European Cloud Storage Services Compared

The Data Sovereignty Problem

Every file you store in the cloud sits on a physical server somewhere. When that server belongs to a US company — Google, Apple, Microsoft, or Dropbox — your data falls under American legal jurisdiction regardless of where you live or where the server is physically located. The US CLOUD Act explicitly grants American law enforcement the right to compel US companies to hand over data stored anywhere in the world, even if doing so would violate local privacy laws.

For European individuals and businesses, this creates a fundamental conflict. GDPR guarantees EU residents strong data protection rights, but those rights become difficult to enforce when your files are controlled by a company that must also comply with US surveillance law. The Schrems II ruling by the EU Court of Justice confirmed that standard US-EU data transfer mechanisms were inadequate precisely because of this jurisdictional conflict.

European cloud storage providers resolve this tension entirely. When your data is stored by an EU-headquartered company on EU-based servers, GDPR is the governing law — not the CLOUD Act, not FISA Section 702, and not executive orders that can be reversed with a signature.

European Cloud Storage Providers

Nextcloud

Headquarters: Stuttgart, Germany Model: Open-source, self-hosted or managed hosting Encryption: Server-side encryption; E2EE available for specific folders

Nextcloud is not just a cloud storage service — it is an entire collaboration platform. Files, calendars, contacts, video calls, project boards, and office document editing are all built in. The key differentiator is control: you can host Nextcloud on your own server, on a European hosting provider, or use one of Nextcloud’s certified partners.

For organizations that need absolute certainty about where their data lives and who can access it, self-hosted Nextcloud is the definitive answer. No third party ever touches your files because there is no third party involved.

Standout features:

• Full office suite integration (Collabora or OnlyOffice)
• Granular sharing controls with expiration dates and password protection
• LDAP/Active Directory integration for enterprise environments
• Apps ecosystem with hundreds of extensions
• Federation protocol for cross-instance collaboration

See how Nextcloud measures up in our comparison of Nextcloud vs Google Drive.

Tresorit

Headquarters: Zurich, Switzerland (owned by Swiss Post) Model: Fully managed cloud service Encryption: End-to-end encryption on all files by default

Tresorit takes the opposite approach from Nextcloud. Rather than offering self-hosting flexibility, Tresorit provides a polished, zero-knowledge cloud storage experience where every file is encrypted on your device before it leaves. Not even Tresorit employees can read your files.

The acquisition by Swiss Post — Switzerland’s national postal service — gave Tresorit additional financial stability and institutional credibility without compromising its privacy-first architecture. Swiss jurisdiction adds another layer of legal protection.

Standout features:

• Zero-knowledge end-to-end encryption on everything
• Secure file sharing with link expiration, password protection, and download limits
• Email encryption integration for Outlook and Gmail
• Compliance certifications (ISO 27001, SOC 2, HIPAA-ready)
• Up to 10 TB storage on business plans

Our detailed comparison of Tresorit vs Box breaks down the enterprise features.

Filen

Headquarters: Recklinghausen, Germany Model: Fully managed cloud service Encryption: Zero-knowledge end-to-end encryption

Filen is a newer entrant that has quickly gained attention for offering generous storage at aggressive pricing — all with zero-knowledge E2EE as the default. Every file, filename, and folder structure is encrypted on your device before upload. The service is fully open source, with client code available for inspection on GitHub.

Standout features:

• 10 GB free tier with E2EE
• Up to 2 TB on paid plans at competitive pricing
• Open-source clients (desktop, mobile, web)
• Virtual drive integration for seamless file system access
• Note-taking and chat features built in

Explore our analysis of Filen vs iCloud for a direct comparison.

kDrive by Infomaniak

Headquarters: Geneva, Switzerland Model: Fully managed cloud service Encryption: Server-side encryption; Swiss data residency

Infomaniak’s kDrive combines cloud storage with a full online office suite powered by OnlyOffice. The company operates exclusively in Switzerland, running its own data centers powered by renewable energy. Infomaniak has positioned itself as the privacy-respecting, environmentally conscious alternative to the American cloud giants.

Standout features:

• Integrated online office suite (documents, spreadsheets, presentations)
• Real-time collaboration on documents
• Up to 106 TB on team plans
• Swiss data residency with ecological data centers
• Comprehensive versioning and trash recovery

Read our full comparison of kDrive vs Dropbox to see how it competes.

Feature Comparison

Feature	Nextcloud	Tresorit	Filen	kDrive
Jurisdiction	Germany	Switzerland	Germany	Switzerland
E2EE by default	Optional	Yes	Yes	No
Self-hosting	Yes	No	No	No
Open source	Yes	No	Yes	Partial
Office suite	Yes (plugin)	No	No	Yes (built-in)
Free tier	N/A (self-host)	No	10 GB	15 GB
Max storage	Unlimited (self-host)	10 TB	2 TB	106 TB
Business features	Enterprise-grade	Enterprise-grade	Growing	Enterprise-grade

Choosing the Right Provider

The best European cloud storage service depends on your specific needs:

• Maximum control: Nextcloud self-hosted gives you complete sovereignty over your data. You decide the hardware, the location, the access policies, and the encryption. Ideal for organizations with IT teams and strict compliance requirements.
• Maximum encryption simplicity: Tresorit and Filen both offer zero-knowledge E2EE out of the box. Tresorit is the more mature enterprise option; Filen offers better value for individuals and small teams.
• Collaboration-first: kDrive by Infomaniak is the closest European equivalent to Google Workspace for teams that need real-time document collaboration alongside file storage.
• Budget-conscious: Filen’s free tier and competitive paid plans make it accessible for individuals who want E2EE without a premium price tag.

The Bottom Line

There is no longer any technical reason to store your files with a US cloud provider. European cloud storage services in 2026 offer feature parity or outright superiority in encryption, collaboration, compliance, and pricing. Whether you are an individual protecting personal photos and documents or an enterprise managing terabytes of sensitive business data, the European alternatives are mature, reliable, and built on legal frameworks designed to protect your data rather than expose it. Your files deserve a home where the law is on your side.