BackupPC vs ZnapZend
A side-by-side comparison of two self-hosted backup & recovery options — licensing, setup difficulty, resource needs, and what each one replaces.
BackupPC
High-performance backup system for PCs and servers
VS
ZnapZend
ZFS-centric backup tool with mbuffer and ssh support
| Feature | BackupPC | ZnapZend |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 57 · Fair | 76 · Good |
| Category | Backup & Recovery | Backup & Recovery |
| License | GPL-3.0 | GPL-3.0 |
| Language | Perl | Perl |
| Setup difficulty | Hard | Hard |
| Min. RAM | 512 MB | 128 MB |
| Deployment | bare-metal, docker | bare-metal |
| GitHub stars | ★ 1,626 | ★ 669 |
| First released | 2001 | 2014 |
| Replaces | CrashPlan, Time Machine | Time Machine |
What are BackupPC and ZnapZend?
BackupPC
BackupPC is a high-performance system for backing up Linux, Windows, and macOS PCs to a server's disk. It uses pooling and compression to minimize disk usage, with a full web interface.
- File pooling deduplication
- Web management interface
- No client software required
ZnapZend
ZnapZend is a ZFS backup tool that automates the creation, retention, and replication of ZFS snapshots. It runs as a daemon and supports compressed transfers over SSH.
- Automated ZFS snapshot retention
- SSH replication
- Runs as a background daemon
BackupPC vs ZnapZend: key differences
Both projects are written in Perl. ZnapZend is the lighter option, starting around 128 MB of RAM against 512 MB for BackupPC. BackupPC is the more established project (first released 2001), while ZnapZend arrived in 2014. BackupPC has the considerably larger community, at 1,626 GitHub stars versus 669. BackupPC lists first-class Docker deployment; ZnapZend does not.
Why pick each one
Choose BackupPC if…
- Released under the GPL-3.0 license
- First-class Docker support for quick deployment
- Active community (1.6k GitHub stars)
- Written in Perl
Choose ZnapZend if…
- Released under the GPL-3.0 license
- Written in Perl
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is BackupPC or ZnapZend better?
Neither is universally better. BackupPC has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are BackupPC and ZnapZend free and open-source?
Yes. BackupPC is licensed under GPL-3.0 and ZnapZend under GPL-3.0. Both can be self-hosted at no software cost.
Can I run BackupPC and ZnapZend with Docker?
BackupPC: yes. ZnapZend: check the project docs for container support.
Which is lighter on resources, BackupPC or ZnapZend?
ZnapZend has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for BackupPC. Real-world usage depends on library size, user count, and enabled features.