Disclosed in the present specification are various embodiments regarding a digital device and a method for processing services on the digital device. Here, a method for processing an application on a digital device having a Web OS platform according to an embodiment of the present invention comprises the steps of: receiving a load request from a media application located in the foreground; generating a first media pipeline according to the received load request; if a resource assigning request is received from the first media pipeline, assigning the acquisition-requested resource to the first media pipeline; and receiving a playing request from the media application and then outputting the media.