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 | 89 | 6 |
| Forks | 16 | — |
| Open Issues | 6 | — |
| Last Commit | Jul 8, 2026 | May 29, 2026 |
| First Released | Mar 25, 2024 | Jun 21, 2024 |
| Categories | ||
| Tags |
Similar open source alternatives
Trezur
Fast, secure, light-weight web-app to generate TOTP and HOTP tokens.
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Google Authenticator
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Toofer
Toofer is a local-first, web-based two-factor authentication app that stores your TOTP secrets directly in your browser. Private, simple, fully offline.
Alternative to: Google Authenticator
Google Authenticator