Best Self-Hosted Google Authenticator Alternatives in 2026
Google Authenticator is a 2FA app that generates time-based one-time passwords for securing account logins.
7 Self-Hosted Alternatives to Google Authenticator
Vaultwarden
57KLightweight, self-hosted Bitwarden-compatible password manager written in Rust. Uses 10x less RAM than the official server and works with all Bitwarden clients.
Ente
25KEnd-to-end encrypted photo storage audited by three independent firms — Google Photos privacy without Google's data practices.
Bitwarden
18KBitwarden is the most trusted password manager for passwords and passkeys at home or at work, on any browser or device. Start with a free trial
Passbolt
5.8KPassbolt is a self-hosted authentication & SSO replacement for 1Password, Authy, and more.
2FAuth
3.8K2FAuth handles manage your Two-Factor Authentication (2FA) accounts and generate their security codes as a self-hosted solution.
Defguard
2.7KFor authentication & SSO, Defguard is a self-hosted solution that provides enterprise-grade VPN solution combining WireGuard.
Authman
9For authentication & SSO, Authman is a self-hosted solution that provides cross-platform 2FA TOTP server with mobile and desktop apps.
Why Look for Google Authenticator Alternatives?
Google Authenticator is a 2FA app that generates time-based one-time passwords for securing account logins.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
7 Best Open-Source Alternatives to Google Authenticator
Vaultwarden
Unofficial Bitwarden-compatible server — 56,811 GitHub stars. Licensed under GPL-3.0.
Ente
Open source and encrypted 2FA platform — 25,220 GitHub stars. Licensed under AGPL-3.0.
Bitwarden
Bitwarden: the trusted password manager. — 18,271 GitHub stars. Licensed under ⚠.
Passbolt
Open source, privacy-focused password manager for teams. — 5,730 GitHub stars. Licensed under AGPL-3.0.
2FAuth
Two-factor authentication management — 3,817 GitHub stars. Licensed under AGPL-3.0.
Defguard
Enterprise, fast, secure VPN & SSO platform with support for hardware keys and 2FA/MFA — 2,644 GitHub stars. Licensed under Custom.
Authman
Cross-platform 2FA TOTP server with mobile and desktop apps — 9 GitHub stars. Licensed under Custom.
Why Self-Host Instead of Google Authenticator?
- Data ownership. Your data stays on your server, not on Google Authenticator’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Why teams switch from Google Authenticator
- → Data ownership. Your data stays on your server -- not on Google Authenticator's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Head-to-Head Comparisons
Both are security tools. AliasVault has 6 unique features, Vaultwarden has 3.
Both are security tools. Authelia has 5 unique features, Vaultwarden has 3.
Both are security tools. Authentik has 4 unique features, Vaultwarden has 4.
Both are security tools. Bitwarden Portal has 4 unique features, Vaultwarden has 3.
Vaultwarden is the better choice for self-hosters -- it is API-compatible with Bitwarden, uses a fraction of the resources, and unlocks all premium features for free. Use official Bitwarden if you need certified enterprise compliance or managed hosting.
Both are security tools. Cosmos has 5 unique features, Vaultwarden has 3.
Both are security tools. Hanko has 3 unique features, Vaultwarden has 3.
Both are security tools. LazyWarden has 2 unique features, Vaultwarden has 3.
Both are security tools. Logto has 7 unique features, Vaultwarden has 2.
Both are security tools. ORY has 4 unique features, Vaultwarden has 4.
Both are security tools. Supertokens has 5 unique features, Vaultwarden has 3.
Both are security tools. Vaultwarden has 3 unique features, VoidAuth has 3.
Both are security tools. Vaultwarden has 2 unique features, Zitadel has 12.
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