Encrypted email and calendar from Germany
Tuta, formerly Tutanota, is an open-source encrypted email and calendar service based in Germany. It encrypts mailbox contents end to end, including subject lines and contacts, and uses post-quantum cryptography for new accounts. Because it relies on its own encryption, it works through Tuta's apps rather than IMAP clients. A free plan exists, and paid plans add custom domains and more aliases.
- features
- 5
- alternatives
- 7
- platforms
- 6
- Updated
- Oct 12, 2026
Features
Our take
Pros
- Encrypts subjects and contacts, not just message bodies
- Post-quantum cryptography for new accounts
- Open source apps and a free plan, with servers in Germany
Cons
- No IMAP support, so you must use Tuta’s own apps
- Free plan is limited in storage and features
- Fewer integrations and features than mainstream providers
Editorial assessment by the Alternatives.tools team, based on what the product is known for. Not a user review.
Best Tuta alternatives
See all 7 alternatives
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GmailFreemiumGoogle's free email service with smart filtering
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HEYFree trialOpinionated email service from 37signals with a sender screener
4.6(4.3K) · App Store
Zoho MailFreemiumAd-free business email hosting with a free plan
4.6(8K) · App Store
ThunderbirdFreeOpen sourceFree, open-source desktop email client from Mozilla
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