🔐 Authentication & login Open source Privacy ★★★★★
SimpleLogin
Email aliases to decouple identity
Overview
SimpleLogin creates unique forwarding aliases (e.g., shop@youralias.domain) so one compromised service does not expose your primary email.
Complements password managers when dismantling Google Sign-In—breaks email-level coupling to Google identity.
Custom domains, reverse aliases, optional PGP forwarding—now integrated with Proton Pass Hide-my-email.
Scores
Privacy 5/5
Ease of use 5/5
Features 3/5
Value 5/5
Google Sign-In / OAuth — comparison
Reduces reliance on one Google-linked email across services—pair with Bitwarden/Pass to replace Google login entirely.
Pros
- ✓ Independent alias per service
- ✓ Disable alias to stop leaks instantly
- ✓ Custom domain support
- ✓ Open source under Proton
Cons & caveats
- − Does not replace OAuth buttons alone
- − Still need password manager
- − Overlaps Proton Pass features
Best for
- Email identity dispersion
- Breach containment strategy
- Proton ecosystem users
Not ideal for
- Standalone Google Sign-In replacement
- All-in-one password plus alias free tier
Specs
- Pricing
- Free + paid — Free 10 aliases. Premium $30/year unlimited. Included in Proton Pass Plus.
- Difficulty
- Easy
- Data location
- Proton/SimpleLogin (Switzerland/Singapore).
- Platforms
- Web · Browser extension · Android · iOS
無制限エイリアスカスタムドメインProton統合
Migration from Google Sign-In / OAuth
- 1 Create SimpleLogin account
- 2 Generate alias per service registration
- 3 Switch from Google Sign-In to alias+password (with PM)
- 4 Revoke obsolete Google OAuth links
Setup steps
- 1 Register at simplelogin.io
- 2 Install browser extension
- 3 Use alias when signing up for services
- 4 Pair with Bitwarden or Proton Pass for passwords
Related on Amazon
Books and devices that may help your migration. Verify specs and price before buying.
- Accessories
YubiKey 5 NFC
Hardware 2FA when moving away from “Sign in with Google”.
View on Amazon ↗