Duplicacy

Cross-platform cloud backup with client-side encryption

80.5
Score in best backup software

Ranked 9 of 10 in best backup software

Cross-platform cloud backup with client-side encryption and lock-free deduplication, free for individuals on the command line. Commercial use needs a per-machine licence, and setup takes more work than a consumer app.

Best for Individuals who script encrypted cloud backups

About Duplicacy

Duplicacy backs up files to many cloud storage services with client-side encryption and deduplication. The site describes a method it calls Lock-Free Deduplication, which it says makes deleting old backups possible without a centralized chunk database.

Besides cloud storage, Duplicacy supports local disks and your own SFTP servers, including Mac or Linux computers and NAS boxes, and it has a newly designed web-based interface. The command-line version is free for individual users, while commercial licences are priced per machine per year, so check the current price on the buy page before using it at work.

Key features

  • Client-side encryption
  • Lock-free deduplication
  • Many cloud storage targets
  • SFTP and NAS targets
  • Web-based interface

Strengths

  • Client-side encryption and lock-free deduplication
  • Command-line version free for individual users

Limits

  • Commercial use needs a per-machine licence
  • Command-line setup takes more work than a consumer app

Where Duplicacy ranks

How Duplicacy compares

ProductScorePricePlatforms
#6Backblaze84.0SubscriptionWindowsmacOS
#7Time Machine83.0FreemacOS
#8BorgBackup82.5Free and open sourceLinuxmacOSCommand line
#9Duplicacy80.5Free plan, paid upgradesWindowsmacOSLinuxCommand line
#10Duplicati79.5Free plan, paid upgradesWindowsmacOSLinux

The full comparison table for best backup software has all 10 products.

Questions about Duplicacy

Is Duplicacy free?
Duplicacy can be used without paying: Free command-line version for individuals; commercial licences per machine. Check the vendor’s pricing page for current limits.
Is Duplicacy open source?
No. Duplicacy is proprietary software; its source code is not public.
Which platforms does Duplicacy support?
Duplicacy is available on: Windows, macOS, Linux, Command line.
What is Duplicacy best for?
Individuals who script encrypted cloud backups. In our ranking of backup software it is number 9 of 10 with a score of 80.5.
What are the best alternatives to Duplicacy?
The highest-ranked alternatives on listme.name are Arq Backup, Carbon Copy Cloner, Kopia, restic.

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Ranked #9 of 10 backup software on listme.name
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