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btrbk

Backup tool for Btrfs subvolume snapshots

Backup & Recovery ★ 2.2k stars Medium setup GPL-3.0

btrbk is a backup tool for creating and managing snapshots of Btrfs subvolumes and replicating them to local or remote targets. It is designed for incremental, atomic backups driven by a simple configuration file.

Official siteSource code

Key features

  • Incremental Btrfs backups
  • Remote replication over SSH
  • Configurable retention
  • Atomic snapshots

Pros & cons

Strengths

  • Released under the GPL-3.0 license
  • Active community (2.2k GitHub stars)
  • Written in Perl
  • Tiny footprint — runs in 64 MB RAM

Trade-offs

  • Btrfs only
  • No graphical interface

Is btrbk secure?

OSV.dev lists 2 published advisories for btrbk. It doesn't publish GitHub releases we can match, so we can't say which of them apply to the current version. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2026-62943, published 2026-09-18 (26 days ago), fixed in 0.32.7

Source: OSV.dev, checked 2026-10-14. How this is measured.

btrbk replaces

Self-hosted Time Machine alternatives

Health badge

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SelfHostIndex: 76 · good

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