having a high priority related to providing a keyboard more than the digital device, outputting keyboard input data received from the external device in response to the first control command, controlling an operation based on the output keyboard input data, and controlling the keyboard input termination, and an output unit for outputting text data corresponding to an application execution image and text data corresponding to the received keyboard input data.