FTP Synchronizer is a high-performance and user-friendly FTP file synchronization software specially designed for website owners. It allows user to quickly and reliably synchronize files/folders between multiple local computers and remote FTP servers, and is able to automatically recognize the file changes and update/delete the corresponding files. As a result, it saves the trouble of manually synchronizing files, and saves the users a lot of time and energy spent on this.

BackUp Maker is a very good data, file multi-threading (so it's very fast) backup software from Germany, which is neglected or overlooked but professional and user-friendly. More than anything, it's totally free for both private and educational purposes.