ZBackup
The facts below are what the maker publishes about ZBackup, checked and dated. Our editors have not written about it yet.
The facts
Each one read from ZBackup's own pages, with the date it was checked.
What it does
- Backup scope
- mixedchecked 20 Sep 2026
- Compression
- It supports LZMA compression by default and optional LZO compression.checked 12 Oct 2026
- Computer backup
- Yeschecked 20 Sep 2026
- Encryption
- It supports AES-128 encryption in CBC mode with PKCS#7 padding.checked 12 Oct 2026
- Immutable repository files
- During backup, it creates new files and does not modify or delete existing repository files.checked 12 Oct 2026
- Input and restore
- It accepts data through standard input and restores backups through standard output.checked 12 Oct 2026
- Input formats
- It accepts virtually any file data, including archives, proprietary formats, and raw disk images.checked 12 Oct 2026
- Input limitation
- For deduplication to work, input data should be uncompressed and unencrypted.checked 12 Oct 2026
- Integrity checks
- It checks backup data with SHA256 when creating and restoring backups, and fails if the restore check does not match.checked 12 Oct 2026
- License
- The project is licensed under GNU GPL version 2 or later, with OpenSSL.checked 12 Oct 2026
- Mobile backup
- Nochecked 20 Sep 2026
- Purpose
- ZBackup is a globally deduplicating backup tool that stores repeated data regions only once.checked 12 Oct 2026
- Ransomware protection
- Nochecked 20 Sep 2026
- Repository behavior
- Repository files are immutable, so backups create new files without modifying existing ones.checked 12 Oct 2026
- Repository memory use
- ZBackup keeps known block hashes in an in-memory table, which can create scalability limits for large repositories.checked 12 Oct 2026
- Restore limitation
- A backup must be fully restored to access a required file; the site says there is no quick file selection option.checked 12 Oct 2026
- Restore modes
- filechecked 20 Sep 2026
- Scalability limit
- The program keeps hashes of known blocks in an in-memory hash table, which may cause scalability problems for very large repositories.checked 12 Oct 2026
- Storage integrations
- It has no built-in network transfer facility; the site says users can copy the repository with rsync or use cloud storage that stores files.checked 12 Oct 2026
- Storage workflow
- ZBackup does not send backups over the network itself; the repository can be copied using rsync or a cloud storage tool.checked 12 Oct 2026
- Support
- The project points users to its Google Groups discussion forum for help.checked 12 Oct 2026
- Supported packages
- The project says it is available for Fedora/EPEL, Debian, Ubuntu, Arch Linux, and FreeBSD.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
Where it runs
- Linux availability
- The site says ZBackup is included in Debian, Ubuntu, and Arch Linux distributions.checked 12 Oct 2026
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- 1
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