Syncrify - private cloud backup software using rsync over http

Syncrify is a private cloud backup software allowing multiple machines to backup folders/files to a central repository within your enterprise.

Private cloud backup - Power your private cloud using Syncrify. If you are an enterprise looking for a comprehensive, cost effective data protection platform, consider Syncrify to create a private cloud. Click here for more information.
Access files anywhere, anytime on any device - Easily access your backed up files from any machine or a smart phone.
100% secure - Your files stay in your network and within your control. They are never transferred to any third-party machines.
Incremental backups - Syncrify intelligently figures out the part of file that has been changed making backup jobs run faster with less load on your network.
Folder synchronization - Synchronize one for more folders across multiple machines. When a file is modified on one machine, it is automatically copied to other machines.
Multi-platform - Syncrify can be installed on any operating system including MS Windows, Linux, Mac OSX and UNIX
Backup over the Internet - Backup files from any computer across the Internet
Free - Syncrify is absolutely free for personal use

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You install Syncrify Server on any machine of your choice with plenty of hard-drive space. This machine can be located anywhere on the Internet.
Using your web-browser you, the administrator, create multiple user accounts.
You then install Syncrify Client on a machine that you want to backup. Run this client, decide the files you want to backup and schedule as task to run it.
Individual users can connect to the Syncrify Server using their web browser to view backed files as well as download/restore any file when they need it.