Best Open-Source
Auth0 / Okta Alternatives in 2026
Enterprise identity platform with steep MAU cost spikes once applications scale beyond 7,500 active users. Compare verified, self-hostable open-source alternatives that protect your privacy, eliminate vendor lock-in, and give you complete data sovereignty.
Feature Comparison Matrix: Auth0 / Okta vs. Open Source
Side-by-side trade-off analysis across licensing, telemetry, self-hosting, and pricing.
| Feature / Capability | Auth0 / Okta (Proprietary) | Open-Source Equivalents |
|---|---|---|
| Active User (MAU) Pricing | Aggressive Tiers ($$$) | Unlimited Users Free |
| Self-Hostable | SaaS Only | 100% Self-Hosted on Docker / K8s |
| Enterprise SSO / SAML | $10,000+ Enterprise Tier | Included in Community Edition |
| Session Security & DB Proxy | Standard Tokens | DBShield Virtual RBAC Integration |
| Data Sovereignty | Multi-Tenant Cloud | Your Database, Your Encryption Keys |
| Open-Source Core | Proprietary | Apache 2.0 / LGPL / MIT |
Top Open-Source Replacements for Auth0 / Okta
Verified developer tools from DevShelf with one-click install commands and Docker setups.
SuperTokens
Authentication & SecurityLicense: Open SourceOpen-source alternative to Auth0 and Firebase Auth providing passwordless, social login, session management, and user roles.
services:
supertokens:
image: registry.supertokens.io/supertokens/supertokens-postgresql:latest
container_name: supertokens
ports:
- "3567:3567"Keycloak
Authentication & SecurityLicense: Open SourceOpen source identity and access management solution for modern applications and services, supporting OpenID Connect and SAML.
services:
keycloak:
image: quay.io/keycloak/keycloak:latest
container_name: keycloak
restart: unless-stopped
ports:
- "8080:8080"
environment:
- KEYCLOAK_ADMIN=admin
- KEYCLOAK_ADMIN_PASSWORD=admin
command: start-devAuthentik
Authentication & SecurityLicense: Open SourceOpen-source Identity Provider focused on flexibility and versatility with built-in user directory, MFA, and SSO.
Zitadel
Authentication & SecurityLicense: Open SourceOpen source identity infrastructure with turnkey authentication, audit logs, multi-tenancy, and passkeys.
services:
zitadel:
image: ghcr.io/zitadel/zitadel:latest
container_name: zitadel
ports:
- "8080:8080"
command: 'start-from-init --masterkey "MasterkeyNeedsToHave32Characters" --tlsMode disabled'Frequently Asked Questions
Why are developers leaving Auth0 / Okta?
Teams are switching to open-source alternatives because of Staggering price cliffs: $35/mo jumps to $240/mo and thousands for custom domains and MFA. SAML / Enterprise SSO locked behind $10,000+/year enterprise contracts. User credentials stored in external US/EU cloud, complicating residency rules. Service outages disable customer login flow globally. Open-source tools eliminate corporate telemetry and maintain full functionality offline.
Can I self-host these Auth0 / Okta alternatives?
Yes, all recommended open-source equivalents support self-hosting on your own VPS or Kubernetes cluster via Docker Compose, Helm charts, or standalone binaries.
Are there user-seat limits or surprise bills?
No. Permissive open-source licenses (MIT, Apache 2.0, AGPL) have zero per-user seat pricing, allowing your entire engineering organization to collaborate with zero SaaS licensing fees.