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Backup · head to head

Duplicacy vs Duplicati

Duplicacy logo

Duplicacy

Backup

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite
Duplicati logo

Duplicati

File Storage

Free open-source backup with encryption

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Duplicacy web GUI pricing tier not specified on product page; Duplicati no managed service or commercial support
  • They diverge on capability: Duplicacy covers Lock-free deduplication, Duplicati covers AES-256 encryption.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Duplicacy and Duplicati actually diverge.

Attributes where Duplicacy and Duplicati differ
AttributeDuplicacyDuplicati
Pricing modelfreemiumUnknown
PlatformsmacOS, Linux, WindowsWindows, macOS, Linux
CategoryBackupFile Storage
Founded20162008

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

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 Duplicacy

  • Lock-free deduplication
  • Client-side encryption
  • Multiple computers
  • Erasure coding
  • Variable-size chunking
  • RSA encryption
  • Google Cloud
  • Backblaze B2

Only in Duplicati

  • AES-256 encryption
  • Incremental backup
  • Deduplication
  • Multiple cloud backends
  • Compression
  • Web interface
  • Google Drive
  • SFTP

Both cover

  • AWS S3
  • Azure
  • Dropbox
  • OneDrive
  • Windows support
  • Mac support
  • Linux support
  • Web support

What people use each for

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

Duplicacy

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

Duplicati

  • Data protectionnot Duplicacy
  • Disaster recoverynot Duplicacy
  • Business continuitynot Duplicacy
  • Ransomware protectionnot Duplicacy
  • Compliancenot Duplicacy

Where each one falls short

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

Duplicacy

  • Web GUI pricing tier not specified on product page

Duplicati

  • No managed service or commercial support
  • Relies on community support
  • No enterprise features

Pricing, plan by plan

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

Duplicati

Free

No published plan breakdown. See the Duplicati review.

Which should you pick?

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

Choose Duplicati if

  • You need aes-256 encryption.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want incremental backup.
Duplicati review

Questions people ask

Is Duplicacy or Duplicati better?
Neither clearly leads. Duplicacy starts at Free and Duplicati at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duplicacy or Duplicati?
Duplicacy starts at Free and Duplicati at Free.
Does Duplicacy or Duplicati run on more platforms?
Duplicacy runs on macOS, Linux, Windows. Duplicati runs on Windows, macOS, Linux.
Can I use Duplicacy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Duplicacy best used for?
Duplicacy is most often used for client-side encrypted cloud backups, lock-free deduplication for efficient backup storage, multi-destination backup support. Of those, client-side encrypted cloud backups and lock-free deduplication for efficient backup storage are not what Duplicati is typically brought in for.
What can Duplicacy do that Duplicati cannot?
Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding. Duplicati covers AES-256 encryption, Incremental backup, Deduplication, Multiple cloud backends. Both handle AWS S3, Azure, Dropbox, OneDrive.

Answered from the vendors’ own pages

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
Duplicati: Is Duplicati free?

Yes. Duplicati is completely free and open-source under the LGPL license. There are no premium tiers, trials, or limitations.

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
Duplicati: What does Duplicati support?

Duplicati supports zero-trust, fully encrypted backups to local storage, network drives, and cloud services. It includes deduplication and incremental backups.

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
Duplicati: What are the platforms?

Duplicati runs on Windows, macOS, and Linux. It can back up data to local storage, network drives, or cloud providers.

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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