Softwr
Authelia logo

Authelia

Open-source authentication and two-factor portal for reverse proxies

As of 29 August 2026, Authelia is free to use. A single sign-on and 2FA portal that sits behind your reverse proxy and protects services that have no login. Softwr lists it under Cybersecurity. Authelia is available on Self-hosted, Linux.

Overview

What Authelia does

Authelia is an open-source authentication and authorisation server providing single sign-on and two-factor authentication through a login portal. It is designed to work with a reverse proxy — Nginx, Traefik, Caddy or HAProxy — which forwards authentication decisions to it. That model is its distinguishing feature and its constraint. It protects applications that have no authentication of their own, which is exactly the situation in self-hosted stacks full of admin panels and dashboards. It is deliberately lightweight, with file or LDAP-backed users rather than a full identity platform.

What people use it for

  • Putting a login and 2FA in front of self-hosted services that have none
  • Adding SSO across a small set of internal tools without a full identity platform
  • Home and small-team infrastructure behind a single reverse proxy

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Authelia.

  • Depends on a reverse proxy: it is not a standalone identity provider
  • Configuration is YAML-first with no administrative interface, so changes mean editing files
  • Not a full IAM: user management, provisioning and federation are limited compared with Keycloak
  • Scales poorly as an organisation-wide identity solution, which is not its target

Cross-shopped

What people choose instead of Authelia

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

  • Authelia logo
    Authelia
    vs
    authentik logo
    authentik

    authentik: A middle ground: a real identity provider that is still self-hosted and approachable

Pricing

What Authelia costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

Authelia

Free

  • Full functionality
  • No usage limits
  • Community support

Capabilities

Features

  • Reverse proxy integration

    Works with Nginx, Traefik, Caddy and HAProxy through forward auth

  • Two-factor authentication

    TOTP, WebAuthn and push notification options

  • Access control rules

    Per-domain and per-path policies in configuration

  • Lightweight backends

    File-based or LDAP users, with no heavy dependencies

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

Is Authelia free?

Yes, open source with no licence fee.

Does Authelia need a reverse proxy?

Yes. It integrates through forward authentication with Nginx, Traefik, Caddy or HAProxy rather than sitting in front of traffic itself.

Authelia or Keycloak?

Authelia is far lighter and aimed at protecting self-hosted services behind a proxy. Keycloak is a full identity and access management platform, and much more to run.

Share

Keep looking

Where to go from Authelia

Best Cybersecurity software for

Compare Authelia with

Other Cybersecurity software

  • Open-source identity provider with flexible authentication flows

    Free plan9 researched notes
  • Open-source identity and authentication infrastructure for apps and APIs

    Free, then $24/mo8 researched notes
  • Headless identity and user management API

    Free plan9 researched notes
  • Customer identity and access management platform for SaaS applications

    Free plan9 researched notes
  • Security infrastructure for developers and AI agents

    Free, then $20/mo10 researched notes
  • Open source password management for everyone

    Free, then $1.65/mo12 researched notes
  • Open-source static analysis tool for finding security bugs and enforcing code standards.

    Free, then $30/mo10 researched notes
  • Open-source vulnerability and misconfiguration scanner

    Open source7 researched notes
  • Secure-by-default open source software with hardened container images and libraries

    Free, then $19,000/yr11 researched notes
  • Open-source password manager for teams with self-hosted or cloud deployment

    Free, then $4.9/mo9 researched notes
  • The world's most-loved password manager

    From $2.99/mo10 researched notes
  • European digital identity hub connecting national eID schemes

    Pricing on request10 researched notes
  • AI adjudication of sanctions screening and AML alerts

    Pricing on request10 researched notes
  • Supply chain security platform detecting and blocking malicious dependencies

    Free, then $25/mo11 researched notes
  • Predictive identity verification and fraud scoring for the US market

    Pricing on request11 researched notes
  • Proven security, performance and simplicity for modern networks

    Pricing on request8 researched notes
  • Advanced endpoint protection with deep learning

    From $28/yr11 researched notes
  • Open-source identity, authentication, and permissions infrastructure

    Free, then $64/mo8 researched notes

Softwr does not host reviews and shows no star rating for Authelia, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

More on Authelia

Best Cybersecurity software alternatives

Privileged access management from the merged Thycotic and Centrify

quote

Large Chinese video platform that US federal buyers and federal contractors cannot lawfully use

quote

Managed video loss prevention with human auditors for restaurants, convenience stores and retail

quote

Privileged access management, endpoint privilege management and secure remote access

quote

Cloud video surveillance billed per camera per month, where retention length drives the bill more than anything else

Per camera per month

AI video search that runs on cameras you already own, starting near five dollars per camera per month

Per camera per month

Phishing-resistant passwordless authentication with device trust enforced at every login

quote

Compare Authelia with alternatives