Our verdict · 8.0/10 Excellent
Unbeatable on price for technical users who can run it themselves. Businesses wanting vendor support and simple recovery should pay for a managed product.
Key takeaways
- Best for: Technical users and IT hobbyists.
- Strongest area: Value for money (9.6/10). Weakest: Support & reliability (6.6/10).
- Price: Free software; console Pro from about $2 / machine / month — free plan available.
- Watch out for: Restores can be slow on large sets.
What is Duplicati?
Duplicati is free, open-source software that makes encrypted, incremental backups to cloud storage and file servers. A newer console adds monitoring, alerts and remote management across machines on low per-machine pricing.
Duplicati is made by Duplicati and is reviewed here as a backup service. It is priced on a freemium basis, and our editorial score is 8.0 out of 10, calculated from six weighted criteria.
Who it’s for — and who should skip it
Choose Duplicati if
- Technical users and IT hobbyists
- Budget backup to B2 or S3
- Linux, Windows and Mac servers
Not for you if
- Non-technical teams
- Businesses needing guaranteed support SLAs
Key features
AES-256 encryption before upload.
Only changed blocks are uploaded.
S3, B2, Azure, Google Drive, SFTP and more.
Monitoring, alerts and remote management.
- Backblaze B2
- Amazon S3
- Microsoft Azure
- Google Drive
- OneDrive
Pros & cons
What we like
- Free and open source
- Strong encryption
- Many storage back ends
- Low-cost monitoring console
Watch out for
- Restores can be slow on large sets
- Community support on free tier
- Setup requires technical skill
Pricing & true cost
| Plan | Indicative price | Notes |
|---|---|---|
| Free | Free | — |
| Pro console | ≈ $2 / device / mo | Billed annually |
| Enterprise | ≈ $3 / device / mo | — |
Pricing watch-out: Console Free monitors up to 2 machines; Enterprise from $3/machine/month with a 10-machine minimum. M365 and Google Workspace backup $0.50/user/month.
True cost at 5, 10 and 25 seats
Cheapest paid plan that fits each team size, from indicative list prices checked November 5, 2026. Excludes tax, add-ons, onboarding fees and promotional discounts.
Contract questions to ask before you sign
- Does the plan auto-renew, and how many days’ notice do you need to cancel?
- Is the advertised price for annual billing? What is the month-to-month price?
- Is the first-year price a promotion? What will renewal cost, and is it capped?
- Is there a minimum number of seats, or a charge for inactive users?
- Are onboarding, implementation or premium-support fees extra?
- How do we export all our data if we leave, and in what format?
General questions for any vendor — not findings about this product. Build a full checklist with our requirements builder.
Indicative USD pricing, last checked November 5, 2026 (source). Vendors change prices and promotions often — always confirm on their website. Model your own numbers with our SaaS TCO calculator.
Score breakdown
| Criterion | Weight | Score | Points | |
|---|---|---|---|---|
| Features & fit | 25% | 7.6 | 1.90 | |
| Ease of use | 15% | 6.8 | 1.00 | |
| Value for money | 15% | 9.6 | 1.40 | |
| Support & reliability | 10% | 6.6 | 0.70 | |
| Security & privacy | 30% | 8.4 | 2.50 | |
| Integrations & ecosystem | 5% | 8.4 | 0.40 | |
| Overall | 100% | Weighted for security products | 8.0 | |
Security & compliance facts
| Item | Status | Question to ask Duplicati |
|---|---|---|
| Multi-factor authenticationStops most account takeovers from reused or phished passwords. | Not verified by us | Can admins enforce MFA for every user, on every plan? |
| Single sign-on (SAML/OIDC)Lets you remove a leaver’s access everywhere from one place. | Not verified by us | Is SSO included on the plan we are buying, or only on enterprise tiers? |
| SOC 2 Type II reportIndependent audit of the vendor’s security controls — often required by larger customers. | Not verified by us | Can we see your current SOC 2 Type II report (under NDA if needed)? |
| ISO/IEC 27001 certificationInternational standard for running an information-security programme. | Not verified by us | Which legal entity and services does your ISO 27001 certificate cover? |
| GDPR data processing agreementNeeded if you handle personal data of people in the EU/UK. | Not verified by us | Do you offer a signed DPA and list your sub-processors? |
| HIPAA business associate agreementRequired before US healthcare businesses store protected health information. | Not verified by us | Will you sign a BAA, and on which plans? |
We have not yet verified these items for Duplicati against a primary source, so we don’t claim them either way. Check Duplicati’s trust or security page and ask for documents in writing.
Before you buy any backup service
Check Duplicati against the same list we use for every backup service — and confirm each point on the plan you intend to buy, not the top tier.
- Automatic, continuous backup
- Version history and retention
- Immutable or ransomware-protected storage
- Simple restore workflow
- Transparent storage pricing
See every ranked option in Backup & Recovery.
Duplicati alternatives
Pick an alternative by what matters to you
- Cheaper
Backblaze≈ $6/mo vs $20/mo at 10 users (cheapest paid plans, indicative) - Easier to useBackblazeEase-of-use score 9.4 vs 6.8
- Stronger on security
Veeam Data PlatformSecurity & privacy score 9.2 vs 8.4 - Higher overall score
Acronis Cyber ProtectOverall 8.5 vs 8.0
Computed from our published scores and indicative pricing for tools in the same category as Duplicati. Scores are editorial; see the methodology.
Editor’s picks
Encrypted, versioned backup for Mac and Windows to your own storage.
Low-cost backup software that sends data to the cloud storage you choose.
Simple, unlimited computer backup and low-cost cloud storage.
Review history
- Scored under methodology v2.0 (six weighted criteria, computed overall score).
Duplicati FAQ
Is Duplicati free?
Yes, the backup software is free and open source; the management console has paid tiers.
Is Duplicati safe for business?
It encrypts data well, but test restores regularly and consider paid support for critical systems.
Does Duplicati have a free plan?
Yes. Duplicati offers a free plan. Paid plans start at Free software; console Pro from about $2 / machine / month (indicative — check the vendor for current pricing).
Who is Duplicati best for?
Duplicati is best for: technical users and IT hobbyists; budget backup to B2 or S3; linux, Windows and Mac servers.
How much does Duplicati cost for a team of 10?
On indicative list prices, the cheapest paid plan that fits 10 users (Pro console) works out at roughly $20 per month, or about $240 per year, before tax, add-ons and discounts.
How is the Duplicati score calculated?
The 8.0/10 overall score is a weighted average of six sub-scores — features & fit, ease of use, value, support & reliability, security & privacy, and integrations — using the published weights for security products. Affiliate relationships have no input. See our methodology page for the full rubric.
What are the best alternatives to Duplicati?
Popular alternatives include Arq Backup, MSP360 Backup, Backblaze. See our comparisons for side-by-side verdicts.