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Cybersecurity · head to head

Authelia vs Bitdefender Total Security

Authelia logo

Authelia

Cybersecurity

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

From
Free
Rated
-
Bitdefender Total Security logo

Bitdefender Total Security

Cybersecurity

The world's #1 rated antivirus

From
$19.99/year
Rated
-

The short version

  • Only Authelia has a free tier, so it costs nothing to try first.
  • Each has a real cost: Authelia depends on a reverse proxy: it is not a standalone identity provider; Bitdefender Total Security vPN limited to 200MB per day, insufficient for streaming video or extended browsing sessions
  • They diverge on capability: Authelia covers Reverse proxy integration, Bitdefender Total Security covers Advanced threat defense.

Where they differ

Only the attributes on which Authelia and Bitdefender Total Security actually diverge.

Attributes where Authelia and Bitdefender Total Security differ
AttributeAutheliaBitdefender Total Security
Starting priceFree$19.99/year
Pricing modelOpen source, no licence feeUnknown
Free tierYesNo
PlatformsDocker, Kubernetes, Linux, Self-hostedWindows, macOS, iOS, Android
FoundedUnknown2001

Identical on both: user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Authelia

  • Reverse proxy integration
  • Two-factor authentication
  • Access control rules
  • Lightweight backends

Only in Bitdefender Total Security

  • Advanced threat defense
  • Multi-layer ransomware protection
  • Real-time data protection
  • Network threat prevention
  • VPN
  • Parental advisor
  • Anti-tracker
  • Microphone monitor

What people use each for

The jobs each tool is most often brought in to do.

Authelia

  • Putting a login and 2FA in front of self-hosted services that have nonenot Bitdefender Total Security
  • Adding SSO across a small set of internal tools without a full identity platformnot Bitdefender Total Security
  • Home and small-team infrastructure behind a single reverse proxynot Bitdefender Total Security

Bitdefender Total Security

  • Antivirusnot Authelia
  • Internet Securitynot Authelia
  • Endpoint Protectionnot Authelia

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

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

Bitdefender Total Security

  • VPN limited to 200MB per day, insufficient for streaming video or extended browsing sessions
  • Limited features on Apple devices with iOS version lacking scheduled scans, firewall, file shredder, and other tools
  • Failed to detect 10% of virus samples during in-house testing, falling short of perfect detection rates
  • Auto-renewal billing issues with complaints about unauthorized recurring charges and difficulties with refunds
  • Device optimization tools less extensive than competitors, lacking game booster, driver updater, startup manager, and battery usage manager

Pricing, plan by plan

Authelia

Free
  • AutheliaFree
    • Full functionality
    • No usage limits
    • Community support

Bitdefender Total Security

$19.99/year

No published plan breakdown. See the Bitdefender Total Security review.

Which should you pick?

Choose Authelia if

  • You need reverse proxy integration.
  • You want to start without paying.
  • You work on Docker, Kubernetes, Linux, Self-hosted.
  • You also want two-factor authentication.

Choose Bitdefender Total Security if

  • You need advanced threat defense.
  • You work on Windows, macOS, iOS, Android.
  • You also want multi-layer ransomware protection.

Questions people ask

Is Authelia or Bitdefender Total Security better?
Neither clearly leads. Authelia starts at Free and Bitdefender Total Security at $19.99/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Authelia or Bitdefender Total Security?
Authelia has a free tier; the other does not. Paid plans start at Free for Authelia and $19.99/year for Bitdefender Total Security.
Does Authelia or Bitdefender Total Security run on more platforms?
Authelia runs on Docker, Kubernetes, Linux, Self-hosted. Bitdefender Total Security runs on Windows, macOS, iOS, Android.
Can I use Authelia for free?
Yes. Authelia has a free tier, so you can try it without paying. Bitdefender Total Security starts at $19.99/year.
What is Authelia best used for?
Authelia is most often used 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. Of those, putting a login and 2fa in front of self-hosted services that have none and adding sso across a small set of internal tools without a full identity platform are not what Bitdefender Total Security is typically brought in for.
What can Authelia do that Bitdefender Total Security cannot?
Authelia covers Reverse proxy integration, Two-factor authentication, Access control rules, Lightweight backends. Bitdefender Total Security covers Advanced threat defense, Multi-layer ransomware protection, Real-time data protection, Network threat prevention.

Answered from the vendors’ own pages

Authelia: Is Authelia free?

Yes, open source with no licence fee.

Bitdefender Total Security: What are Bitdefender's main features?

Total Security includes real-time antivirus, anti-phishing, anti-ransomware, firewall, secure VPN (limited), password manager, file shredder, and anti-tracker. Additional features include parental controls, advanced threat defense, privacy firewall, and webcam/microphone protection.

Authelia: 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.

Bitdefender Total Security: What did Bitdefender score on AV-TEST?

Bitdefender scored 6/6 across protection, performance, and usability in the January-February 2026 AV-TEST evaluation, and AV-Comparatives named it Product of the Year with a 99.98% detection rate.

Authelia: 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.

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