Secure email that protects your privacy

by Proton AG

Internet & CommunicationFree software· GPL-3.0-onlyRecently updated on Flathub4+
Arch Linux (recommended)

Screenshots & videos

About

Keep your conversations private. Proton Mail is encrypted email from Switzerland. Used by millions worldwide, our all-new email app protects your communications and has everything you need to easily manage your inbox. The Wall Street Journal says: "Proton Mail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient." With the all-new Proton Mail app, you can: Why use Proton Mail? Industry Leading Security Features Messages are stored on Proton Mail servers using end-to-end encryption at all times and are transmitted securely between Proton servers and user devices. This largely eliminates the risk of message interception. Zero Access to Your Email Content Proton Mail's zero access architecture means that your data is encrypted in a way that makes it inaccessible to us. Data is encrypted on the client side using an encryption key that Proton does not have access to. This means we don't have the technical ability to decrypt your messages. Open-Source Cryptography Proton Mail's open-source software has been thoroughly vetted by security experts from around the world to ensure the highest levels of protection. Proton Mail only uses secure implementations of AES, RSA, along with OpenPGP, while all of the cryptographic libraries used are open source. By using open-source libraries, Proton Mail can guarantee that the encryption algorithms used do not have clandestinely built-in back doors. Proton Mail in the press: "Proton Mail is a Gmail-like email system which uses end-to-end encryption, making it impossible for outside parties to monitor." Forbes "A new email service being developed by a group who met at MIT and CERN promises to bring secure, encrypted email to the masses and keep sensitive information away from prying eyes." Huffington Post - Create a @proton.me or @protonmail.com email address - Send and receive encrypted emails and attachments with ease - Switch between multiple Proton Mail accounts - Easily manage your email with conversations - Keep your inbox tidy and clean with folders, labels and simple swipe-gestures - Receive new email notifications - Send Password-protected Emails to anyone - Enjoy your inbox in dark mode - Proton Mail is free — We believe everyone deserves privacy. Upgrade to a paid plan to get more done and support our mission. - Easy to use — Our all-new app has been redesigned to make it easier to read, organize, and write your emails. - Your inbox is yours — We don't spy on your communications to show you targeted ads. Your inbox, your rules. - Rigorous encryption — Your entire inbox is secured, on all your devices. No one can read your emails but you. Proton is privacy, guaranteed by end-to-end and zero-access encryption. - Unmatched protection — We offer strong phishing, spam, and spying/tracking protection for all your communications.

Additional information

Project

Developer
Proton AG
License
GPL-3.0 (free software)What this license lets you do

Install

Available via
Flatpak · Snap (4) · Arch Linux (3)
All 8 packagings

Flathub (Flatpak), Snap Store, Snap Store (Candidate build), Snap Store (Beta build), Snap Store (Nightly build), AUR, AUR (Bin build), AUR (Git build)

Flatpak sandbox
Some access

Runs in a sandbox, with access to some of your files or devices.

What it can access
  • Can access all devices, including cameras and USB
  • Can read passwords stored in your keyring
  • Uses the internet

About this data

Sources
8 independent sources agree
Catalog data as of
October 12, 2026
How each source lists it (8)
SourceNameVersionBuilt byLicenseDescription
Flathub (Flatpak)Proton Mail1.14.0—GPL-3.0Secure email that protects your privacy
Snap StoreProton Mail1.14.0—GPL-3.0Proton's encrypted email and calendar desktop application
Snap Store (Candidate build)Proton Mail1.14.0—GPL-3.0Proton's encrypted email and calendar desktop application
Snap Store (Beta build)Proton Mail1.14.0—GPL-3.0Proton's encrypted email and calendar desktop application
Snap Store (Nightly build)Proton Mail1.15.0—GPL-3.0Proton's encrypted email and calendar desktop application
AURproton-mail1.15.1-2—GPL-3.0-or-laterProton official desktop application for Proton Mail and Proton Calendar
AUR (Bin build)proton-mail-bin1.15.1-1Community repackGPL-3.0-or-laterProton official desktop application for Proton Mail and Proton Calendar
AUR (Git build)proton-mail-git1.12.1.r59198.g0fa8804-1—GPL-3.0-or-laterProton official desktop application for Proton Mail and Proton Calendar

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