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Cybersecurity · head to head

Authelia vs Resolver

Authelia logo

Authelia

Cybersecurity

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

From
Free
Rated
-
Full reviewWebsite
Resolver logo

Resolver

Cybersecurity

Risk, incident and investigations platform for corporate security and operational risk teams, owned by Kroll

From
On request
Rated
-
Full reviewWebsite

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; Resolver kroll ownership since 2022 means the product is sold alongside risk consulting services, so buyers who want software with no services attach should expect that conversation and should price the licence separately in negotiation.
  • They diverge on capability: Authelia covers Reverse proxy integration, Resolver covers Incident management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Authelia and Resolver actually diverge.

Attributes where Authelia and Resolver differ
AttributeAutheliaResolver
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsDocker, Kubernetes, Linux, Self-hostedWeb, iOS, Android

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 Resolver

  • Incident management
  • Investigations
  • Enterprise risk management
  • Internal audit
  • Compliance and obligations
  • Business continuity
  • Risk Event Management
  • Configurable dashboards

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 Resolver
  • Adding SSO across a small set of internal tools without a full identity platformnot Resolver
  • Home and small-team infrastructure behind a single reverse proxynot Resolver

Resolver

  • A national retailer consolidating store incident reporting, loss prevention cases and investigations into one system with defensible evidence handlingnot Authelia
  • A bank that needs operational risk events captured against a risk and control register rather than in spreadsheets and emailnot Authelia
  • A university security operations centre running dispatch, case management and clery-style reporting from a single recordnot Authelia
  • An organisation that already retains Kroll for investigations and wants case intake and vendor handoff in the same platformnot 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

Resolver

  • Kroll ownership since 2022 means the product is sold alongside risk consulting services, so buyers who want software with no services attach should expect that conversation and should price the licence separately in negotiation.
  • Configuration flexibility comes at the cost of implementation time, with deployments commonly running several months and typically requiring vendor or partner services, so the first-year cost is well above the annual licence.
  • Module-based pricing means the platform gets expensive quickly once you add audit, compliance and continuity to a security-led purchase, and modules bought later rarely carry the discount of the original deal.
  • The IT and cyber compliance side is thinner than dedicated tools, so organisations chasing SOC 2 or ISO 27001 evidence automation will find it does not replace a Drata or Vanta.
  • Reporting is capable but the drag and drop builder has a real learning curve, and organisations that do not train an internal administrator end up raising support tickets for changes that should be self-service.

Pricing, plan by plan

Authelia

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

Resolver

On request
  • Resolver Core$undefined/year
    • Priced by modules selected and number of users
    • Annual or multi-year enterprise agreement
    • Implementation and configuration quoted separately

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.
Authelia review

Choose Resolver if

  • You need incident management.
  • You work on Web, iOS, Android.
  • You also want investigations.
Resolver review

Questions people ask

Is Authelia or Resolver better?
Neither clearly leads. Authelia starts at Free and Resolver at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Authelia or Resolver?
Authelia has a free tier; the other does not. Paid plans start at Free for Authelia and On request for Resolver.
Does Authelia or Resolver run on more platforms?
Authelia runs on Docker, Kubernetes, Linux, Self-hosted. Resolver runs on Web, iOS, Android.
Can I use Authelia for free?
Yes. Authelia has a free tier, so you can try it without paying. Resolver starts at On request.
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 Resolver is typically brought in for.
What can Authelia do that Resolver cannot?
Authelia covers Reverse proxy integration, Two-factor authentication, Access control rules, Lightweight backends. Resolver covers Incident management, Investigations, Enterprise risk management, Internal audit.

Answered from the vendors’ own pages

Authelia: Is Authelia free?

Yes, open source with no licence fee.

Resolver: Who owns Resolver?

Kroll, which acquired it in 2022. It is marketed as a Kroll business and sold alongside Kroll risk and investigations services.

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.

Resolver: What does Resolver cost?

Pricing is not published. It is quoted by module and user count on an annual or multi-year enterprise agreement, with implementation charged separately.

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.

Resolver: Is Resolver a SOC 2 compliance tool?

No. It is a risk, incident and investigations platform. Automated evidence collection for security certifications is not its strength.

Resolver: How long does implementation take?

Months rather than weeks for a multi-module deployment, and most customers use vendor or partner services to configure it.

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