Advanced users can use open-source utilities like Nativefier to create an executable wrapper around the Proton Mail web app. Install Node.js on a development machine.
Proton has not released a portable version for three main reasons:
Proton Mail Desktop: Security and Portability For a long time, Proton Mail
The Ultimate Guide to Using a Proton Mail Desktop App Portable Solution proton mail desktop app portable
Portability introduces unique physical and digital risks. Guard your data with these essential security steps: 1. Encrypt Your USB Hardware
The most secure way to get a portable experience is to use the like Tor Browser or a portable version of Firefox.
The demand for a portable version stems from several legitimate use cases: Advanced users can use open-source utilities like Nativefier
Click the browser's main menu button (three vertical dots in the top right corner).
achieves 90% of what people want from a portable app.
A Proton Mail Windows Store App might be possible, which could support "roaming" profiles via Microsoft Account sync. However, a true standalone USB-portable executable seems unlikely. Guard your data with these essential security steps: 1
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Some open-source developers create wrappers for popular services using frameworks like Electron or Tauri. Tools like help wrap standard applications into portable formats.
