Version 16 (modified by hickinbottoms, 12 years ago) (diff)

No longer under construction!

Box Backup


Box Backup is an open source, completely automatic, on-line backup system. It has the following key features:

  • All backed up data is stored on the server in files on a filesystem - no tape, archive or other special devices are required.
  • The server is trusted only to make files available when they are required - all data is encrypted and can be decoded only by the original client. This makes it ideal for backing up over an untrusted network (such as the Internet), or where the server is in an uncontrolled environment.
  • A backup daemon runs on systems to be backed up, and copies encrypted data to the server when it notices changes - so backups are continuous and up-to-date (although traditional snapshot backups are possible too).
  • Only changes within files are sent to the server, just like rsync, minimising the bandwidth used between clients and server. This makes it particularly suitable for backing up between distant locations, or over the Internet.
  • It behaves like tape - old file versions and deleted files are available.
  • Old versions of files on the server are stored as changes from the current version, minimising the storage space required on the server. Files are the server are also compressed to minimise their size.
  • Choice of backup behaviour - it can be optimised for document or server backup.
  • It is designed to be easy and cheap to run a server. It has a portable implementation, and optional RAID implemented in userland for reliability without complex server setup or expensive hardware.

Box Backup is distributed under a BSD license. See the license and commentary? for details.

Project Status

Box Backup is stable (see SystemRequirements for the status for paricular platforms), but is not yet feature-complete. All of the facilities to maintain reliable encrypted backups and to allow clients to recover data are, however, already implemented and stable.

Downloads and Installation

See the Installation page for instructions about how to download and install Box Backup for your platform.

Further documentation for server and client administrators are available from the site navigation box to the right.


Support is available from the Box Backup MailingLists, and also via TracTickets that can be raised on this site for any bugs encountered.

Box Backup Community

Box Backup is an open-source project and accepts contributions of both documentation and code.

The source code repository is read-only for public access, with commit access available to core developers. Code contributions from others can, however, be made via the MailingLists.

This wiki, publically editable to anyone who has registered and logged on. To register please use the Register link.

Other Sources of Information

This wiki has taken over from the previous MediaWiki-based wiki that was hosted at All of its contents have been copied here and so you should not need to refer to it any longer. It is currently still available should you need it, however.

The original Box Backup site produced by the software's original author (Ben Summers) is also available at Again, the documentation from that site has been incorporated into this wiki and so it should not be needed except for historical information.

Project Name

The "official" name of the project is Box Backup, which includes a space between the two words.