Home / Identity & SSO / Authentik

Authentik — open source alternative

Modern identity provider with a polished admin UI.

Strengths

  • SAML, OIDC, LDAP, proxy-auth flows in one binary.
  • Flow-based policies make complex auth readable.
  • Active development and friendly docs.

Weaknesses

  • Newer than Keycloak — fewer integrations in the wild.
  • Some enterprise features are Enterprise-tier only.
  • Postgres + Redis + worker — still multi-service to operate.
License: MIT Self-host difficulty: 3/5 Hosted cloud option

Official site · Source on GitHub

Ad slot — OSS middle

Authentik is used as an alternative to

Okta

Enterprise identity, SSO and MFA cloud.

See all alternatives →

More open source in this category

Discover other projects tagged Identity & SSO on the category page.

Other open source projects in Identity & SSO

Keycloak

Enterprise-grade identity and access management from Red Hat.

License: Apache-2.0

Authelia

Single sign-on portal designed for reverse proxies.

License: Apache-2.0

Zitadel

Cloud-native identity platform built in Go with event sourcing.

License: Apache-2.0

Recommended reading

When self-hosting goes wrong: seven failure modes and how to avoid them

An honest retrospective on the ways self-hosted setups break — not in theory, but in practice — and the small habits that prevent most of them.

Will the open source project you depend on still exist in three years?

Bus factor, maintainer burnout, funding models, and the signals that separate OSS projects that survive from those that quietly decay.

From SaaS to self-hosted: a 30-day migration playbook

A week-by-week plan to move one service off SaaS and onto your own server without breaking your team's workflow.