FindAlternative
Back to Duplicacy

Duplicacy vs Duplicati

Side-by-side comparison of features, pricing, ratings, and alternatives.

Compare
Duplicacy
DuplicacyCross-platform backup tool with lock-free deduplication and client-side encryption.
Visit
Duplicati
DuplicatiFree backup software to store encrypted backups online
Visit
Overview
Description

Duplicacy is a cross-platform backup tool from Acrosync LLC that backs up files to a wide range of cloud storage providers, local disks, and SFTP servers. Its core technical differentiator is lock-free deduplication, a chunk-based approach that avoids the centralized locking databases used by many other deduplication backup tools.

Duplicati is a free, open-source backup client that securely stores encrypted, incremental, compressed backups on cloud storage services and remote file servers. It works with standard protocols like FTP, SSH, WebDAV as well as popular services like Microsoft OneDrive, Amazon S3, Google Drive, box.com, Mega, hubiC and many others.

Pricing
Freemium
Free
Category
Backup & Sync
Backup & Sync
Best for
Technical individuals, IT service providers, and small businesses needing flexible encrypted backup
IT Professionals and System Administrators
Specifications
deployment
Desktop App
—
open source
Yes
Yes
api available
No
No
support options
Community forum, email
Community Support, Documentation
key integrations
Amazon S3, Google Drive, Backblaze B2, SFTP, and other cloud storage backends
Microsoft OneDrive, Amazon S3, Google Drive, box.com, Mega, hubiC
github stars
—
14,763
primary language
—
C#
Pros & Cons
Pros
  • Free command-line tool for individual, non-commercial backups
  • Lock-free design avoids common deduplication database corruption issues
  • Supports a very wide range of storage backends
  • Source-available CLI adds transparency
  • Free and open-source
  • Supports a wide range of cloud storage services and remote file servers
  • Encrypts backups to ensure data security and confidentiality
  • Compresses backups to reduce storage space requirements
Cons
  • GUI and commercial use require a paid per-machine license
  • Steeper learning curve than simple consumer backup apps
  • Interface is more utilitarian than modern consumer backup products
  • Steep learning curve for beginners
  • Limited user interface and user experience
  • May require technical expertise for configuration and troubleshooting
Community & Metrics
Upvotes
0
0
User rating
Not enough data
Not enough data

More alternatives & similar tools

Alternatives to Duplicacy

View all →
Kopia
Kopia

Fast and secure backup and versioning for files and directories

Compare
restic
restic

Fast, secure, efficient backup program

Compare
Duplicati
Duplicati

Free backup software to store encrypted backups online

Compare
MSP360 Backup
MSP360 Backup

Cross-platform cloud backup for personal files, servers, and MSP client environments.

Compare

Alternatives to Duplicati

View all →
Kopia
Kopia

Fast and secure backup and versioning for files and directories

Compare
Databasus
Databasus

Open‑source scheduled backups for PostgreSQL, MySQL and MongoDB

Compare
Velero
Velero

Backup and restore Kubernetes resources

Compare
Borg
Borg

Deduplicating backup solution

Compare

The Verdict

AI-generated from listing data

Duplicacy offers stronger deduplication and broader backend support at a freemium cost, while Duplicati is fully free but with a steeper learning curve and fewer advanced dedup features.

Key differences

  • •Deduplication method: Duplicacy uses lock‑free deduplication; Duplicati uses standard incremental backups.
  • •Pricing model: Duplicacy is freemium (paid GUI/commercial license); Duplicati is completely free.
  • •Backend variety: Duplicacy lists SFTP and many cloud providers; Duplicati focuses on major consumer clouds.
  • •User interface: Duplicacy provides a web‑based GUI (paid); Duplicati offers only a basic UI.
  • •Language/implementation: Duplicacy’s CLI is open‑source on GitHub; Duplicati is written in C# with a larger community star count.
DimensionWinner

Pricing & value

Duplicati is fully free; Duplicacy requires paid licenses for GUI/commercial use.

Duplicati

Ease of use / learning curve

Both are technical, but Duplicati’s limited UI makes it harder for beginners than Duplicacy’s paid GUI.

Duplicati

Features & depth

Duplicacy’s lock‑free deduplication and client‑side encryption provide deeper data‑management capabilities.

Duplicacy

Integrations & ecosystem

Duplicacy lists more storage backends (including SFTP) than Duplicati’s consumer‑cloud focus.

Duplicacy

Collaboration

Duplicati’s free open‑source license allows unlimited users; Duplicacy requires per‑machine licenses for commercial use.

Duplicati

Scalability

Lock‑free deduplication reduces database corruption risk, supporting larger, distributed backup sets.

Duplicacy

Support

Both rely on community forums/documentation; Duplicacy adds email contact, Duplicati offers extensive docs.

Tie

Choose Duplicacy if…

Technical admins needing robust deduplication, many storage options, and willing to pay for a GUI.

Choose Duplicati if…

Budget‑focused users who need free, encrypted backups and can work with a CLI‑centric interface.

Common questions

Is there any cost to use either tool for personal backups?

Duplicacy’s command‑line tool is free for personal, non‑commercial use; Duplicati is completely free.

Which product offers stronger deduplication to save storage?

Duplicacy uses lock‑free deduplication, which is specifically highlighted as a key feature; Duplicati relies on incremental backups.

Can I back up to my own SFTP server with both tools?

Yes for Duplicacy (listed as a key integration); Duplicati does not list SFTP among its supported protocols.