Back In Time vs Sanoid
A side-by-side comparison of two self-hosted backup & recovery options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Back In Time | Sanoid |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 83 · Excellent | 69 · Good |
| Category | Backup & Recovery | Backup & Recovery |
| License | GPL-2.0 | GPL-3.0 |
| Language | Python | Perl |
| Setup difficulty | Easy | Hard |
| Min. RAM | 128 MB | 128 MB |
| Deployment | binary | bare-metal |
| GitHub stars | ★ 2,669 | ★ 3,861 |
| First released | 2008 | 2014 |
| Replaces | Time Machine | Time Machine |
What are Back In Time and Sanoid?
Back In Time
Back In Time is a simple backup tool for Linux inspired by Time Machine and rsnapshot. It takes snapshots of specified folders using rsync and hard links to save disk space.
- Time Machine-style snapshots
- Hard-link deduplication
- GUI and command-line modes
Sanoid
Sanoid is a policy-driven snapshot management tool for ZFS filesystems, bundled with Syncoid for snapshot replication. Together they automate ZFS snapshots and offsite backup replication.
- Policy-based ZFS snapshots
- Syncoid replication included
- Automated pruning
Back In Time vs Sanoid: key differences
Back In Time is written in Python, while Sanoid is built with Perl. Licensing differs — GPL-2.0 for Back In Time versus GPL-3.0 for Sanoid. Back In Time is the more established project (first released 2008), while Sanoid arrived in 2014.
Why pick each one
Choose Back In Time if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Active community (2.7k GitHub stars)
- Written in Python
Choose Sanoid if…
- Released under the GPL-3.0 license
- Active community (3.9k GitHub stars)
- Written in Perl
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is Back In Time or Sanoid better?
Neither is universally better. Sanoid has the larger community, while Back In Time is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Back In Time and Sanoid free and open-source?
Yes. Back In Time is licensed under GPL-2.0 and Sanoid under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Back In Time and Sanoid with Docker?
Back In Time: check the project docs for container support. Sanoid: check the project docs for container support.