Tuta
tuta.comTurn ON Privacy — secure emails, calendars & contacts, free forever
Communicationemailprivacyend-to-end-encryptionopen-sourcecalendarpost-quantumgdpr

About
Tuta (formerly Tutanota) is a privacy-first email, calendar, and contacts service that uses end-to-end, quantum-resistant encryption to keep user data private. It is fully open source, ad-free, and powered by renewable energy, with apps available across Android, iOS, Windows, macOS, and Linux. The service is aimed at individuals, businesses, journalists, and activists who want to communicate without surveillance or data exploitation.
Problem
Mainstream email providers scan and monetize user data through targeted advertising and surveillance, eroding digital privacy.
For
Privacy-conscious individuals, businesses, journalists, and activists
How it works
Tuta automatically encrypts all emails, calendars, and contacts end-to-end with quantum-resistant cryptography, storing data on servers in Germany under strict GDPR protections with a zero-knowledge architecture.
Business model
freemium
Status
launched
Company
Tuta
Launched
2011