J-share is a simple LAN file sharing utility based on Zeroconf/Bonjour/UPnP protocol and Java platform. In order to work appropriately, J-share needs the Java Runtime Environment (JRE) installed and the port 6666 well configured to enable traffic if the host uses a firewall. The advantages of J-share are twofold. First, J-share facilitates finding, sharing and downloading files easily on a LAN without the need of a central server or any special configuration. Second, the fact that J-share is platform independent allows users of different operating systems to share files by avoiding the complex process of configuring Windows Sharing (SMB), Apple File Sharing (AFP), FTP or NFS. J-share is a complete Java project and some of the used libraries are released under the Apache License v2.0. The software supports drag-and drop that eases the file sharing process for users.