: Go to the Proton VPN Download page .
: Source code for the Proton VPN browser extension is also available as a .zip on SourceForge . Download Proton VPN for zip
For most users, the standard installer is the safest and easiest method: : Go to the Proton VPN Download page
If you are looking for the software's source code for development or verification, it is available as a .zip file through third-party mirrors or developer repositories: Download Proton VPN for zip
: You can download the source code for various versions (e.g., version 4.3.9) in .zip format from SourceForge .
: Click "Download for Windows" to get the latest .exe file.