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Tuta

Secure email with seamless end-to-end encryption across devices

Tuta Mail provides encrypted email, contacts, and calendar syncing on web, desktop, and mobile, ensuring privacy-first communication with built-in end-to-end encryption for every user.

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Overview

Highlights

End-to-end encryption for email, contacts, and calendar
Cross‑platform clients: web, desktop, and iOS
Open‑source code released under GPL‑3.0
Privacy‑first design with no advertising or tracking

Pros

  • Strong built‑in encryption protects data at rest and in transit
  • Consistent user experience across all major platforms
  • Transparent development encourages community audits
  • No data mining or targeted advertising

Considerations

  • Requires internet connectivity for synchronization
  • Limited integration with external IMAP/SMTP accounts
  • Feature set may lag behind mainstream commercial email suites
  • Learning curve for users new to encrypted email workflows

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Fit guide

Great for

  • Individuals seeking privacy‑first email communication
  • Small teams needing encrypted messaging and calendar sharing
  • Developers interested in contributing to a secure email client
  • Organizations avoiding advertising‑driven email services

Not ideal when

  • Users reliant on legacy IMAP/SMTP integrations
  • Enterprises requiring extensive admin dashboards and compliance reporting
  • Environments with strict offline‑only requirements
  • Users preferring a fully managed proprietary email suite with many third‑party add‑ons

How teams use it

Secure personal correspondence

All personal emails are encrypted end‑to‑end, protecting them from interception.

Encrypted team scheduling

Calendar entries shared within the team remain confidential and synchronized across devices.

Open‑source contribution

Developers can build, extend, and submit improvements to the client via GitHub.

Privacy‑compliant client communication

Businesses can communicate with clients without exposing data to advertising networks.

Tech snapshot

TypeScript55%
C33%
Rust5%
JavaScript3%
Kotlin2%
Swift2%

Tags

encryptionemailprivacymithriljavascriptsecuritytutanota

Frequently asked questions

How does Tuta Mail ensure my emails are private?

Messages are encrypted on the sender’s device and can only be decrypted by the recipient, providing end‑to‑end confidentiality.

Which platforms are supported?

Official clients are available for web browsers, native desktop applications, and iOS mobile devices.

Is the source code freely available?

Yes, the project is open source under the GPL‑3.0 license and hosted on GitHub.

Can I self‑host the service?

The repository provides client code; self‑hosting the full email service is not part of the open‑source offering.

How can I report bugs or request features?

Use the Reddit community r/tutanota or the GitHub issue tracker for bug reports and feature requests.

Project at a glance

Active
Stars
7,213
Watchers
7,213
Forks
598
LicenseGPL-3.0
Repo age11 years old
Last commityesterday
Primary languageTypeScript

Last synced 12 hours ago