btrbk vs bup
A side-by-side comparison of two self-hosted backup & recovery options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
btrbk
Backup tool for Btrfs subvolume snapshots
VS
bup
Efficient backup system based on the git packfile format
| Feature | btrbk | bup |
|---|---|---|
| Category | Backup & Recovery | Backup & Recovery |
| License | GPL-3.0 | LGPL-2.1 |
| Language | Perl | Python |
| Setup difficulty | Medium | Medium |
| Min. RAM | 64 MB | 128 MB |
| Deployment | bare-metal, binary | binary |
| GitHub stars | ★ 2,125 | ★ 7,337 |
| First released | 2014 | 2010 |
| Replaces | Time Machine | Time Machine |
Why pick each one
Choose btrbk if…
- Released under the GPL-3.0 license
- Active community (2.1k GitHub stars)
- Written in Perl
- Tiny footprint — runs in 64 MB RAM
Choose bup if…
- Released under the LGPL-2.1 license
- Mature project with 7.3k GitHub stars
- Written in Python
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is btrbk or bup better?
Neither is universally better. bup has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are btrbk and bup free and open-source?
Yes. btrbk is licensed under GPL-3.0 and bup under LGPL-2.1. Both can be self-hosted at no software cost.
Can I run btrbk and bup with Docker?
btrbk: check the project docs for container support. bup: check the project docs for container support.