Non-EU vendorPersonal Backup & SyncHeadquarters: CA

Tarsnap: sovereignty score and 8 European alternatives

Tarsnap is an encrypted online backup service for Unix-like systems such as Linux, FreeBSD and macOS. Backups are made with a command-line client that deduplicates and encrypts data with keys that only the user holds; the encrypted archives are then sent to the service. It is run by Tarsnap Backup Inc., which stores the archives on Amazon S3, with the server running on Amazon EC2.

Tarsnap Backup Inc. was incorporated in British Columbia, Canada, in 2011, and the service was created by its founder. Canada lies outside the EU and the EEA. The public pages do not name the AWS region where data is stored and do not mention a GDPR data processing agreement. The client code is available, but it is not distributed under an open-source licence. European organisations should weigh the AWS infrastructure, whose region is not named, against the benefit of encryption on the client side.

See the 8 European alternatives ↓Assess your stack with Tarsnap pre-selected

Mastodon LinkedIn Bluesky X Email

Sovereignty score

32 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-250
Headquartered outside the EU (CA)
Data residency SOV-30
No hosting in Europe (OTHER)
Cryptographic key sovereignty SOV-340
Key management with a non-European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-630
Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 11, 2026

Headquarters	CA (OTHER)Verified by hand
EU adequacy decision	Yes — found adequate by the European CommissionVerified by hand
Sovereignty model	Vendor-hosted (non-EU)Verified by hand
Data hosting	OTHERVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	Personal Backup & Sync
Type	Product
Website	tarsnap.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Tarsnap

The European alternatives to Tarsnap come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

19 European Personal Backup & Sync vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Tarsnap one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with Tarsnap

Tarsnap is headquartered in CA, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor.

Tarsnap hosts data outside the EU (OTHER). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Tarsnap is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Tarsnap together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Tarsnap?

It depends on your use case. Strong EU alternatives to Tarsnap include Acronis True Image, Ashampoo Backup and Backup4all. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Tarsnap?

Yes. Open-source EU alternatives to Tarsnap include BorgBackup, Cryptomator and FreeFileSync. These keep your data fully under your own control and let you self-host if you want to.

Is Tarsnap GDPR-compliant and where is the data hosted?

Tarsnap is headquartered in CA (OTHER) and hosts data in OTHER. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 11, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in Personal Backup & Sync

Personal Backup & Sync: Personal backup tools, file synchronisation and data recovery. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

See all →

Open in the alternatives dashboard Missing a vendor? Submit it Are you this vendor? You can also become a sponsor on the Personal Backup & Sync page — with no effect on your score