Developer Tools · head to head
ESLint vs TrustArc
TrustArc
Cybersecurity
Privacy management platform with regulatory research and the TRUSTe certification programme
- 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; TrustArc the software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which ESLint and TrustArc actually diverge.
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 TrustArc does not also cover.
Only in TrustArc
- Nymity Research
- TRUSTe certification
- Consent and preference management
- Privacy assessments
- Data inventory and mapping
- Individual rights requests
- Cookie consent manager
- Privacy programme benchmarking
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 TrustArc
- Automatically fixing issues with syntax-aware rewritesnot TrustArc
- Enforcing a consistent code style across a teamnot TrustArc
- Running as a CI step to block non-conforming codenot TrustArc
- Writing custom rules for project-specific conventionsnot TrustArc
TrustArc
- A consumer brand that needs an independent privacy seal on its website because enterprise customers or app stores ask for third-party verificationnot ESLint
- A multinational privacy team that needs a maintained answer to what a given jurisdiction requires without retaining outside counsel for every questionnot ESLint
- An organisation running DPIAs at volume that wants templates tied to a maintained regulatory library rather than to a consultant word documentnot ESLint
- A privacy programme being audited that needs documented maturity benchmarking against a recognised framework of programme activitiesnot 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
TrustArc
- The software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
- The integration catalogue is smaller than the market leader, which means more of the data inventory is maintained by hand and drifts out of date between reviews.
- Certification services are sold separately from the platform subscription, so the seal that is often the reason for choosing TrustArc is an extra line item and an extra annual renewal.
- Reported contract values vary enormously by module mix and organisation size, and the absence of published pricing means smaller buyers have no anchor and routinely discover the entry price is higher than expected.
- TrustArc stays inside privacy, so organisations that later want third-party risk, security compliance or ethics reporting on the same platform will be running a second vendor anyway.
Pricing, plan by plan
ESLint
FreeNo published plan breakdown. See the ESLint review.
TrustArc
On request- TrustArc Privacy Platform$undefined/year
- Quoted by module, entity count and data volume
- TRUSTe certification and assessment services priced separately from platform subscription
- Nymity Research licensed as a separate module
Which should you pick?
Choose ESLint if
- You want to start without paying.
- You work on Browser-based JavaScript, Node.js, Any JavaScript environment.
Questions people ask
- Is ESLint or TrustArc better?
- Neither clearly leads. ESLint starts at Free and TrustArc at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, ESLint or TrustArc?
- ESLint has a free tier; the other does not. Paid plans start at Free for ESLint and On request for TrustArc.
- Does ESLint or TrustArc run on more platforms?
- ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. TrustArc runs on Web.
- Can I use ESLint for free?
- Yes. ESLint has a free tier, so you can try it without paying. TrustArc 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 TrustArc is typically brought in for.
- What can ESLint do that TrustArc cannot?
- TrustArc covers Nymity Research, TRUSTe certification, Consent and preference management, Privacy assessments.
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.
SourceTrustArc: What does TrustArc have that OneTrust does not?
Nymity Research, a maintained regulatory intelligence library acquired in 2019, and the TRUSTe third-party certification and seal programme.
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.
SourceTrustArc: How much does TrustArc cost?
Not published. Reported enterprise agreements range widely depending on modules and organisation size, and certification services are quoted on top of the platform subscription.
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.
SourceTrustArc: Is TRUSTe the same company?
Yes. TrustArc is the renamed TRUSTe business and still operates the TRUSTe certification programme as a subsidiary.
TrustArc: Does it handle cookie consent for Europe?
Yes, it includes a consent manager with scanning and banner delivery, though pure-play consent vendors are cheaper if that is all you need.
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