Is Arnica or Authelia better?

Neither clearly leads. Arnica starts at Free and Authelia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Arnica or Authelia?

Arnica starts at Free and Authelia at Free.

Does Arnica or Authelia run on more platforms?

Arnica runs on Web, GitHub, IDE. Authelia runs on Docker, Kubernetes, Linux, Self-hosted.

Can I use Arnica for free?

Both have a free tier, so you can try either at no cost before committing.

What is Arnica best used for?

Arnica is most often used for detecting ai-generated vulnerabilities in copilot and cursor suggestions, finding hardcoded secrets before they reach production, mapping container vulnerabilities back to source code, generating sbom for supply chain compliance requirements. Of those, detecting ai-generated vulnerabilities in copilot and cursor suggestions and finding hardcoded secrets before they reach production are not what Authelia is typically brought in for.

What can Arnica do that Authelia cannot?

Arnica covers AI SAST, Software Composition Analysis, Secrets detection, IaC scanning. Authelia covers Reverse proxy integration, Two-factor authentication, Access control rules, Lightweight backends.

Cybersecurity · head to head

Arnica vs Authelia

Arnica

Cybersecurity

AI-native application security platform detecting and fixing vulnerabilities across the SDLC

From: Free
Rated: -

Full review Website

Authelia

Cybersecurity

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

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Arnica per-identity pricing ($25-$50/person/year) requires tracking active developers; Authelia depends on a reverse proxy: it is not a standalone identity provider
They diverge on capability: Arnica covers AI SAST, Authelia covers Reverse proxy integration.

Where they differ

Only the attributes on which Arnica and Authelia actually diverge.

Attributes where Arnica and Authelia differ
Attribute	Arnica	Authelia
Pricing model	Per-identity subscription with annual discount	Open source, no licence fee
Platforms	Web, GitHub, IDE	Docker, Kubernetes, Linux, Self-hosted

Identical on both: starting price (Free), free tier (Yes), 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 Arnica

AI SAST
Software Composition Analysis
Secrets detection
IaC scanning
Container scanning
SBOM generation
Agentic rules
Pipelineless integration

Only in Authelia

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

What people use each for

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

Arnica

Detecting AI-generated vulnerabilities in Copilot and Cursor suggestionsnot Authelia
Finding hardcoded secrets before they reach productionnot Authelia
Mapping container vulnerabilities back to source codenot Authelia
Generating SBOM for supply chain compliance requirementsnot Authelia
Scanning infrastructure-as-code for misconfiguration risksnot Authelia

Authelia

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

Where each one falls short

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

Arnica

Per-identity pricing ($25-$50/person/year) requires tracking active developers
Overage identity tracking via 90-day PR activity can be unpredictable
Free plan limited to weekly updates, requiring upgrade for real-time scanning
Advanced add-ons (Image Scanning, AI SAST, Agentic Rules Enforcer) pricing not published
On-premises deployment limited to Enterprise tier

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

Pricing, plan by plan

Arnica

Free

FreeFree
- No credit card required
- 14-day trial available
- Weekly risk identification updates
Core Business$360/year
- Monthly billing option at $30/identity/month
- Annual billing at $25/identity/month (17% discount)
- Real-time risk scanning and notifications
Core Enterprise$720/year
- Monthly billing option at $60/identity/month
- Annual billing at $50/identity/month (17% discount)
- All Core Business features

Authelia

Free

AutheliaFree
- Full functionality
- No usage limits
- Community support

Which should you pick?

Choose Arnica if

You need ai sast.
You want to start without paying.
You work on Web, GitHub, IDE.
You also want software composition analysis.

Arnica review

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.

Authelia review

Questions people ask

Is Arnica or Authelia better?: Neither clearly leads. Arnica starts at Free and Authelia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arnica or Authelia?: Arnica starts at Free and Authelia at Free.
Does Arnica or Authelia run on more platforms?: Arnica runs on Web, GitHub, IDE. Authelia runs on Docker, Kubernetes, Linux, Self-hosted.
Can I use Arnica for free?: Both have a free tier, so you can try either at no cost before committing.
What is Arnica best used for?: Arnica is most often used for detecting ai-generated vulnerabilities in copilot and cursor suggestions, finding hardcoded secrets before they reach production, mapping container vulnerabilities back to source code, generating sbom for supply chain compliance requirements. Of those, detecting ai-generated vulnerabilities in copilot and cursor suggestions and finding hardcoded secrets before they reach production are not what Authelia is typically brought in for.
What can Arnica do that Authelia cannot?: Arnica covers AI SAST, Software Composition Analysis, Secrets detection, IaC scanning. Authelia covers Reverse proxy integration, Two-factor authentication, Access control rules, Lightweight backends.

Answered from the vendors’ own pages

Arnica: How are identities defined in Arnica pricing?

Identities are any users and other contributing entities that contributed code and/or had PR activity during the last 90 days. This ensures billing matches active developers.

Source

Authelia: Is Authelia free?

Yes, open source with no licence fee.

Arnica: What is the annual discount?

Annual prepayment offers approximately 17% savings versus monthly billing. Core Business annual is $300/identity versus $360 for monthly.

Source

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.

Arnica: Can I cancel or downgrade Arnica anytime?

Yes. Subscriptions can be cancelled or downgraded at any time. Overage identities receive automatic protection with true-up invoicing.

Source

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.

Arnica vs Authelia

Arnica

Authelia

The short version

Where they differ

What each one covers

Only in Arnica

Only in Authelia

What people use each for

Arnica

Authelia

Where each one falls short

Arnica

Authelia

Pricing, plan by plan

Arnica

Authelia

Which should you pick?

Choose Arnica if

Choose Authelia if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Arnica

More on Authelia

Keep looking

Other head to heads