Desktop App Portable | Proton Mail

Store profile on encrypted volume (VeraCrypt or native disk encryption).

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After session: Sign out, close browser, and unmount/eject encrypted volume.

Proton Mail is one of the world’s most popular encrypted email services, known for its end-to-end encryption and privacy-first philosophy. Many users want to access their Proton Mail account without using a web browser, leading to interest in a dedicated desktop application. But what about a portable version of that desktop app — one that runs from a USB stick without installation?

Let’s clarify what’s available, what’s not, and how to get as close as possible to a truly portable Proton Mail desktop experience. proton mail desktop app portable

Plugging your USB into a public library computer or a cybercafé PC is dangerous. Even if your email is portable, the host OS could have a keylogger capturing your Proton Mail password. Always assume public computers are compromised. Store profile on encrypted volume (VeraCrypt or native