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Duplicacy vs TrueNAS

Duplicacy logo

Duplicacy

Software

Lock-free deduplication cloud backup

From
Free
Rated
-
Full reviewWebsite
TrueNAS logo

TrueNAS

Software

Open-source ZFS storage operating system for network-attached storage

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Duplicacy web GUI pricing tier not specified on product page; TrueNAS requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure

Where they differ

Only the attributes on which Duplicacy and TrueNAS actually diverge.

Attributes where Duplicacy and TrueNAS differ
AttributeDuplicacyTrueNAS
Pricing modelfreemiumopen-source
PlatformsmacOS, Linux, WindowsSelf-hosted, Linux, Web, API
Founded2016Unknown

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

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
  • AWS S3
  • Azure

Only in TrueNAS

Nothing recorded that Duplicacy does not also cover.

What people use each for

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

Duplicacy

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

TrueNAS

  • On-premises backup and archival storage for enterprisesnot Duplicacy
  • Home lab and small business network-attached storagenot Duplicacy
  • Media server storage for video, photo, and document librariesnot Duplicacy
  • Disaster recovery and business continuity replicationnot Duplicacy
  • S3-compatible object storage for cloud-native applicationsnot Duplicacy
  • High-availability storage clusters for datacentresnot 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

TrueNAS

  • Requires self-hosting on x86 hardware, no managed cloud offering; organisations must provision, configure, and maintain their own infrastructure
  • ZFS filesystem entails high memory requirements (1 GB RAM per 1 TB of storage recommended), increasing costs for large deployments
  • Limited ARM/embedded support; Community Edition is primarily x86-64, reducing deployment options for edge installations
  • Clustering and replication setup requires operational expertise; misconfiguration can lead to data loss
  • Enterprise support and SLA guarantees require paid subscriptions; Community Edition relies on peer-based forums

Pricing, plan by plan

Duplicacy

Free

No published plan breakdown. See the Duplicacy review.

TrueNAS

Free

No published plan breakdown. See the TrueNAS 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 TrueNAS if

  • You want to start without paying.
  • You work on Self-hosted, Linux, Web, API.
TrueNAS review

Questions people ask

Is Duplicacy or TrueNAS better?
Neither clearly leads. Duplicacy starts at Free and TrueNAS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duplicacy or TrueNAS?
Duplicacy starts at Free and TrueNAS at Free.
Does Duplicacy or TrueNAS run on more platforms?
Duplicacy runs on macOS, Linux, Windows. TrueNAS runs on Self-hosted, Linux, Web, API.
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 TrueNAS is typically brought in for.
What can Duplicacy do that TrueNAS cannot?
Duplicacy covers Lock-free deduplication, Client-side encryption, Multiple computers, Erasure coding.

Answered from the vendors’ own pages

TrueNAS: What is the cost of TrueNAS Community Edition?

TrueNAS Community Edition is free and open-source. There are no licensing fees, but organisations must purchase and maintain their own x86 hardware. Enterprise Edition requires paid support contracts for production environments.

Source
TrueNAS: Can I replicate TrueNAS data between sites?

Yes. TrueNAS supports snapshot-based replication over network links, enabling disaster recovery and business continuity. Replication can occur between Community Edition systems or between Enterprise Appliances.

Source
TrueNAS: What storage protocols does TrueNAS support?

TrueNAS simultaneously supports NFS (network file system), SMB (Windows file sharing), iSCSI (block storage), and S3-compatible object storage, all from the same storage pool.

Source
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