BastionZero OpenPubkey vs Hanko: Side-by-Side Comparison (2026)

BastionZero OpenPubkey: Open source authentication binding public keys to identities via SSO/OpenID. built by BastionZero. Core capabilities include Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration..

Hanko: Open-source auth platform with passkeys, OAuth, and 2FA for web apps. built by Hanko. Core capabilities include Passkey-based passwordless authentication, Password-based login (optional, configurable), Email passcode (OTP) login..

Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.

BastionZero OpenPubkey differentiates with Public key binding to user and workload identities, SSO-based authentication, OpenID Connect integration. Hanko differentiates with Passkey-based passwordless authentication, Password-based login (optional, configurable), Email passcode (OTP) login.

BastionZero OpenPubkey is developed by BastionZero. Hanko is developed by Hanko. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

BastionZero OpenPubkey and Hanko serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover Authentication, SSO, Open Source. Review the feature comparison above to determine which fits your requirements.