: Currently, the official installers (EXE for Windows, DMG for macOS, DEB/RPM for Linux) require a standard installation process and do not offer a "no-install" or portable ZIP format. Premium Requirement : Access to the desktop app is restricted to paid subscribers (though free users can access a 14-day trial). Unofficial Portable Alternatives
Final thought: In the end, "portability" is a compromise between convenience and security. Proton Mail chooses security. Use the workarounds above wisely, and never forget to physically secure your USB drive. proton mail desktop app portable
As of 2025, there is no official Proton Mail portable desktop app. : Currently, the official installers (EXE for Windows,
Have you found another way to make Proton Mail portable? Share your method in the comments (responsibly). Proton Mail chooses security
Open your preferred browser (like or Brave ) and log in to Proton Mail.