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Backup · head to head

Duplicacy vs Restic

Duplicacy logo

Duplicacy

Backup

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite
Restic logo

Restic

Backup

Fast, secure, and efficient backup program

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Duplicacy web GUI pricing tier not specified on product page; Restic cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag
  • They diverge on capability: Duplicacy covers Lock-free deduplication, Restic covers Content-defined chunking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Duplicacy and Restic actually diverge.

Attributes where Duplicacy and Restic differ
AttributeDuplicacyRestic
Pricing modelfreemiumfree
PlatformsmacOS, Linux, WindowsWindows, Mac, Linux
Founded20162014

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 Duplicacy

  • Lock-free deduplication
  • Client-side encryption
  • Multiple computers
  • Erasure coding
  • Variable-size chunking
  • RSA encryption
  • Dropbox
  • OneDrive

Only in Restic

  • Content-defined chunking
  • Cryptographic verification
  • Deduplication
  • Encryption
  • Multiple backends
  • Snapshot management
  • SFTP
  • REST server

Both cover

  • AWS S3
  • Azure
  • Google Cloud
  • Backblaze B2
  • Windows support
  • Mac support
  • Linux support

What people use each for

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

Duplicacy

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

Restic

  • Encrypted deduplicated backups to S3, B2, SFTP and local disk from the command linenot Duplicacy
  • Scripted server backups with snapshot retention policiesnot 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

Restic

  • Cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag
  • A Windows file whose name contains a character Windows treats as invalid cannot be read by restic and has to be renamed
  • Antivirus real-time protection degrades performance on Windows unless the restic binary is added to an exclusions list
  • On large repositories the built-in five minute stuck-request timeout fires during file listing and has to be raised manually with --stuck-request-timeout

Pricing, plan by plan

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

Restic

Free
  • FreeFree
    • Content-defined chunking
    • Encryption
    • Multiple backends

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 Restic if

  • You need content-defined chunking.
  • You want to start without paying.
  • You work on Windows, Mac, Linux.
  • You also want cryptographic verification.
Restic review

Questions people ask

Is Duplicacy or Restic better?
Neither clearly leads. Duplicacy starts at Free and Restic at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duplicacy or Restic?
Duplicacy starts at Free and Restic at Free.
Does Duplicacy or Restic run on more platforms?
Duplicacy runs on macOS, Linux, Windows. Restic runs on Windows, Mac, 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 Restic is typically brought in for.
What can Duplicacy do that Restic cannot?
Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding. Restic covers Content-defined chunking, Cryptographic verification, Deduplication, Encryption. Both handle AWS S3, Azure, Google Cloud, Backblaze B2.

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
Restic: How much does restic cost?

Restic is entirely free to use and completely open source. There are no subscription tiers, paid plans, or licensing costs.

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
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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