LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
HakuNeko - HakuNeko is an all-in-one cross-platform utility that supports you to download manga and anime with various website support.
MyChat - Secure instant messenger for any network
Hitomi Downloader - Desktop application to download images/videos/music/text from Hitomi.la and other sites, and more.
BORGChat - BORGChat is a LAN messaging software program.
HDoujin Downloader - A powerful doujin/manga downloader that supports hundreds of different websites.