nullpay.
Back to toolkit
Tuta

Tuta

Open sourceFree

Encrypted email with built-in calendar

Overview

German email provider with end-to-end encryption for emails, contacts, and calendar. Uses its own encryption protocol rather than PGP. Open-source clients on all platforms.

Visit siteSource code

Referenced in

Practices using Tuta

Email Metadata Awareness

Encrypted email and calendar. German jurisdiction. Encrypts subject lines too.

Evaluating Email Providers

German E2EE email. Encrypts subject lines. Post-quantum ready.

Alternatives

Similar tools

Proton Mail
Proton MailOSSFree

End-to-end encrypted email from Switzerland

Posteo
Posteo

Sustainable, privacy-focused email from Germany

mailbox.org
mailbox.org

Full-featured private email with office suite

Disroot
DisrootOSSFree

Community-run email and collaboration tools

Mailfence
MailfenceFree

Encrypted email with digital signatures