Is Duplicati or SST better?

Neither clearly leads. Duplicati starts at Free and SST at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Duplicati or SST?

Duplicati starts at Free and SST at Free.

Does Duplicati or SST run on more platforms?

Duplicati runs on Windows, macOS, Linux. SST runs on AWS, Cloudflare, Node.js.

Can I use Duplicati for free?

Both have a free tier, so you can try either at no cost before committing.

What is Duplicati best used for?

Duplicati is most often used for data protection, disaster recovery, business continuity, ransomware protection. Of those, data protection and disaster recovery are not what SST is typically brought in for.

What can Duplicati do that SST cannot?

Duplicati covers AES-256 encryption, Incremental backup, Deduplication, Multiple cloud backends. SST covers Single config file, Resource linking, Local development, Multi-cloud support.

File Storage · head to head

Duplicati vs SST

Duplicati

File Storage

Free open-source backup with encryption

From: Free
Rated: -

Full review Website

SST

Cloud

Build full-stack apps on your own infrastructure

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Duplicati no managed service or commercial support; SST primarily optimized for AWS with Cloudflare support
They diverge on capability: Duplicati covers AES-256 encryption, SST covers Single config file.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Duplicati and SST actually diverge.

Attributes where Duplicati and SST differ
Attribute	Duplicati	SST
Platforms	Windows, macOS, Linux	AWS, Cloudflare, Node.js
Category	File Storage	Cloud
Founded	2008	Unknown

Identical on both: starting price (Free), pricing model (Unknown), 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 Duplicati

AES-256 encryption
Incremental backup
Deduplication
Multiple cloud backends
Compression
Web interface
AWS S3
Azure

Only in SST

Single config file
Resource linking
Local development
Multi-cloud support
Multiple deployment stages
VPC tunneling

What people use each for

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

Duplicati

Data protectionnot SST
Disaster recoverynot SST
Business continuitynot SST
Ransomware protectionnot SST
Compliancenot SST

SST

Deploying Next.js frontends with serverless backendsnot Duplicati
Managing databases and storage alongside application codenot Duplicati
Creating staging environments for feature testingnot Duplicati

Where each one falls short

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

Duplicati

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

SST

Primarily optimized for AWS with Cloudflare support
Learning curve for developers unfamiliar with infrastructure concepts
Limited documentation for some advanced use cases

Pricing, plan by plan

Duplicati

Free

No published plan breakdown. See the Duplicati review.

SST

Free

No published plan breakdown. See the SST review.

Which should you pick?

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

Choose SST if

You need single config file.
You want to start without paying.
You work on AWS, Cloudflare, Node.js.
You also want resource linking.

SST review

Questions people ask

Is Duplicati or SST better?: Neither clearly leads. Duplicati starts at Free and SST at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duplicati or SST?: Duplicati starts at Free and SST at Free.
Does Duplicati or SST run on more platforms?: Duplicati runs on Windows, macOS, Linux. SST runs on AWS, Cloudflare, Node.js.
Can I use Duplicati for free?: Both have a free tier, so you can try either at no cost before committing.
What is Duplicati best used for?: Duplicati is most often used for data protection, disaster recovery, business continuity, ransomware protection. Of those, data protection and disaster recovery are not what SST is typically brought in for.
What can Duplicati do that SST cannot?: Duplicati covers AES-256 encryption, Incremental backup, Deduplication, Multiple cloud backends. SST covers Single config file, Resource linking, Local development, Multi-cloud support.

Answered from the vendors’ own pages

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

SST: Is SST free?

Yes, SST is open source and free. You only pay for cloud resources from AWS and other providers.

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

SST: What cloud providers does SST support?

SST supports over 150 providers through built-in AWS and Cloudflare components, plus Pulumi and Terraform providers.

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

Duplicati vs SST

Duplicati

SST

The short version

Where they differ

What each one covers

Only in Duplicati

Only in SST

What people use each for

Duplicati

SST

Where each one falls short

Duplicati

SST

Pricing, plan by plan

Duplicati

SST

Which should you pick?

Choose Duplicati if

Choose SST if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Duplicati

More on SST

Keep looking

Other head to heads