
About BorgBackup
BorgBackup, or Borg, is a backup program that stores each unique chunk of data only once. It also compresses and encrypts backups, and it is free software.
What it does
Borg splits files into chunks and stores identical chunks once, across files and across backup runs. Each backup is encrypted and authenticated, so the backup server only ever holds ciphertext. You can mount an archive with FUSE and browse older versions of your files like any other folder. A backup is a single command, with no daemon or agent to run in the background.
Key features
- Deduplication across files and backup runs
- AES encryption with authentication
- Compression with lz4, zstd, zlib or lzma
- Mount old archives and browse them as folders
Who it's for
System administrators and developers who back up servers, workstations or laptops. It suits anyone who backs up to a local disk, a USB drive or a remote machine reached over SSH.
Pricing and good to know
Borg is free software under the BSD license, and it is developed in the open. The project lists support services and a funding page on its site. You can install it from distribution packages, single-file binaries or pip, and it runs on Linux, macOS and BSD systems.
Highlights
- Deduplication across files and backup runs
- AES encryption with cryptographic authentication
- Choice of lz4, zstd, zlib or lzma compression
- Mount archives and browse old versions












