Proton was started in 2014 by scientists who met at CERN and shared a vision of an internet that defends freedom and puts people first. Our transparency, open-source software, and rigorous …

Download Proton Mail, Proton Calendar, Proton VPN, and Proton Drive for your device (Android, iOS, Windows, macOS, or Linux).

Proton AG is a Swiss technology company offering privacy -focused online services and software. It is majority owned by the non-profit Proton Foundation. [5]

Sign in to your Proton Account to access all encrypted Proton services such as Proton Mail, Drive, Calendar, and more. Don't have an account? Create one for FREE.

Dec 7, 2025 · Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 x 10^-27 kg, which is 1,836 times the mass of an electron.

Download Proton VPN today and connect up to 10 devices with one subscription. With servers in over 120 countries, Proton VPN lets you unlock a world of content across popular streaming services, …

Dec 19, 2025 · Superior speed and a truly global server network help Proton overtake ExpressVPN

Proton Mail is based in Switzerland and uses advanced encryption to keep your data safe. Apps available for Android, iOS, and desktop devices.

Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

It is owned by the non-profit Proton Foundation through its subsidiary Proton AG, which also operates Proton VPN, Proton Drive, Proton Calendar, Proton Pass and Proton Wallet.