Tuta Mail
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.
Why it is included
Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.
Best for
Users exploring vetted FOSS alternatives in this space (mail).
Target users
Developers, teams, and individuals evaluating open tools in this category — refine in CMS for specificity.
Strengths
- ~7,422 GitHub stars (per upstream list)
- Open source
Limitations
- Verify license, platform support, and security posture for your environment.
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