End-to-end encrypted cloud storage founded in 2011, owned by Swiss Post, the national postal service of Switzerland. Closed-source clients with multiple independent security audits; available on Windows, Mac, Linux, Android, and iOS.
Reviewed by Gabriel Bachmann
Rate Tresorit: No account needed
Threat level
Covered
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Our take
Tresorit earns its spot on the merit that actually matters: the encryption is real, the audits are credible (Ernst and Young, Computest, ISO/IEC 27001 via TUV Rheinland), and Swiss Post ownership means it operates under Swiss law rather than EU or US jurisdiction. The catch is the price: it is one of the more expensive options in this category and the clients are closed-source, so you are trusting the audit findings rather than inspecting the code yourself. The right pick for users who want a polished, business-grade encrypted cloud with a verifiable audit trail and no DIY setup.
Website at a glance
tresorit.com
A+ score 110
Strong website security headers
Graded by Mozilla HTTP Observatory, tested 3d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Tresorit alternatives
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PrivacyNotes Zero-knowledge notes, tasks, files, passwords and journal secured by a single 12-word recovery phrase, with no email or password required. The crypto core and database schema are published for audit. No subscription model.
MEGA The free plan offers 20 GB storage and a daily 5GB transfer limit. Company is based in New Zealand.
Proton Drive 15 GB storage for 3.99€/mo or 500 GB for 9.99€/mo. Discount for yearly payments. Based in Switzerland.
Filen The free plan offers 10 GB storage and unlimited bandwith. Hosted in Germany.
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