: Download the .exe file that says "portable" in the name. Step 3 : Move that file to your USB flash drive. Step 4 : Double-click the file to open your mail anywhere. Option 2: Use Proton Mail Bridge with Portable Thunderbird
Using Proton Mail on library or shared office computers without leaving behind login data.
To help me tailor this setup specifically to your needs, please let me know: proton mail desktop app portable
. While the standard app is available for Windows, macOS, and Linux, it requires a full installation and is primarily a "trialware" experience for free users, who can test it for 14 days before needing a paid subscription. Portable Alternatives & Workarounds
If you lose your USB drive, anyone who finds it could potentially access your local session data if the drive is unprotected. : Download the
Clicking this specific shortcut will now launch Proton Mail in an isolated, borderless window that looks and behaves exactly like a native desktop app, powered entirely by the portable browser directory.
Because Proton AG builds its standalone client using a modern web-tech wrapper framework, the application is uniquely structured to support customized execution hooks. While Proton does not distribute an official .exe or .dmg explicitly labeled "Portable," the global privacy community relies on two primary methodologies to build functional portable environments. 1. Custom Command-Line Directives (Native Windows) Option 2: Use Proton Mail Bridge with Portable
Download Proton Mail. Get end-to-end encrypted email that's private by default. Install Proton Mail on your device to get started. Introducing the Proton Mail desktop app