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Backup · head to head

Borg Backup vs Duplicacy

Borg Backup logo

Borg Backup

Backup

Deduplicating archiver with compression and encryption

From
Free
Rated
-
Full reviewWebsite
Duplicacy logo

Duplicacy

Backup

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Borg Backup linux, macOS and BSD only; Windows is not a supported platform; Duplicacy web GUI pricing tier not specified on product page
  • They diverge on capability: Borg Backup covers Content-defined chunking, Duplicacy covers Lock-free deduplication.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Borg Backup and Duplicacy actually diverge.

Attributes where Borg Backup and Duplicacy differ
AttributeBorg BackupDuplicacy
Pricing modelfreefreemium
PlatformsLinux, MacmacOS, Linux, Windows
Founded20152016

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Backup).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Borg Backup

  • Content-defined chunking
  • Deduplication
  • Compression
  • Authenticated encryption
  • Pruning
  • Mount archives
  • SSH
  • BorgBase

Only in Duplicacy

  • Lock-free deduplication
  • Client-side encryption
  • Multiple computers
  • Erasure coding
  • Variable-size chunking
  • RSA encryption
  • AWS S3
  • Azure

Both cover

  • Linux support
  • Mac support

What people use each for

The jobs each tool is most often brought in to do.

Borg Backup

  • Deduplicated backups where daily full snapshots would otherwise be expensivenot Duplicacy
  • Encrypted backup to a server you do not fully trust, since the server never sees plaintextnot Duplicacy
  • Browsing previous versions by mounting an archive over FUSEnot Duplicacy
  • Scripted server backups with no agent or daemon to runnot Duplicacy

Duplicacy

  • Client-side encrypted cloud backupsnot Borg Backup
  • Lock-free deduplication for efficient backup storagenot Borg Backup
  • Multi-destination backup supportnot Borg Backup

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Borg Backup

  • Linux, macOS and BSD only; Windows is not a supported platform
  • Command-line only, with no graphical interface in the project itself
  • Version 2.0 is still in beta, so production use means staying on the 1.4 line
  • Restoring requires the Borg tooling, since archives are a deduplicated chunk store rather than plain files

Duplicacy

  • Web GUI pricing tier not specified on product page

Pricing, plan by plan

Borg Backup

Free
  • FreeFree
    • Deduplication
    • Compression
    • Encryption

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

Which should you pick?

Choose Borg Backup if

  • You need content-defined chunking.
  • You want to start without paying.
  • You work on Linux, Mac.
  • You also want deduplication.
Borg Backup review

Choose Duplicacy if

  • You need lock-free deduplication.
  • You want to start without paying.
  • You work on macOS, Linux, Windows.
  • You also want client-side encryption.
Duplicacy review

Questions people ask

Is Borg Backup or Duplicacy better?
Neither clearly leads. Borg Backup starts at Free and Duplicacy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Borg Backup or Duplicacy?
Borg Backup starts at Free and Duplicacy at Free.
Does Borg Backup or Duplicacy run on more platforms?
Borg Backup runs on Linux, Mac. Duplicacy runs on macOS, Linux, Windows.
Can I use Borg Backup for free?
Both have a free tier, so you can try either at no cost before committing.
What is Borg Backup best used for?
Borg Backup is most often used for deduplicated backups where daily full snapshots would otherwise be expensive, encrypted backup to a server you do not fully trust, since the server never sees plaintext, browsing previous versions by mounting an archive over fuse, scripted server backups with no agent or daemon to run. Of those, deduplicated backups where daily full snapshots would otherwise be expensive and encrypted backup to a server you do not fully trust, since the server never sees plaintext are not what Duplicacy is typically brought in for.
What can Borg Backup do that Duplicacy cannot?
Borg Backup covers Content-defined chunking, Deduplication, Compression, Authenticated encryption. Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding. Both handle Linux support, Mac support.

Answered from the vendors’ own pages

Borg Backup: What is the cost of BorgBackup?

BorgBackup is completely free and open source under the BSD license with no mandatory costs for the core software.

Source
Duplicacy: What is the cost of the Duplicacy command line version for commercial use?

The commercial license for Duplicacy's command line version costs $50 per machine per year. The CLI version is free for individual users.

Source
Borg Backup: Are there paid services available for BorgBackup?

Yes, optional third-party services are available: BorgBase for specialized Borg repository hosting, Hetzner Storage Box with Borg support, and rsync.net cloud storage integration.

Source
Duplicacy: Is pricing available for the Duplicacy Web GUI edition?

No pricing information is provided for the Web Edition (GUI) on the Duplicacy website. You would need to contact [email protected] for Web Edition pricing details.

Source
Borg Backup: How can I support the BorgBackup project?

BorgBackup accepts voluntary contributions through Open Collective, GitHub Sponsors, Liberapay, and PayPal, though donations are optional.

Source
Duplicacy: Are volume discounts available for IT service providers?

Yes, volume discounts are available for IT service providers and resellers. Contact [email protected] to discuss volume pricing options.

Source
Duplicacy: What backup modes and features are included in the free version?

The free version includes file, disk, partition, and system backup with full, incremental, and differential backup modes. It also offers scheduled backups, encryption, and emergency disk creation.

Source
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