Best Home Server Backup Software 2026: Proxmox Backup Server, Veeam, Duplicati, restic (Complete Comparison)

Disclosure: hardware affiliate links below. Software links are all free/open-source (nothing to disclose there).

The four backup software categories worth knowing

1. Full VM image backup — captures your entire Proxmox / TrueNAS / Unraid VM as a bootable image. Best for restoring quickly.
2. File-level backup — picks up individual files from a filesystem. Best for granular recovery (“I deleted this photo”).
3. Native NAS backup — built into Synology, UGREEN, or TrueNAS. Best for backing up the NAS itself to another target.
4. Application-aware backup — understands databases, mailboxes, and running services and captures them consistently. Mostly enterprise; a couple of tools work for home lab.

A proper 3-2-1 backup strategy uses at least two of these. Combining file-level (for daily granular restore) with full VM image (for disaster recovery) is the standard home lab approach.

Category 1: Full VM image backup

Proxmox Backup Server (PBS) — the home lab default

Free, open source, and purpose-built by the Proxmox team to work with Proxmox VE. Runs on any Debian-based install (bare metal or as a VM on separate hardware). Deduplicated incremental backups over the network, encrypted at rest, and restoration takes minutes.

Why it wins: incremental deduplication means backing up 10 VMs of 40 GB each takes maybe 60 GB of total storage after the first week. Verification and prune jobs run automatically. GUI is straightforward.

The catch: you should run PBS on separate hardware from your Proxmox host. Ideally a second mini PC or a small NAS with a dedicated M.2 SSD for the datastore.

Hardware picks for a Proxmox Backup Server host:

• Beelink EQ13 N100 (ideal PBS host)
• GMKtec G3 Plus (alternative)
• Samsung 990 EVO Plus 2TB (datastore drive)

For host hardware guidance see our related guides:

• Best Mini PCs for Proxmox 2026
• Best M.2 NVMe SSD for Home Lab 2026

Veeam Community Edition (for ESXi / Hyper-V / Windows)

Veeam is the enterprise backup gold standard, and the Community Edition is free for up to 10 protected workloads — more than enough for most home labs. If you run VMware ESXi (still common in home labs even in 2026) or Hyper-V, Veeam is the correct choice.

What you get: image-level backups, application-aware processing for SQL Server and Exchange, instant VM recovery (boot the VM directly from the backup for restore validation), and a very polished GUI.

The catch: no support for Proxmox until Proxmox releases official ESXi-compatible APIs, which is still not the case in 2026.

Category 2: File-level backup

restic — the cli power user’s pick

restic is a command-line file backup tool with encryption, deduplication, and support for every backup destination that matters (local disk, SFTP, S3-compatible object stores, Backblaze B2, Azure, Google Cloud, and more). It is a single binary, has no daemon, and is one of the most reliable pieces of software in the entire home lab space.

Why it wins for daily driver use: restic backup /home/alex to Backblaze B2 in a cron job, done. Encrypts client-side. Deduplicates across every version. Restores individual files fast.

The catch: pure CLI. No GUI. If you are not comfortable with cron and shell scripts, use Duplicati or Kopia instead.

Duplicati — the cross-platform GUI pick

Duplicati is a Windows / macOS / Linux desktop backup tool with a browser-based UI and destination support for the same set of cloud storage backends as restic. It encrypts client-side, deduplicates, and does incremental backups. If you want to back up your Windows desktop AND your Mac AND your Ubuntu box to the same Backblaze B2 bucket without touching a terminal, Duplicati is the answer.

The catch: there have been intermittent data-integrity issues reported over the years, though they are far rarer in the 2.x series. Test your restore before you rely on it.

Kopia — the modern challenger

Kopia is a newer entry (2020) that borrows the best of restic and Duplicati: fast, deduplicating, encrypted, with both a CLI and a good web UI. Growing rapidly in the home lab space. Worth considering as an alternative to Duplicati if you find the Duplicati UI dated.

BorgBackup — the veteran

Borg is older than restic and still excellent. Slightly better performance on huge repositories, slightly less friendly to cloud object storage. If you already know Borg, keep using it. If you are starting fresh, restic and Kopia are easier to get right.

Category 3: Native NAS backup

Synology Hyper Backup — if you have a Synology

The best native NAS backup tool on the market. Runs on your DSM box, backs up shares, packages, and configs to a separate destination (local USB drive, second Synology, C2 cloud, or S3-compatible). Automatic scheduling, retention policies, integrity checks, encryption.

UGREEN Cloud Sync — the newer entrant

UGREEN’s NASync product line comes with Cloud Sync, a Hyper Backup-alike that connects to Backblaze B2, Wasabi, or S3. Less mature than Hyper Backup but functional. See our UGREEN NAS guide.

TrueNAS Replication (Snapshot Replication)

TrueNAS’s native replication uses ZFS snapshots and syncs them to another TrueNAS host or a compatible ZFS target. Extremely reliable and incremental — the second and subsequent snapshots only send changed blocks. If both source and destination are TrueNAS, this is the fastest backup option.

Unraid backup plugins

Unraid uses community plugins for backup. LuckyBackup, ApplData Backup, and the built-in Unraid Community Applications catalog cover the common cases. Less polished than Synology’s Hyper Backup but effective.

Category 4: Application-aware backup for home lab

Enterprise territory that occasionally makes sense for home lab:

• PostgreSQL WAL archiving — if you run Immich, Nextcloud, or Home Assistant with a Postgres backend, WAL archiving with a tool like pgbackrest lets you do point-in-time restore of the database. Overkill for photo storage; life-saving for a home ledger or notes system.
• Home Assistant Google Drive Backup add-on — the officially blessed way to snapshot HA config nightly. Free, takes 60 seconds to set up. Should be running on every HA install. See our Home Assistant hardware guide.

Cloud storage backends: where the off-site copy lives

Your 3-2-1 strategy needs an off-site copy. The four legitimate cheap object storage backends in 2026:

Backblaze B2 is the safe default for most home labs. Wasabi and Storj are legitimate alternatives at similar or slightly better pricing.

The one number that matters more than the software choice: RTO

RTO = Recovery Time Objective. How long can you afford to have that VM, that NAS, that database be unavailable while you restore it?

• RTO under 5 minutes: Proxmox Backup Server with local storage + Veeam Instant Recovery. VM boots directly from the backup while a full restore runs in the background.
• RTO under 1 hour: PBS or Veeam over local network, restoring to fresh Proxmox / ESXi host.
• RTO under 24 hours: cloud restore from Backblaze B2 or Wasabi. Usually gigabit-limited by home internet.
• RTO under 1 week: any solution. Restore from a physical disk you keep off-site with a friend or in a safe deposit box.

Set your RTO before you pick software. If you cannot tolerate 24 hours of downtime for your Home Assistant install, you need local backup, not just cloud.

Actually testing your backups

The single most-neglected practice in home labs. Every quarter (or after any major change), do the following:

1. Pick a random VM or share.
2. Restore it to a test location.
3. Verify the restore is actually usable — log in, open a file, run a query.
4. Delete the test copy.

This is boring, it takes 30-60 minutes quarterly, and it is the single best predictor of whether your backup will actually save you when the day comes.

Hardware you need to make this work

A backup strategy needs a target. Practical picks:

• Small home lab: mini PC running PBS + a 4TB external USB drive plugged into it. $200-400 total.
• Medium home lab: dedicated 4-bay NAS as PBS target, backup runs nightly, cloud sync weekly. $500-1000 including drives.
• Large home lab: separate PBS host on a mini PC with 2-4 TB NVMe locally, PLUS a separate NAS holding the second local copy, PLUS Backblaze B2 for cloud copy. $1000+.

• WD Elements 8TB external (backup target)
• Seagate Expansion 8TB external
• Beelink EQ13 (mini PC for PBS)
• UGREEN NASync DXP2800 (2-bay NAS target)

Related HomeNode guides

• The Home Lab 3-2-1 Backup Strategy 2026: Complete Guide + Gear Picks
• Best NAS Hard Drives 2026
• Best Mini PCs for Proxmox 2026
• Best M.2 NVMe SSD for Home Lab 2026
• Best Home Assistant Hardware 2026

Bottom line

Running Proxmox: Proxmox Backup Server on a dedicated mini PC + restic to Backblaze B2 for off-site. Total setup: 2 hours. Total ongoing cost: $5-15/month.

Running Synology or UGREEN NAS as primary storage: Hyper Backup or equivalent to a second location + Duplicati or Kopia to cloud for off-site.

Running Windows or macOS desktops in a mixed environment: Kopia or Duplicati on each machine, all reporting to the same Backblaze B2 bucket.

Whatever you pick: test a restore this quarter. If you cannot restore, you do not have a backup.

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