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Developer Tools · head to head

ESLint vs Snyk

ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Rated
-
Full reviewWebsite
Snyk logo

Snyk

Cybersecurity

Developer-first security platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; Snyk free plan has strict test limits across all modules: Open Source (200), Code (100), Infrastructure as Code (300), Container (100) tests per month

Where they differ

Only the attributes on which ESLint and Snyk actually diverge.

Attributes where ESLint and Snyk differ
AttributeESLintSnyk
Pricing modelUnknownfreemium
PlatformsBrowser-based JavaScript, Node.js, Any JavaScript environmentWeb, CLI, IDE integrations
CategoryDeveloper ToolsCybersecurity
Founded20192015

Identical on both: starting price (Free), free tier (Yes), 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 Snyk does not also cover.

Only in Snyk

  • Open source security
  • Code security (SAST)
  • Container security
  • IaC security
  • License compliance
  • Fix PRs
  • Priority scoring
  • Developer IDE integration

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

Snyk

  • Vulnerability scanningnot ESLint
  • Application securitynot ESLint
  • Infrastructure as Code securitynot ESLint
  • Container securitynot 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

Snyk

  • Free plan has strict test limits across all modules: Open Source (200), Code (100), Infrastructure as Code (300), Container (100) tests per month
  • Free and Team plans count only contributing developers making commits within 90 days; public contributions do not count
  • Enterprise plan requires custom pricing and sales contact

Pricing, plan by plan

ESLint

Free

No published plan breakdown. See the ESLint review.

Snyk

Free
  • FreeFree
    • SCA scanning
    • SAST scanning
    • IaC and Container scanning
  • Team$25/month
    • 1000 Code tests
    • 100 projects
    • Jira integration
  • Ignite$105/month
    • Unlimited tests
    • Unlimited projects
    • Custom security rules
  • Enterprise$null/custom
    • Zero-day prevention
    • Unified AppSec control
    • Full SDLC automation

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 Snyk if

  • You need open source security.
  • You want to start without paying.
  • You work on Web, CLI, IDE integrations.
  • You also want code security (sast).
Snyk review

Questions people ask

Is ESLint or Snyk better?
Neither clearly leads. ESLint starts at Free and Snyk at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESLint or Snyk?
ESLint starts at Free and Snyk at Free.
Does ESLint or Snyk run on more platforms?
ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. Snyk runs on Web, CLI, IDE integrations.
Can I use ESLint for free?
Both have a free tier, so you can try either at no cost before committing.
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 Snyk is typically brought in for.
What can ESLint do that Snyk cannot?
Snyk covers Open source security, Code security (SAST), Container security, IaC security.

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
Snyk: How much does Snyk cost?

Snyk offers a free plan with limited tests, Team plan at $25/month per contributing developer, Ignite at $1260/year, and custom Enterprise pricing. Contributing developers are those who made commits to private repos within the last 90 days.

Source
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
Snyk: What does Snyk's Team plan include?

The Team plan at $25/month includes 1000 Code tests, up to 100 projects, Jira integration, next business day support, and all features from the free plan including SCA, SAST, IaC and Container scanning.

Source
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
Snyk: Is there a free version of Snyk?

Yes, Snyk offers a free plan with full platform access including SCA, SAST, IaC and Container scanning. The free tier includes 200 Open Source tests, 100 Code tests, 300 IaC tests, 100 Container tests, and up to 5 projects.

Source
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