Tuta offers encrypted email, calendar, and contacts, with apps that the site says protect personal data using end-to-end encryption.
Tutanota
Tuta is an email service whose repository says it encrypts emails, contacts, and calendar entries across users’ devices.
About Tutanota
Tuta Mail (Tutanota) is an email service focused on security and privacy. According to the repository, it provides built-in end-to-end encryption and lets users encrypt emails, contacts and calendar entries on all their devices. This GitHub project is the open-source codebase for the service's clients, published under the GPL-3.0 license, with builds for Android, iOS, web and desktop. Pricing is not stated in the repository, and no geographic eligibility details are given in the source.
Key features
- End-to-end encryption for emails, contacts and calendar entries
- Client apps for Android, iOS, web and desktop
- Open-source client code released under GPL-3.0
- Public roadmap and Reddit forum for bug reports and feature requests
- Issue and feature tracker hosted on GitHub
- Repository includes separate app-android and app-ios source folders
Best for: People who want an encrypted email service with Android, iOS, web and desktop clients and who value being able to inspect the open-source client code.
Good for
- Encrypts emails, contacts and calendar entries across devices according to the project
- Client source code is open source under GPL-3.0
- Offers web, Android, iOS and desktop clients
Watch out for
- Contribution policy does not accept contributions or bug reports produced with LLM or generative AI assistance
- Maintainers may close issues or delete comments if they suspect AI-generated content
- No pricing information is provided in the repository
Tutanota at a glance
- Website
- github.com/tutao/tutanota
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, iOS
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Tutanota alternatives
Tools and sites you could use instead, ranked by how closely they match.
Share one-time secrets through a browser-based platform that encrypts them with AES before sharing.
Open source
24 alternatives
NordLocker provides encrypted cloud storage and a private file vault for securing, backing up, accessing, and sharing files across devices.
With backup and sync, Stingle Photos offers a gallery and camera app; its page says photos and videos are encrypted before storage.
Available on web, iOS, Android, and desktop, Proton Mail is an encrypted email service that offers free accounts.
FreemiumOpen sourcePick
24 alternatives
The Hemmelig.app project shares encrypted secrets to help keep sensitive information out of chat logs, email, and similar channels.
Popular in Encryption & Private Sharing
Well-known listings from the same topic.
MIT PGP Key Serverpgp.mit.eduPassword Pusherpwpush.comBurn My Noteburnmynote.linkPeergospeergos.orgInternxtinternxt.comOneTimeSecretonetimesecret.com
Tutanota FAQ
Does the project accept AI-assisted contributions or bug reports?
No. The contribution policy states the project does not accept contributions or bug reports produced, in part or in full, with assistance of large language models or generative AI. Maintainers will close issues or delete comments without further explanation if they suspect any part is generated. Incomplete or automatically translated issue reports are still welcomed.
Where should bug reports and feature requests be sent?
The repository points to a Reddit forum at reddit.com/r/tutanota for bug reports and feature requests, and states that feature requests should be submitted via Reddit or via support mail rather than through the GitHub issue tracker.
Which clients are available?
The repository lists a web client, an iOS App Store app and a desktop client, and the source tree includes separate app-android and app-ios folders.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.