# Authelia

> Authelia is a free, open-source app you can self-host in the identity & SSO category. Single sign-on and two-factor authentication portal for protecting web apps behind a reverse proxy. It has 29,182 GitHub stars, is released under the Apache-2.0 license and ships a Docker image. It is a self-hosted alternative to Auth0 and Okta.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/authelia/authelia |
| Website | https://www.authelia.com/ |
| GitHub stars | 29,182 |
| Forks | 1,501 |
| Open issues | 57 |
| License | Apache-2.0 |
| License type | Open source |
| Language | Go |
| Docker image | Yes |
| Platforms | Docker |
| Categories | Identity & SSO |
| Commits, last 12 months | 2,474 |
| Last commit | Oct 6, 2026 |
| Latest release | v4.39.28 (Sep 17, 2026) |
| Created | Dec 7, 2016 |
| Maintenance | Actively maintained |
| Archived | No |

Topics: totp, ldap, sso-authentication, two-factor-authentication, docker, kubernetes, sso, multifactor, push-notifications, mfa

## Install

Authelia ships a Docker image; follow the README at https://github.com/authelia/authelia for the image name and environment variables.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

## Authelia replaces

- [Auth0 alternatives](https://appsgit.com/alternatives/auth0): An identity platform offering login, single sign-on and user management as a service.
- [Okta alternatives](https://appsgit.com/alternatives/okta): An enterprise identity and single sign-on provider.

## Comparisons

- [authentik vs Authelia](https://appsgit.com/compare/authentik-vs-authelia): Pick authentik for a full identity provider with user management UI, SAML and LDAP; pick Authelia for a lightweight Go forward-auth portal that adds 2FA in front of your reverse proxy.

## Similar apps in Identity & SSO

- [Keycloak](https://appsgit.com/apps/keycloak): Open-source identity and access management with SSO, OIDC, SAML and user federation. (37,156 stars, Apache-2.0, Java, Docker)
- [authentik](https://appsgit.com/apps/authentik): Flexible identity provider and SSO platform with OAuth2, SAML, LDAP and proxy outposts. (25,859 stars, MIT, Python, Docker)
- [SuperTokens](https://appsgit.com/apps/supertokens): Open-source authentication with login, sessions and social sign-in for your own app. (15,335 stars, Apache-2.0, Java, Docker)
- [ZITADEL](https://appsgit.com/apps/zitadel): Identity infrastructure with SSO, passkeys, multi-tenancy and audit trails, built in Go. (15,213 stars, AGPL-3.0, Go, Docker)
- [Logto](https://appsgit.com/apps/logto): Modern auth infrastructure with OIDC, SSO and multi-tenant support for SaaS and apps. (14,652 stars, MPL-2.0, TypeScript, Docker)
- [Casdoor](https://appsgit.com/apps/casdoor): UI-first identity and access management platform supporting OAuth, OIDC, SAML and LDAP. (14,515 stars, Apache-2.0, Go, Docker)
- [Ory Kratos](https://appsgit.com/apps/ory-kratos): Headless identity and user management API with login, registration and account recovery. (13,909 stars, Apache-2.0, Go, Docker)
- [Dex](https://appsgit.com/apps/dex): Federated OpenID Connect provider that connects to LDAP, SAML and OAuth upstream identities. (11,157 stars, Apache-2.0, Go, Docker)

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