Protonmail Web App _hot_ May 2026

| Feature | Proton Mail Web | Gmail Web | | :--- | :--- | :--- | | | Basic (subject, sender, body text) | Full AI-powered predictive search | | Offline Mode | Beta (requires dedicated app/bridge) | Native | | Calendar | Built-in (encrypted, basic) | Deep integration (smart scheduling) | | Filters/Sieve | Advanced (Sieve scripting allowed) | Visual rule builder | | Attachments | 25MB standard (up to 100MB paid) | 25MB (expands to Drive) |

But here is the secret weapon: Even if your grandma uses AOL, you can send her a secure email via the web app. Click "Encrypt for outside." Proton generates a link and a one-time passphrase. She clicks the link, enters the password (which you text her separately), and reads your message in a secure temp mailbox. She never needs a Proton account. Proton Mail vs. Gmail Web: The Feature Trade-off Let’s be honest. You lose some creature comforts. protonmail web app

I’ve spent the last month using the Proton Mail web app as my primary driver. Here is my unfiltered take on the interface, the encryption, the pain points, and the "wow" moments. Logging into mail.proton.me feels refreshingly anti-Google. There are no blinking promotions, no "social" tabs trying to algorithmically sort your life, and zero ads. | Feature | Proton Mail Web | Gmail

Is browser-based email finally secure? With Proton, the answer is surprisingly yes. She never needs a Proton account

Use the web app for composing sensitive emails and archive management. Use the mobile app for quick scans. Don't rely on it for massive historical searches.