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Cybersecurity · head to head

Ory Kratos vs Trivy

Ory Kratos logo

Ory Kratos

Cybersecurity

Headless identity and user management API

From
Free
Rated
-
Full reviewWebsite
Trivy logo

Trivy

Cybersecurity

Open-source vulnerability and misconfiguration scanner

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ory Kratos headless means you build every screen, which is significant work compared with a hosted login page; Trivy reports what public advisory databases know, so coverage varies by ecosystem and unfixed CVEs create noise
  • They diverge on capability: Ory Kratos covers Headless API, Trivy covers Multi-target scanning.

Where they differ

Only the attributes on which Ory Kratos and Trivy actually diverge.

Attributes where Ory Kratos and Trivy differ
AttributeOry KratosTrivy
Pricing modelOpen-source self-hosted, with a paid managed networkOpen source, no licence fee
PlatformsLinux, Docker, Kubernetes, Self-hostedLinux, macOS, Windows, Docker, Kubernetes

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 Ory Kratos

  • Headless API
  • Self-service flows
  • Multi-factor authentication
  • Pluggable identity schemas

Only in Trivy

  • Multi-target scanning
  • Vulnerability detection
  • Misconfiguration checks
  • Secret detection

What people use each for

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

Ory Kratos

  • Products needing complete control over the look and flow of authenticationnot Trivy
  • Applications that must not hand user identity data to a third partynot Trivy
  • Teams building identity as infrastructure across several servicesnot Trivy

Trivy

  • Failing a pull request when a container image introduces a known CVEnot Ory Kratos
  • Scanning Terraform and Kubernetes manifests for misconfiguration before applynot Ory Kratos
  • Catching committed secrets as part of an existing CI stepnot Ory Kratos

Where each one falls short

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

Ory Kratos

  • Headless means you build every screen, which is significant work compared with a hosted login page
  • More moving parts than a monolithic IAM: Kratos handles identity, and OAuth2 needs Ory Hydra alongside
  • Documentation assumes real familiarity with identity concepts and is not a gentle introduction
  • Self-hosting identity carries the security and availability burden that hosted providers absorb

Trivy

  • Reports what public advisory databases know, so coverage varies by ecosystem and unfixed CVEs create noise
  • No built-in triage or exception workflow, so suppressing accepted risk is managed in config files
  • Findings are point-in-time from CI, with no continuous runtime monitoring unless you add the commercial platform

Pricing, plan by plan

Ory Kratos

Free
  • Self-hostedFree
    • Full identity server
    • All flows
    • Community support

Trivy

Free
  • TrivyFree
    • Full scanner
    • Unlimited scans
    • Community support

Which should you pick?

Choose Ory Kratos if

  • You need headless api.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want self-service flows.
Ory Kratos review

Choose Trivy if

  • You need multi-target scanning.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want vulnerability detection.
Trivy review

Questions people ask

Is Ory Kratos or Trivy better?
Neither clearly leads. Ory Kratos starts at Free and Trivy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ory Kratos or Trivy?
Ory Kratos starts at Free and Trivy at Free.
Does Ory Kratos or Trivy run on more platforms?
Ory Kratos runs on Linux, Docker, Kubernetes, Self-hosted. Trivy runs on Linux, macOS, Windows, Docker, Kubernetes.
Can I use Ory Kratos for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ory Kratos best used for?
Ory Kratos is most often used for products needing complete control over the look and flow of authentication, applications that must not hand user identity data to a third party, teams building identity as infrastructure across several services. Of those, products needing complete control over the look and flow of authentication and applications that must not hand user identity data to a third party are not what Trivy is typically brought in for.
What can Ory Kratos do that Trivy cannot?
Ory Kratos covers Headless API, Self-service flows, Multi-factor authentication, Pluggable identity schemas. Trivy covers Multi-target scanning, Vulnerability detection, Misconfiguration checks, Secret detection.

Answered from the vendors’ own pages

Ory Kratos: Is Ory Kratos free?

Yes, open source and free to self-host. Ory Network is a paid managed service.

Trivy: Is Trivy free?

Yes, open source from Aqua Security with no licence fee. Aqua sells a commercial platform around it.

Ory Kratos: What does headless mean here?

Kratos provides identity flows as APIs and no user interface. You build the login, registration and recovery screens yourself.

Trivy: What can Trivy scan?

Container images, filesystems, Git repositories, Kubernetes clusters and infrastructure-as-code, for vulnerabilities, misconfigurations, secrets and licences.

Ory Kratos: Does Kratos do OAuth2?

No. Kratos handles user identity; OAuth2 and OpenID Connect provider functionality is Ory Hydra, a separate component.

Trivy: Does Trivy need a server?

No. It is a single binary, which is a large part of why it became a default in CI.

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