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Developer Tools · head to head

ESLint vs Transmit Security

ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Free plan
Yes
Full reviewWebsite
Transmit Security logo

Transmit Security

Cybersecurity

Customer identity platform built around passwordless and fraud signals

From
On request
Free plan
No
Full reviewWebsite

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; Transmit Security pricing is not published, so it cannot be compared early against competitors that post per monthly active user rates, and the eventual quote often mixes per-user and per-transaction units.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which ESLint and Transmit Security actually diverge.

Attributes where ESLint and Transmit Security differ
AttributeESLintTransmit Security
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 Transmit Security does not also cover.

Only in Transmit Security

  • Passwordless authentication
  • Detection and response
  • Identity verification
  • Orchestration
  • Account recovery
  • Bot and automation detection
  • Composable APIs

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 Transmit Security
  • Automatically fixing issues with syntax-aware rewritesnot Transmit Security
  • Enforcing a consistent code style across a teamnot Transmit Security
  • Running as a CI step to block non-conforming codenot Transmit Security
  • Writing custom rules for project-specific conventionsnot Transmit Security

Transmit Security

  • A bank moving a consumer base off passwords to passkeys without losing customers at the migration stepnot ESLint
  • An insurer whose account recovery flow is the main account takeover route and needs risk scoring inside itnot ESLint
  • A retailer that wants bot detection at login rather than only at checkoutnot ESLint
  • An organisation replacing an in-house customer login system that has become an unfunded engineering liabilitynot 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

Transmit Security

  • Pricing is not published, so it cannot be compared early against competitors that post per monthly active user rates, and the eventual quote often mixes per-user and per-transaction units.
  • Migrating a live consumer identity base is a high risk project, and credential migration constraints mean some users must re-register, which shows up as measurable churn.
  • The vendor is smaller than the identity incumbents, so the partner and systems integrator pool is thinner and staffing a large programme is harder.
  • Workforce identity is not the focus, so an organisation wanting one vendor for employees and customers will still run two platforms.
  • The fraud detection value depends on traffic volume feeding the models, so a smaller deployment gets less benefit from exactly the capability that justified choosing it over a plain identity provider.

Pricing, plan by plan

ESLint

Free

No published plan breakdown. See the ESLint review.

Transmit Security

On request
  • Transmit Security Platform$undefined/year
    • Priced per monthly active user or per transaction by service
    • Services licensed individually or as a platform
    • Free developer tier for evaluation

Which should you pick?

Choose ESLint if

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

Choose Transmit Security if

  • You need passwordless authentication.
  • You work on Web, iOS, Android.
  • You also want detection and response.
Transmit Security review

Questions people ask

Is ESLint or Transmit Security better?
Neither clearly leads. ESLint starts at Free and Transmit Security at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESLint or Transmit Security?
ESLint has a free tier; the other does not. Paid plans start at Free for ESLint and On request for Transmit Security.
Does ESLint or Transmit Security run on more platforms?
ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. Transmit Security runs on Web, iOS, Android.
Can I use ESLint for free?
Yes. ESLint has a free tier, so you can try it without paying. Transmit Security 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 Transmit Security is typically brought in for.
What can ESLint do that Transmit Security cannot?
Transmit Security covers Passwordless authentication, Detection and response, Identity verification, Orchestration.

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
Transmit Security: Do we have to replace our existing identity provider?

No. The services are composable, so detection and response or verification can be adopted alongside an existing provider such as Okta or Entra ID.

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
Transmit Security: Is fraud detection an extra licence?

It is a separate service, but it is designed to run inside the authentication flow rather than as a bolted-on second vendor. Confirm which services are in your quote.

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
Transmit Security: Is there a way to try it?

Yes, a free developer tier exists for evaluation, though production use is an enterprise agreement.

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