Open Authenticator vs OTPHub
Comparing two open source alternatives to Google Authenticator and Authy and Microsoft Authenticator. Use the comparison below to decide which one fits your needs.
Open Authenticator
GPL-3.0Free, open-source cross-platform TOTP authenticator with self-hostable sync backend, built with Flutter.
Side-by-side comparison
| Open Authenticator |  OTPHub | |
|---|---|---|
| License | GPL-3.0 | GPL-3.0 |
| Self-hostable | Yes | No |
| GitHub Stars | 90 | 6 |
| Forks | 16 | — |
| Open Issues | 6 | — |
| Last Commit | Aug 15, 2026 | May 29, 2026 |
| First Released | Mar 25, 2024 | Jun 21, 2024 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
Open Authenticator
OTPHub6
Similar open source alternatives
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Toofer
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Google Authenticator