FTP Synchronizer - Secure and high performance FTP File Sync product
HakuNeko - HakuNeko is an all-in-one cross-platform utility that supports you to download manga and anime with various website support.
FTPSync.pl - FTPSync.pl is a PERL skript to synchronize a local directory tree and a remote FTP directory tree.
Hitomi Downloader - Desktop application to download images/videos/music/text from Hitomi.la and other sites, and more.
FreeFileSync - FreeFileSync is a free open source data backup software that helps you synchronize files and folders on Windows, Linux and macOS.
HDoujin Downloader - A powerful doujin/manga downloader that supports hundreds of different websites.