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Cybersecurity · head to head

Resolver vs Swagger UI

Resolver logo

Resolver

Cybersecurity

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

From
On request
Free plan
No
Full reviewWebsite
Swagger UI logo

Swagger UI

Developer Tools

Interactive API documentation generated from OpenAPI specs

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Swagger UI has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Swagger UI only as good as the specification: a thin OpenAPI file produces thin documentation
  • They diverge on capability: Resolver covers Incident management, Swagger UI covers OpenAPI rendering.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Resolver and Swagger UI actually diverge.

Attributes where Resolver and Swagger UI differ
AttributeResolverSwagger UI
Starting priceOn requestFree
Pricing modelquoteOpen source, no licence fee
Free tierNoYes
PlatformsWeb, iOS, AndroidWeb, Self-hosted, Docker
CategoryCybersecurityDeveloper Tools

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

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 Resolver

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

Only in Swagger UI

  • OpenAPI rendering
  • Try it out
  • Schema display
  • Self-hostable

What people use each for

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

Resolver

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

Swagger UI

  • Publishing API documentation that stays in step with the specificationnot Resolver
  • Letting developers try endpoints before writing any client codenot Resolver
  • Internal API discovery across teamsnot Resolver

Where each one falls short

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

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.

Swagger UI

  • Only as good as the specification: a thin OpenAPI file produces thin documentation
  • Default presentation is dated compared with modern documentation tools
  • Large specifications render slowly and become hard to navigate
  • Try it out against production needs care with authentication and CORS, and is often disabled as a result

Pricing, plan by plan

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

Swagger UI

Free
  • Swagger UIFree
    • Full functionality
    • Commercial use permitted
    • Community support

Which should you pick?

Choose Resolver if

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

Choose Swagger UI if

  • You need openapi rendering.
  • You want to start without paying.
  • You work on Web, Self-hosted, Docker.
  • You also want try it out.
Swagger UI review

Questions people ask

Is Resolver or Swagger UI better?
Neither clearly leads. Resolver starts at On request and Swagger UI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Resolver or Swagger UI?
Swagger UI has a free tier; the other does not. Paid plans start at On request for Resolver and Free for Swagger UI.
Does Resolver or Swagger UI run on more platforms?
Resolver runs on Web, iOS, Android. Swagger UI runs on Web, Self-hosted, Docker.
Can I use Swagger UI for free?
Yes. Swagger UI has a free tier, so you can try it without paying. Resolver starts at On request.
What is Resolver best used for?
Resolver is most often used for a national retailer consolidating store incident reporting, loss prevention cases and investigations into one system with defensible evidence handling, a bank that needs operational risk events captured against a risk and control register rather than in spreadsheets and email, a university security operations centre running dispatch, case management and clery-style reporting from a single record, an organisation that already retains kroll for investigations and wants case intake and vendor handoff in the same platform. Of those, a national retailer consolidating store incident reporting, loss prevention cases and investigations into one system with defensible evidence handling and a bank that needs operational risk events captured against a risk and control register rather than in spreadsheets and email are not what Swagger UI is typically brought in for.
What can Resolver do that Swagger UI cannot?
Resolver covers Incident management, Investigations, Enterprise risk management, Internal audit. Swagger UI covers OpenAPI rendering, Try it out, Schema display, Self-hostable.

Answered from the vendors’ own pages

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.

Swagger UI: Is Swagger UI free?

Yes, open source under the Apache 2.0 licence. SmartBear sells commercial SwaggerHub separately.

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.

Swagger UI: What is the difference between Swagger and OpenAPI?

OpenAPI is the specification format; Swagger is the toolset around it, including Swagger UI. The specification was renamed from Swagger to OpenAPI in 2016.

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.

Swagger UI: Can Swagger UI make real API calls?

Yes, through its try-it-out control, though authentication and CORS configuration often mean it is disabled for production APIs.

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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