Mail Desktop App | Proton

A major advantage over the web UI is the ability to read, organize, and draft emails while offline. Once a connection is restored, all actions sync automatically with Proton's servers.

If you’ve been using Proton Mail strictly through a web browser, you’re missing out. The new Proton Mail desktop app brings the gold standard of encrypted email directly to your OS.

Being Electron-based, it uses more RAM and CPU than a lightweight mail client. On older machines, it’s noticeable.

This style is punchy, uses emojis, and hits the key selling points quickly.

The desktop application is designed to be fast and responsive, frequently outperforming the web version in scrolling and message-handling speeds.