For users who need offline access and full desktop functionality, combine with a portable email client like Thunderbird Portable.
If you still need a portable Proton Mail experience, here are three practical methods: proton mail desktop app portable
Some users try to grab the Proton Mail desktop app’s installation folder (from %LOCALAPPDATA%\Programs\proton-mail-desktop ) and copy it to a USB drive. Then they use a tool like to redirect %APPDATA% to the USB. For users who need offline access and full
Despite the lack of official support, the open-source community has bridged the gap. Since Proton Mail is essentially a sophisticated web application, developers have created "wrappers" that isolate the Proton Mail web interface into a standalone app frame. Despite the lack of official support, the open-source
However, as Proton Mail has grown, one specific niche request has emerged from IT professionals, privacy enthusiasts, and "digital nomads":
