Proton Mail: Encrypted Email

Encrypted email keeps your conversations private and secure. Proton Mail: Encrypted Email is a privacy-first messaging app trusted by millions worldwide that makes it virtually impossible for anyone to read your messages except the sender and recipient.

Your communications deserve protection. Unlike traditional email providers, Proton Mail uses end-to-end encryption to safeguard every message you send and receive. Messages are encrypted on your device before they ever leave your phone, and our zero-access architecture means even Proton cannot decrypt your emails. This rigorous encryption standard applies to all your attachments and files, ensuring complete confidentiality across every conversation.

Managing your inbox has never been simpler. The redesigned interface lets you organize emails with folders and labels, use intuitive swipe gestures to sort messages, and switch seamlessly between multiple Proton Mail accounts. Dark mode support keeps your eyes comfortable during late-night email sessions, while instant notifications ensure you never miss important messages. Password-protected emails add an extra security layer when sending sensitive information to anyone, whether they use Proton Mail or not.

Security built on transparency. Proton Mail's open-source cryptography has been thoroughly vetted by independent security experts worldwide. The app uses only secure implementations of AES, RSA, and OpenPGP with open-source cryptographic libraries—eliminating the risk of hidden backdoors. This approach guarantees you're using battle-tested encryption, not proprietary black boxes. Strong phishing and spam protection work quietly in the background, blocking threats before they reach your inbox.

Privacy is a right, not a privilege. Proton Mail is completely free to use—we believe everyone deserves encrypted communications without compromise. No ads, no tracking, no data harvesting. If you want additional features and want to support our privacy mission, upgradeable plans are available. Your inbox follows your rules, not algorithmic ones designed to profit from your personal information.

Created by privacy pioneers who met at CERN, Proton Mail has earned recognition from leading publications including Forbes and The Wall Street Journal for its uncompromising approach to secure email. Whether you're protecting sensitive business communications, personal correspondence, or simply reclaiming your digital privacy, Proton Mail: Encrypted Email delivers enterprise-grade security in an app designed for everyday use. Start with a @proton.me or @protonmail.com address and experience email the way it should be—private, simple, and entirely yours.