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Software Development · head to head

Codacy vs ESLint

Codacy logo

Codacy

Software Development

Automated code review platform for code quality and security scanning.

From
Free
Rated
-
Full reviewWebsite
ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Codacy team plan is capped at 30 developers before Business pricing is required.; ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome

Where they differ

Only the attributes on which Codacy and ESLint actually diverge.

Attributes where Codacy and ESLint differ
AttributeCodacyESLint
Pricing modelfreemiumUnknown
Platformsweb, apiBrowser-based JavaScript, Node.js, Any JavaScript environment
CategorySoftware DevelopmentDeveloper Tools
FoundedUnknown2019

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 Codacy

  • Automated code review
  • Security scanning
  • IDE plugin
  • Merge gates
  • Coverage reports
  • Jira and Slack integration

Only in ESLint

Nothing recorded that Codacy does not also cover.

What people use each for

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

Codacy

  • Automating pull request code reviewnot ESLint
  • Enforcing shared coding standards across teamsnot ESLint
  • Scanning for secrets and vulnerable dependenciesnot ESLint
  • Tracking test coverage over timenot ESLint
  • Blocking merges that fail quality gatesnot ESLint

ESLint

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

Where each one falls short

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

Codacy

  • Team plan is capped at 30 developers before Business pricing is required.
  • Advanced security features like DAST and container scanning are Business-tier only.
  • Business plan pricing is not published and requires contacting sales.
  • Annual plans require 30 days' notice to modify or cancel before renewal.

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

Pricing, plan by plan

Codacy

Free
  • DeveloperFree
    • IDE plugin with real-time feedback
    • Security and quality scans
    • 38 languages supported
  • Team$18/month
    • Up to 30 developers
    • Up to 100 private repos, unlimited lines of code
    • AI Reviewer
  • Business$undefined/month
    • Unlimited private projects
    • Priority scan queue
    • DAST and container scanning

ESLint

Free

No published plan breakdown. See the ESLint review.

Which should you pick?

Choose Codacy if

  • You need automated code review.
  • You want to start without paying.
  • You work on web, api.
  • You also want security scanning.
Codacy review

Choose ESLint if

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

Questions people ask

Is Codacy or ESLint better?
Neither clearly leads. Codacy starts at Free and ESLint at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Codacy or ESLint?
Codacy starts at Free and ESLint at Free.
Does Codacy or ESLint run on more platforms?
Codacy runs on web, api. ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment.
Can I use Codacy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Codacy best used for?
Codacy is most often used for automating pull request code review, enforcing shared coding standards across teams, scanning for secrets and vulnerable dependencies, tracking test coverage over time. Of those, automating pull request code review and enforcing shared coding standards across teams are not what ESLint is typically brought in for.
What can Codacy do that ESLint cannot?
Codacy covers Automated code review, Security scanning, IDE plugin, Merge gates.

Answered from the vendors’ own pages

Codacy: What does Codacy cost?

The Developer plan is free forever; Team starts at $18/dev/month billed yearly (or $21 monthly); Business is custom-priced for enterprise requirements.

Source
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
Codacy: Is there a free plan, and what are its limits?

Yes, the Developer plan is free forever for individuals, including IDE feedback, scan-as-you-type, and security and quality scans across 38 languages.

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
Codacy: Can I try Codacy before paying?

Codacy offers a 14-day free trial with full platform access and no credit card required.

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
Codacy: What does it integrate with?

Codacy integrates with GitHub, Bitbucket, and GitLab for cloud-hosted scans, plus Jira and Slack for team notifications.

Source
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