End-to-end encrypted messaging that protects your business communications. No more phishing in your mailbox. Open-source, transparent, and built for trust.
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Military-grade encryption ensures your messages stay private. Only you and your recipient can read them.
Built-in protection against phishing attacks. Your secure mailbox that you can trust.
Designed for secure company communications. Scale from small teams to enterprise.
Intuitive interface that doesn't compromise on security. Easy to use, hard to hack.
Works seamlessly across all your devices. iOS, Android, Web, and Desktop.
Transparent code you can trust. Audited by security experts worldwide.
Our code is open for everyone to see, audit, and improve. We believe transparency is the foundation of security. Join thousands of developers who trust Fidelius.
View on GitHubFidelius: Your messages are encrypted on your device before sending. Only the recipient can decrypt them.
Email: Often sent in plain text or with weak server-side encryption that can be intercepted.
Fidelius: Built-in verification prevents spoofed identities and malicious links.
Email: Vulnerable to phishing attacks, fake senders, and malicious attachments.
Fidelius: We can't read your messages - even we don't have access to your data.
Email: Providers often scan emails for ads, analytics, and other commercial purposes.
Fidelius: Each message uses unique encryption keys that are automatically deleted.
Email: Compromised keys can expose all past and future communications.
Fidelius: Real-time encrypted messaging with delivery confirmations.
Email: Delays, unreliable delivery, and no guaranteed encryption in transit.
Fidelius: Built-in compliance tools for GDPR, HIPAA, and enterprise security standards.
Email: Requires complex additional tools and configurations for compliance.
Bitcoin enthusiast and privacy advocate passionate about building secure communication tools for everyone.
Fidelius was born from the belief that privacy should be the default, not a luxury. In a world where our digital communications are constantly monitored and exploited, we deserve better tools to protect our conversations.