Hanko vs OATH (Open Authentication): Side-by-Side Comparison (2026)

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..

OATH (Open Authentication): Vendor-neutral org publishing open standards for OTP & strong auth. built by OATH (Open Authentication). Core capabilities include Open, royalty-free OTP specifications (HOTP, TOTP, OCRA), HOTP (RFC 4226): counter-based HMAC one-time password standard, TOTP (RFC 6238): time-based one-time password standard..

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

Hanko differentiates with Passkey-based passwordless authentication, Password-based login (optional, configurable), Email passcode (OTP) login. OATH (Open Authentication) differentiates with Open, royalty-free OTP specifications (HOTP, TOTP, OCRA), HOTP (RFC 4226): counter-based HMAC one-time password standard, TOTP (RFC 6238): time-based one-time password standard.

Hanko is developed by Hanko. OATH (Open Authentication) is developed by OATH (Open Authentication). Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Hanko and OATH (Open Authentication) serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover Authentication, MFA, Open Source. Key differences: Hanko is Commercial while OATH (Open Authentication) is Free. Review the feature comparison above to determine which fits your requirements.