tutao/tutanota
Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices. observed · 2026-08-28
Health v2 · maintenance only
95/100
- Activity 99
- Release rhythm 87
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 0
- age_days: 4419
- days_rel: 8
- days_push: 7
- n_releases_24m: 510
Adoption not part of the score
7874 stars · 637 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Tuta Mail (formerly Tutanota) is an open-source, end-to-end encrypted email service with integrated encrypted calendar and contacts, available as web, desktop, and mobile apps. It focuses on privacy with zero-knowledge design and post-quantum cryptography.
Use cases
- send end-to-end encrypted emails to anyone
- private email account without tracking or ads
- encrypted calendar and contact sync across devices
- privacy-focused alternative to Gmail
- use custom domain with secure email hosting
- access email offline on mobile and desktop
When to choose
- you need encrypted email and calendar with strong privacy guarantees
- you want a free or paid ad-free email service with apps on all platforms
- you need post-quantum, zero-knowledge encryption for communications
When to avoid
- you need full IMAP/SMTP interoperability with standard email clients
- you require self-hosting of the mail server
- you need large attachment sizes or very high storage on the free tier
Facets
application · maturity active
email cryptography security privacy self-hosted privacy email security cross-platform cross-platform end-to-end-encryption email-client calendar zero-knowledge post-quantum-cryptography email-service web-server android ios desktop javascript
3 sources
- readme: https://github.com/tutao/tutanota · fetched 2026-08-28 · 19f1d51de86f
- homepage: https://tuta.com · fetched 2026-08-29 · 4f3a5f4e45b7
- site_page: https://tuta.com/pricing · fetched 2026-08-29 · 413292b5925a
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| tutao/tutanota | main | 95 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem