Proton supports multiple accounts on its own. On the web, you can stay signed in to several Proton accounts and use a different one in each browser tab. The Proton Mail apps for iPhone and Android let you add accounts and switch between them without signing out. Where it gets awkward is the desktop: browser tabs for different accounts look the same and mix with everything else you have open. If you want each Proton Mail account in its own window, WebCatalog Desktop is a good fit.
Sign in to several Proton accounts on the web
Proton's web apps remember your session, so a new tab opens with the account you're already using. To add another account, follow Proton's guide to using multiple accounts in browser tabs:
- Sign in to your first account at mail.proton.me.
- Open a new tab and go to any Proton sign-in page. It signs you in to the same account.
- Click your account name in the top-right corner and select Add another account.
- Choose Add Proton Account and sign in with your second account, including its two-factor code if you use one.
Each tab can now use a different account. With two or more accounts signed in, opening a Proton sign-in page in a new tab shows a list where you pick the account for that tab.
Use several accounts in the Proton Mail mobile apps
The Android and iOS apps both support multiple accounts. You add accounts in the app and switch between inboxes without signing out and back in.
The official Proton Mail desktop app
Proton also makes a Proton Mail desktop app for Windows and macOS, with a Linux version in beta. Proton says it's for paid plans; if you're on a free plan, you can try it for 14 days.
Give each account its own window with WebCatalog Desktop
WebCatalog Desktop (macOS, Windows, and Linux) runs Proton Mail's web app as a desktop app with its own window and Dock or taskbar icon. With profiles, each account gets its own cookies and session, so a personal account and a work account open in separate windows and never share a browser session. That separation also suits people who keep a Proton address apart from their everyday identity.
- Install WebCatalog Desktop and add Proton Mail from the catalog.
- Open Profiles, select Add profile, and name it, for example Personal.
- Open Proton Mail with that profile and sign in with that account.
- Add a profile for each other account, such as Work or Newsletters, and sign in there.
The help article on creating and managing profiles covers renaming and deleting them. Deleting a profile removes its local data and sessions, not your Proton account. To keep each account next to the apps you use with it, group them in spaces, for example a Work space with Proton Mail and your team's chat app.
Frequently asked questions
Does WebCatalog Desktop change Proton Mail's encryption?
No. It loads Proton's own web app, so encryption works exactly as it does in your browser. WebCatalog Desktop doesn't add or replace any of it.
Conclusion
Browser tabs and the mobile apps are enough for occasional use. If you want each Proton Mail account signed in and open in its own window, download WebCatalog Desktop.
