DLNA, or Digital Living Network Alliance, is a set of guidelines that allows devices to share digital media over a home network. It enables various devices, such as smart TVs, computers, and smartphones, to communicate and stream content like videos, music, and photos seamlessly. The main goal of DLNA is to simplify the way users access and enjoy their media across different devices. By adhering to these standards, manufacturers ensure compatibility, making it easier for consumers to connect their devices without complicated setups or configurations.