🤝 no affiliate links · no paid placements · every entry lists honest trade-offs

Auth0 Essentials alternatives

Killing $35/mo (starts billing at 500 MAU) (~$420/yr) — here are 2 verified escapes, honest trade-offs included.

head-to-head

Keycloak
price Free self-host
self-hostable yes
license Apache-2.0
verified 2026-08

free & open source (2)

Keycloak oss self-host Apache-2.0
Free self-host

Enterprise-grade SSO, OIDC/SAML, social logins — run unlimited users for free.

trade-offs: You operate and secure it · Heavier resource footprint

github →
Authelia oss self-host Apache-2.0
Free self-host

Lightweight authentication gateway with 2FA, perfect behind a reverse proxy.

trade-offs: No hosted UI management console · SAML support limited

github →

faq

What is the best free alternative to Auth0 Essentials?

Keycloak is the top free option — Enterprise-grade SSO, OIDC/SAML, social logins — run unlimited users for free.

How much can I save by switching from Auth0 Essentials?

Auth0 Essentials costs $35/mo (starts billing at 500 MAU), so switching to a free alternative saves roughly $420/year per seat.

Can Auth0 Essentials be self-hosted?

Yes — Keycloak and Authelia can be self-hosted for free.

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