3 alternatives to Backblaze Personal Backup
Compare free and open-source solutions before building your own. Check each option’s license, setup, and limitations.
Browser-driven encrypted backups to nearly any storage target, with more knobs than charm.
LicenseMIT
PlatformsOn your machine
InstallationSigned Windows/macOS/Linux package or Docker container, then configure backups through its local web UI
DataEach backup target contains encrypted compressed `.dblock` data volumes, `.dindex` indexes, and one `.dlist` manifest per version; a local database accelerates catalog and restore operations.
Limitations compared to Backblaze Personal BackupIt can automate encrypted backups, but you must choose and pay for storage, protect credentials, monitor jobs, and test restores yourself instead of getting Backblaze's managed service.
SetupThe first setup is not just an install: you must supply destination credentials, choose encryption and retention, preserve the passphrase, and understand how to rebuild from remote volumes if the local database is lost.
Facts verified 2026-08-14
Encrypted snapshots to storage you choose; the cloud bill and restore drills are still yours.
LicenseApache-2.0
PlatformsOn your machine
InstallationInstall KopiaUI or the CLI from native Windows/macOS/Linux packages, then create or connect to a repository
DataSnapshots live in an encrypted, deduplicated, content-addressed Kopia repository on local/NAS, SFTP, WebDAV, object storage, rclone, or supported cloud targets; small blocks are packed into opaque blobs.
Limitations compared to Backblaze Personal BackupIts snapshots are excellent, but the storage account, capacity, billing, scheduling, monitoring, and restore drills are all your responsibility rather than Backblaze's.
SetupYou must provision and pay for the storage target, enter its credentials, and safeguard the repository password, Kopia cannot recover data if that password is lost.
Facts verified 2026-08-14
Restic with buttons, schedules, checks, and enough guardrails to avoid living in a terminal.
LicenseGPL-3.0
PlatformsOn your server
InstallationStandalone installer or Homebrew on macOS/Linux, Windows installer, or Docker Compose; it downloads/manages restic on first run
DataBackups are encrypted, content-addressed restic repositories on the chosen local, SFTP, object-storage, or rclone target; Backrest keeps local JSON configuration, cache, and service data.
Limitations compared to Backblaze Personal BackupIt adds a friendly scheduler, but unlike Backblaze it includes no unlimited off-site storage, automatic destination, managed retention, or shipped physical restore.
SetupYou still have to choose and provision storage, protect the repository password, grant filesystem access, and test restores; macOS may require Full Disk Access.
Facts verified 2026-08-14
Updated 2026-08-14 · no paid listings
Nextcloud FilesFile sync is not a tested backup system; deletions and bad changes can follow you.
resticExcellent backup engine; still a terminal, scheduler, and retention policy you must assemble yourself.
| Tool | License | Setup | Platforms | Stars | Activity |
|---|---|---|---|---|---|
| Duplicati | MIT | One-click installation | web, macos, windows, linux | 14,900 | 2026-07 |
| Kopia | Apache-2.0 | One-click installation | macos, windows, linux, cli | 13,800 | 2026-08 |
| Backrest | GPL-3.0 | One-click installation | web, macos, windows, linux | 7,100 | 2026-08 |
People still pay for Backblaze Personal Backup because storage subscriptions sell confidence that files will still exist after a lost device, bad sync, or provider incident. The recurring cost buys chunking, encryption, conflict detection, versions, garbage collection, bandwidth, restore drills, monitoring, billing, and disaster recovery, not just the visible interface. If those points do not matter to you, the options above could save $99 per year.
Is there a free alternative to Backblaze Personal Backup?
Yes: Duplicati, Kopia, Backrest. This page lists 3 free or open-source options. Check the limitations of each.
Should I build my own Backblaze Personal Backup?
Our verdict: Worth subscribing. A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Backblaze Personal Backup, continuously back up a selected computer to user-owned object storage and test restores. The hard boundary is unlimited backup economics, client reliability, restore logistics, support, and durable infrastructure, plus reliability, durability, and cross-device sync. The complete prompt is on the Backblaze Personal Backup page on Vibe Radar.
