Compare software

KeeTrayTOTPProton Authenticator
Free

Free and open source under the GPL-3.0 licence.

 Free

Free and open source under the GPL, with no advertising. A Proton account is used for…

Windows Windows, Linux, Android, iOS
  • Generates TOTP codes inside KeePass 2
  • Supports Steam's code format as well as standard RFC 6238 codes
  • End-to-end encrypted sync between devices, which most free authenticators lack
  • Apps for Android, iOS, Windows, Linux and macOS
  • Requires KeePass 2; it is not a standalone app
  • Keeping 2FA secrets with passwords weakens the separation of factors
  • Sync requires a Proton account
  • Keeping codes on the same desktop you log in from weakens second-factor separation
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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