Best OpenOTP Authentication Server Alternatives in 2026
15 Multi-Factor authentication software our editors would look at instead of OpenOTP Authentication Server, in our ranking order.
OpenOTP Authentication Server: A broad self-hosted MFA server for organizations that need PKI and federation. Where it falls short: freeware license supports up to 25 users.
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Best forTeams wanting a mature free MFA tier
A broad MFA platform with a capable free tier and paid passwordless access.
Free plan · paid from $3/user/mo · 30-day trial Our Cisco Duo Passwordless verdict → Visit Cisco Duo6.0/10★★★☆☆Visit Cisco Duo -
Best forFeature-rich MFA across legacy systems
Broad MFA coverage for mixed environments, with adaptive access and passwordless options.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
8.0/10★★★★☆Visit miniOrange -
Best forFlexible cloud or self-hosted MFA
A flexible MFA platform with broad factors, offline access, and multiple deployment options.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
10.0/10★★★★★Visit LoginTC -
Best forOrganizations needing flexible hybrid MFA
A flexible MFA platform with broad factors, hybrid deployment, and a one-user free plan.
- Device trust controls
- Adaptive access policies
7.7/10★★★★☆Visit Rublon -
Best forEnterprise adaptive MFA
Enterprise MFA with adaptive policies, passwordless options, and device-posture checks.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
8.0/10★★★★☆Visit Okta -
Best forAffordable workforce push MFA
A practical workforce MFA option with push, offline OTP, biometrics and adaptive policies.
5.0/10★★☆☆☆Visit PingID -
Akamai MFA not yet scored
Best forMature adaptive MFA with strong device controls
A broad MFA service for organizations needing adaptive access and device controls.
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit Akamai MFA -
FortiAuthenticator not yet scored
Best forSelf-hosted MFA for network-heavy environments
A broad self-hosted MFA platform for complex networks, directories, certificates, and SSO.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit Fortinet -
Best forHealthcare and shared-workstation environments
A modular access platform for healthcare, shared workstations, and complex enterprise environments.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
7.0/10★★★★☆Visit Imprivata -
SecureAuth MFA not yet scored
Best forRisk-aware MFA with fatigue protection
A hybrid MFA platform with adaptive policies, device trust, and phishing-resistant factors.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit SecureAuth -
Secret Double Octopus not yet scored
Best forPasswordless MFA for complex hybrid estates
A broad passwordless MFA platform for hybrid estates, including offline and legacy environments.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit site -
OpenText NetIQ Advanced Authentication not yet scored
Best forEstablished multi-site MFA deployments
A broad, hybrid MFA framework for established multi-site deployments.
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit OpenText -
privacyIDEA not yet scored
Best forOpen-source self-hosted token management
A broad, auditable MFA server for organizations comfortable operating Linux infrastructure.
- Passwordless authentication
—not yet scoredVisit privacyIDEA -
Best forMFA with large application catalog needs
A broad MFA and access platform for organizations with complex application environments.
2.6/10★☆☆☆☆Visit RSA ID Plus -
Pointsharp MFA not yet scored
Best forHybrid MFA with PKI and smart cards
A broad MFA platform for organizations combining modern and hardware-backed authentication.
- Device trust controls
- Adaptive access policies
- Passwordless authentication
—not yet scoredVisit Pointsharp
OpenOTP Authentication Server Alternatives: Common Questions
What is the best alternative to OpenOTP Authentication Server?
Cisco Duo Passwordless: #1 in our Multi-Factor Authentication Software ranking, with an editor score of 6.0 out of 10. A broad MFA platform with a capable free tier and paid passwordless access.
Is there a free alternative to OpenOTP Authentication Server?
Yes. Cisco Duo Passwordless, LoginTC, Rublon MFA and privacyIDEA have a free plan or a free tier.
What is the cheapest paid alternative to OpenOTP Authentication Server?
Of the alternatives here that publish a price, miniOrange Multi-Factor Authentication starts lowest, at $2/user/mo.
OpenOTP Authentication Server vs Each Alternative
| # | Tool | Free plan | Paid from | Deployment | Supported factors | App integration methods | Adaptive access policies | Score |
|---|---|---|---|---|---|---|---|---|
| not scored | OpenOTP Authentication Server | Yes | — | — | Mobile push; FIDO2/passkeys; PKI certificates/smart cards; OATH software and hardware tokens; YubiKey; secure magic links; email OTP; SMS OTP; printed OTP lists | RADIUS; LDAP; Windows Credential Provider; macOS Credential Provider; Linux PAM; SAML; OpenID Connect; ADFS plugin; application plugins | Yes | — |
| 1 | Cisco Duo Passwordless | Yes | $3/user/mo | — | — | — | — | 6.0 |
| 2 | miniOrange Multi-Factor Authentication | No | $2/user/mo | — | OTP over SMS/email, authenticator apps (including Google and Microsoft), push notifications, hardware security keys, biometrics, security questions, backup codes | SAML, RADIUS, OpenID, JWT; VPN/VDI and desktop agents | Yes | 8.0 |
| 3 | LoginTC | Yes | $3/user/mo | — | push notifications, push number matching, software OTP, email OTP, SMS OTP, phone call, FIDO2/WebAuthn security keys, OATH hardware tokens, authenticator apps, biometrics, passcode grids, bypass codes, offline QR scan | RADIUS, LDAP, SAML/SSO, Active Directory, Microsoft Entra ID, ADFS, connectors, iframe authentication, REST API | Yes | 10.0 |
| 4 | Rublon MFA | Yes | — | Hybrid | Mobile Push; Passcode (TOTP); FIDO2/U2F security keys; FIDO2 passkeys; QR Code; YubiKey OTP; Email Link; SMS Passcode; SMS Link; Phone Call; RFID | Connectors and plugins; Rublon Authentication Proxy; Rublon Access Gateway; SAML; RADIUS; LDAP; Microsoft Active Directory | Yes | 7.7 |
| 5 | Okta Adaptive Multi-Factor Authentication | No | $17/user/mo | Hybrid | Okta FastPass; FIDO2/WebAuthn; PIV/CAC smart cards; biometrics; Okta Verify; SMS; email; voice; Duo; third-party authenticators | SAML; RADIUS; Okta RADIUS Agent | Yes | 8.0 |
| 6 | PingID | No | $6/user/mo | — | — | — | — | 5.0 |
| not scored | Akamai MFA | No | — | Cloud | Phone security key (FIDO2), security key, platform authenticator, passkey, push notification, TOTP, email or SMS OTP, hardware-token TOTP/HOTP, phone-call OTP, magic link, bypass code, third-party authenticator OTP | SAML 2.0; PacketFence Gateway using RADIUS, LDAP, or Active Directory; Unix PAM; Windows Logon; APIs | Yes | — |
| not scored | FortiAuthenticator | — | — | Hybrid | Password; FortiToken hardware; FortiToken Mobile; SMS; email; FIDO2 security keys/passkeys | RADIUS; TACACS+; LDAP; SAML; REST API; Fortinet Security Fabric | Yes | — |
| 9 | Imprivata Enterprise Access Management | — | — | Hybrid | Network password, device-bound passkey, Imprivata ID, face recognition, security key, Imprivata PIN, proximity card, fingerprint, FIDO security key, smart card, smart USB token, one-time password token, security questions | SAML, OIDC, API-based SSO, Application Profile Generator for legacy applications | Yes | 7.0 |
| not scored | SecureAuth MFA | No | — | — | Push with number matching; TOTP; SMS OTP; email OTP; voice OTP; FIDO2 hardware keys; software tokens; biometrics; risk-based authentication | — | Yes | — |
| not scored | Secret Double Octopus | — | — | Hybrid | Mobile push, OTP, biometrics, FIDO2 security keys, X.509 smart cards, BLE authentication, phone calls | SAML, OIDC, LDAP/LDAPS, RADIUS, REST API | Yes | — |
| not scored | OpenText NetIQ Advanced Authentication | — | — | Hybrid | password, one-time password, biometrics, FIDO2, FIDO U2F, smart cards, PKI, smartphone, SMS OTP, email OTP, security questions, device authentication, voice, facial recognition, fingerprint, geo-fencing, out-of-band authentication | RADIUS, SAML, OIDC/OAuth2, ADFS, Kerberos, REST, Mobile APIs, com APIs, native Microsoft plug-ins | Yes | — |
| not scored | privacyIDEA | Yes | None | Self_hosted | Passkeys/WebAuthn, push, HOTP/TOTP, mOTP, TAN lists, email, SMS, TiQR, U2F, YubiKey, Nitrokey, questionnaire, Four Eyes, registration, temporary password, X.509 certificate, SSH public key, RADIUS and remote tokens | REST API (JWT), RADIUS, plugins (including PAM and Windows Credential Provider), identity-provider integrations | No | — |
| 15 | RSA ID Plus | No | — | — | — | — | No | 2.6 |
| not scored | Pointsharp MFA | — | — | Hybrid | Mobile authenticator app, passkeys/FIDO, certificates/PKI, OTP tokens, email or SMS one-time passwords, security keys, smart cards, biometrics, passwords, location | FIDO2, SAML, OpenID Connect, Microsoft AD FS, Microsoft Entra External Authentication Methods, cloud and on-premises application integration | Yes | — |
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026