D-LAN is described as 'A free LAN file sharing software.
The goal is to easily exchange a large amount of data in a local area network environment like a LAN-Party. After you launched D-LAN, you will see all other people and their sharing automatically without special configuration' and is an app in the file sharing category. There are more than 10 alternatives to D-LAN for a variety of platforms, including Mac, Windows, Linux, Android and iPhone apps. The best D-LAN alternative is LocalSend, which is both free and Open Source. Other great apps like D-LAN are Syncthing, Dukto R6, AirDrop and Catch!.