Open-source alternatives to Okta

Compare community-driven replacements for Okta in identity & sso workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.

Okta

Okta provides single sign-on, multi-factor authentication, and identity governance for secure access management. It serves both workforce identity and customer identity use cases.Read more

Identity & SSO

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Key stats

18Alternatives
8Support self-hosting
Run on infrastructure you control
16Active development
Recent commits in the last 6 months
13Permissive licenses
MIT, Apache, and similar licenses

Counts reflect projects currently indexed as alternatives to Okta.

All open-source alternatives

Apereo CAS

Enterprise Single Sign-On and Identity Provider for Web

Active developmentPermissive licenseFast to deployJava

Why teams choose it

Multi-protocol support: CAS, SAML2, OAuth2, OpenID Connect, WS-Federation
Extensive authentication backends including LDAP, RDBMS, X.509, RADIUS, and social providers
Built-in MFA with Duo Security, YubiKey, Google Authenticator, WebAuthn FIDO2

Watch for

Java-based deployment requires JVM expertise and infrastructure

Migration highlight

University Campus SSO

Students and faculty authenticate once to access learning management systems, email, library resources, and administrative portals using LDAP credentials with MFA enforcement.

Authelia

Authentication and authorization server with SSO and 2FA

Self-host friendlyActive developmentPermissive licenseGo

Why teams choose it

OpenID Connect 1.0 / OAuth 2.0 certified provider with comprehensive protocol support
Multiple 2FA methods: FIDO2 WebAuthn security keys, TOTP, mobile push, and passwordless passkeys
Fine-grained access control rules matching subdomain, user, group, URI, method, and network

Watch for

Still under active development with potential breaking changes between versions

Migration highlight

Securing self-hosted applications with SSO

Users authenticate once through Authelia's portal and gain access to multiple internal applications with consistent 2FA enforcement across all services.

Authlib

Spec-compliant Python library for OAuth and OpenID Connect

Active developmentPermissive licenseIntegration-friendlyPython

Why teams choose it

Complete OAuth 1.0/2.0 and OpenID Connect 1.0 client and server implementations
Full JOSE suite: JWS, JWE, JWK, JWA, JWT with RFC-compliant cryptography
Native integrations for Flask, Django, Starlette, FastAPI with sync and async support

Watch for

Deprecating authlib.jose module in favor of separate joserfc library requires migration

Migration highlight

Multi-Tenant SaaS Authorization Server

Deploy a compliant OAuth 2.0 provider with PKCE, token introspection, and dynamic client registration for enterprise customers

Better Auth

Comprehensive authentication and authorization library for TypeScript

Self-host friendlyActive developmentPermissive licenseTypeScript

Why teams choose it

Framework-agnostic design works across any TypeScript environment
Plugin ecosystem for 2FA, multi-tenant, OAuth, and SSO with minimal code
Comprehensive authorization features alongside authentication primitives

Watch for

TypeScript-only focus may not suit polyglot development environments

Migration highlight

Multi-Tenant SaaS Platform

Deploy isolated authentication per tenant with role-based access control using built-in plugins, eliminating weeks of custom development.

Casdoor

UI-first IAM and SSO platform with comprehensive protocol support

Self-host friendlyActive developmentPermissive licenseGo

Why teams choose it

Comprehensive protocol support: OAuth 2.0, OIDC, SAML, LDAP, SCIM, RADIUS, and CAS
Modern authentication methods including WebAuthn, TOTP, MFA, and Face ID
Enterprise integrations with Google Workspace, Active Directory, and Kerberos

Watch for

Self-hosted deployment requires infrastructure management and maintenance

Migration highlight

Multi-Application SSO for SaaS Platform

Users authenticate once and access multiple internal applications seamlessly using OAuth 2.0 or OIDC, reducing password fatigue and improving security.

Dex

Federated OpenID Connect identity service with pluggable connectors

Active developmentPermissive licenseIntegration-friendlyGo

Why teams choose it

Federated authentication via 15+ connectors including LDAP, SAML, GitHub, Google, and Active Directory
Issues signed OpenID Connect ID Tokens (JWTs) with standard claims for user identity, email, and groups
Native Kubernetes integration with Custom Resource Definitions and API server OpenID Connect plugin

Watch for

Connector limitations can prevent refresh tokens or group claims depending on upstream protocol

Migration highlight

Kubernetes Cluster Authentication

Users log in to Kubernetes via GitHub or Active Directory; kubectl and dashboard authenticate through dex-issued ID Tokens without managing multiple credential systems.

authentik

Open-source Identity Provider for modern SSO and authentication

Self-host friendlyActive developmentPrivacy-firstPython

Why teams choose it

Multi-protocol support: SAML, OAuth2/OIDC, LDAP, RADIUS in one platform
Scales from Docker Compose labs to Kubernetes production clusters
Enterprise IdP replacement for Okta, Auth0, Entra ID, and Ping Identity

Watch for

Self-hosting requires infrastructure management and maintenance overhead

Migration highlight

Enterprise IdP Migration

Replace Okta or Auth0 with self-hosted authentik, reducing licensing costs while maintaining SAML and OIDC integrations across all applications

Kanidm

Simple, secure identity management platform with everything built-in

Active developmentPermissive licenseIntegration-friendlyRust

Why teams choose it

Passkey and attested WebAuthn authentication with OAuth2/OIDC SSO built-in
Linux/Unix integration with TPM-protected offline auth and SSH key distribution
High-performance internal database with two-node replication—no external SQL required

Watch for

Primary administration via CLI; WebUI focused on user self-service, not admin tasks

Migration highlight

Replace FreeIPA for Linux/Unix Identity

Faster performance, simpler upgrades, and integrated passkey authentication without Kerberos complexity

Keycloak

Open Source Identity and Access Management for Modern Applications

Self-host friendlyActive developmentPermissive licenseJava

Why teams choose it

User federation with existing LDAP and Active Directory systems
Standards-based authentication via OIDC and SAML protocols
Fine-grained authorization and centralized user management

Watch for

Java-based stack may require JVM expertise for customization

Migration highlight

Multi-Application SSO

Users authenticate once and access multiple internal applications without re-entering credentials, improving security and user experience.

Logto

Modern auth infrastructure for SaaS and AI apps

Self-host friendlyActive developmentPermissive licenseTypeScript

Why teams choose it

Multi-tenancy with organization RBAC, SSO, and just-in-time provisioning
SDKs for 30+ frameworks with pre-built, customizable sign-in flows
Full OIDC, OAuth 2.1, and SAML support without protocol complexity

Watch for

MPL-2.0 license requires disclosure of modifications to Logto source files

Migration highlight

Multi-tenant B2B SaaS authentication

Deploy organization-based access control with SSO, RBAC, and member provisioning in days instead of months

Ory Kratos

API‑first identity server for secure, scalable user management

Active developmentPermissive licenseFast to deployGo

Why teams choose it

API‑first identity management with RESTful endpoints
Built‑in MFA, passwordless, and social login flows
Pre‑packaged UI components and Ory Console for admin tasks

Watch for

Self‑hosting requires operational expertise

Migration highlight

Passwordless login for mobile app

Reduces friction for users while enhancing security through WebAuthn.

SSOReady

Add SAML and SCIM to any app in minutes

Permissive licenseIntegration-friendlyAI-powered workflowsTypeScript

Why teams choose it

Two‑line SAML integration and one‑line SCIM call
Language‑agnostic SDKs over a unified HTTP API
Self‑serve onboarding UI for customer‑managed IdPs

Watch for

Enterprise features require a paid plan

Migration highlight

Add SSO button to SaaS dashboard

Users can sign in via their corporate IdP with two lines of code.

Stack Auth

Fast, developer-friendly authentication with built-in dashboard and RBAC

Self-host friendlyActive developmentPrivacy-firstTypeScript

Why teams choose it

Prebuilt `<SignIn/>` / `<SignUp/>` components with OAuth, password and magic‑link support
Built-in user dashboard and account settings UI
Multi‑tenancy, teams, and role‑based access control

Watch for

Primarily targets JavaScript/Node ecosystems

Migration highlight

SaaS product launch

Launches with instant sign-up, email verification, and passwordless login, reducing time-to-market.

SuperTokens

Self‑hosted authentication platform delivering secure login and sessions.

Active developmentFast to deployIntegration-friendlyJava

Why teams choose it

Passwordless and social login options
Built‑in session verification and refresh
Multi‑tenant and role‑based access control

Watch for

Requires self‑hosting and operational overhead

Migration highlight

Passwordless login for a mobile app

Users sign in via email link or SMS, reducing friction and improving conversion.

Hanko

Privacy-first, framework-agnostic authentication and user management platform

Self-host friendlyActive developmentPrivacy-firstGo

Why teams choose it

Supports passwords, passkeys, MFA, OAuth, SAML, and social logins
Framework-agnostic Hanko Elements web components for quick UI integration
API-first backend with JWT, session revocation, and webhooks

Watch for

AGPL-3.0 license may restrict commercial use without a separate license

Migration highlight

Passwordless login for a SaaS dashboard

Users authenticate via WebAuthn passkeys, eliminating passwords and reducing phishing risk.

Tesseral

Scalable API‑first auth platform for B2B SaaS

Active developmentPermissive licenseIntegration-friendlyTypeScript

Why teams choose it

Hosted, brandable login pages with click‑to‑add authentication methods
Built‑in B2B multitenancy and self‑service admin UI for each customer
Zero‑code integration of SSO, MFA, Passkeys, API keys and RBAC

Watch for

Self‑hosting requires own cloud resources and ops

Migration highlight

Enterprise customer onboarding

Admins invite users, configure SSO and enforce MFA from a self‑service console.

Vouch Proxy

Unified SSO gateway for Nginx using OAuth and OIDC

Permissive licenseFast to deployIntegration-friendlyGo

Why teams choose it

Supports 30+ OAuth and OpenID Connect providers
Integrates via Nginx auth_request module
Domain‑wide cookie sharing for seamless SSO

Watch for

Requires Nginx with auth_request module

Migration highlight

Protect multiple microservices behind a single domain

Users authenticate once via Google and gain access to all services without re‑login.

ZITADEL

Multi‑tenant identity platform delivering secure, self‑service authentication.

Active developmentFast to deployIntegration-friendlyGo

Why teams choose it

API‑first design with GRPC & REST endpoints
Native multi‑tenant architecture with self‑service UI
Comprehensive authentication methods (OIDC, OAuth2, SAML, Passkeys, MFA)

Watch for

Requires PostgreSQL (v14+) as an external dependency

Migration highlight

Secure React SPA with OIDC PKCE

Implement OpenID Connect Authorization Code flow with PKCE, enabling seamless login and token handling using ZITADEL’s OIDC endpoints.

Choosing a identity & sso alternative

Teams replacing Okta in identity & sso workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.

8 projects let you self-host and keep customer data on infrastructure you control.
16 options are actively maintained with recent commits.

Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from Okta.

Okta

Okta provides single sign-on, multi-factor authentication, and identity governance for secure access management. It serves both workforce identity and customer identity use cases.Read more

Identity & SSO

Visit Alternative Website

Key stats

18Alternatives
8Support self-hosting
Run on infrastructure you control
16Active development
Recent commits in the last 6 months
13Permissive licenses
MIT, Apache, and similar licenses

Counts reflect projects currently indexed as alternatives to Okta.

Common questions

What protocols does Keycloak support?

Keycloak supports OpenID Connect (OIDC) and SAML 2.0, the two dominant standards for modern identity and access management.

Answer surfaced from Keycloak

Which reverse proxies does Authelia support?

Authelia works with nginx, Traefik, Caddy, Skipper, Envoy, and HAProxy. It integrates with Traefik using ForwardAuth middleware and Caddy using the forward_auth directive.

Answer surfaced from Authelia

Does Better Auth work with my TypeScript framework?

Yes, Better Auth is framework-agnostic and designed to work across any TypeScript environment, including Next.js, SvelteKit, Remix, Express, and others.

Answer surfaced from Better Auth