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Developer Tools · head to head

ESLint vs Resolver

ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Free plan
Yes
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

The short version

  • Only ESLint has a free tier, so it costs nothing to try first.
  • Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; 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.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ESLint and Resolver actually diverge.

Attributes where ESLint and Resolver differ
AttributeESLintResolver
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsBrowser-based JavaScript, Node.js, Any JavaScript environmentWeb, iOS, Android
CategoryDeveloper ToolsCybersecurity
Founded2019Unknown

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 ESLint

Nothing recorded that Resolver does not also cover.

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.

ESLint

  • Statically analysing JavaScript and JSX to find problems before runtimenot Resolver
  • Automatically fixing issues with syntax-aware rewritesnot Resolver
  • Enforcing a consistent code style across a teamnot Resolver
  • Running as a CI step to block non-conforming codenot Resolver
  • Writing custom rules for project-specific conventionsnot Resolver

Resolver

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

Where each one falls short

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

ESLint

  • Slow performance on large codebases compared to newer tools like Oxlint and Biome
  • Complexity in configuration from scratch, particularly for TypeScript support
  • Limited built-in TypeScript support, requiring separate parsers and coordination with new TypeScript features

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

ESLint

Free

No published plan breakdown. See the ESLint review.

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 ESLint if

  • You want to start without paying.
  • You work on Browser-based JavaScript, Node.js, Any JavaScript environment.

Choose Resolver if

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

Questions people ask

Is ESLint or Resolver better?
Neither clearly leads. ESLint 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, ESLint or Resolver?
ESLint has a free tier; the other does not. Paid plans start at Free for ESLint and On request for Resolver.
Does ESLint or Resolver run on more platforms?
ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. Resolver runs on Web, iOS, Android.
Can I use ESLint for free?
Yes. ESLint has a free tier, so you can try it without paying. Resolver starts at On request.
What is ESLint best used for?
ESLint is most often used for statically analysing javascript and jsx to find problems before runtime, automatically fixing issues with syntax-aware rewrites, enforcing a consistent code style across a team, running as a ci step to block non-conforming code. Of those, statically analysing javascript and jsx to find problems before runtime and automatically fixing issues with syntax-aware rewrites are not what Resolver is typically brought in for.
What can ESLint do that Resolver cannot?
Resolver covers Incident management, Investigations, Enterprise risk management, Internal audit.

Answered from the vendors’ own pages

ESLint: Does ESLint automatically fix code issues?

Many problems ESLint finds can be automatically fixed via the --fix flag. ESLint fixes are syntax-aware so you won't experience errors introduced by traditional find-and-replace algorithms.

Source
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.

ESLint: How much does ESLint cost?

ESLint is completely free and open-source software maintained by the OpenJS Foundation. The project accepts voluntary donations from sponsors.

Source
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.

ESLint: Can I write custom ESLint rules?

Yes. You can develop custom rules that work alongside built-in functionality through ESLint's plugin system, allowing complete customization for your project needs.

Source
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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