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ESLint vs JetBrains IntelliJ IDEA

ESLint logo

ESLint

Developer Tools

Find and fix problems in JavaScript code

From
Free
Free plan
Yes
Full reviewWebsite
JetBrains IntelliJ IDEA logo

JetBrains IntelliJ IDEA

Technology

The Leading Java and Kotlin IDE

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: ESLint slow performance on large codebases compared to newer tools like Oxlint and Biome; JetBrains IntelliJ IDEA high memory consumption and slower startup time compared to lightweight editors like Visual Studio Code
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ESLint and JetBrains IntelliJ IDEA actually diverge.

Attributes where ESLint and JetBrains IntelliJ IDEA differ
AttributeESLintJetBrains IntelliJ IDEA
PlatformsBrowser-based JavaScript, Node.js, Any JavaScript environmentmacOS, Windows, Linux
CategoryDeveloper ToolsTechnology
Founded20192000

Identical on both: starting price (Free), pricing model (Unknown), 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 JetBrains IntelliJ IDEA does not also cover.

Only in JetBrains IntelliJ IDEA

  • Smart code completion
  • Framework support
  • Refactoring tools
  • Debugging & profiling
  • Version control
  • Database tools
  • Build tools
  • Testing frameworks

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

JetBrains IntelliJ IDEA

  • Enterprise Java developmentnot ESLint
  • Spring applicationsnot ESLint
  • Android appsnot ESLint
  • Web applicationsnot ESLint
  • Microservicesnot 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

JetBrains IntelliJ IDEA

  • High memory consumption and slower startup time compared to lightweight editors like Visual Studio Code
  • Refactoring can sometimes increase code line count and doesn't effectively support all modern programming languages
  • Occasionally misses dependencies between files requiring full rebuilds for consistency
  • Expensive subscription costs for Ultimate edition compared to open-source alternatives like Eclipse
  • Not all class name references are updated reliably when using search and replace functionality

Pricing, plan by plan

ESLint

Free

No published plan breakdown. See the ESLint review.

JetBrains IntelliJ IDEA

Free
  • Community EditionFree
    • Java, Kotlin, Scala development
    • Python, Go, Rust, PHP, Ruby support
    • Spring Boot integration
  • Ultimate (Individual)$19.9/month
    • All Community Edition features
    • Advanced web development tools
    • JavaScript, TypeScript, React support
  • All Products Pack (Individual)$29.9/month
    • IntelliJ IDEA Ultimate
    • PyCharm Professional
    • WebStorm

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 JetBrains IntelliJ IDEA if

  • You need smart code completion.
  • You want to start without paying.
  • You work on macOS, Windows, Linux.
  • You also want framework support.
JetBrains IntelliJ IDEA review

Questions people ask

Is ESLint or JetBrains IntelliJ IDEA better?
Neither clearly leads. ESLint starts at Free and JetBrains IntelliJ IDEA at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESLint or JetBrains IntelliJ IDEA?
ESLint starts at Free and JetBrains IntelliJ IDEA at Free.
Does ESLint or JetBrains IntelliJ IDEA run on more platforms?
ESLint runs on Browser-based JavaScript, Node.js, Any JavaScript environment. JetBrains IntelliJ IDEA runs on macOS, Windows, Linux.
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 JetBrains IntelliJ IDEA is typically brought in for.
What can ESLint do that JetBrains IntelliJ IDEA cannot?
JetBrains IntelliJ IDEA covers Smart code completion, Framework support, Refactoring tools, Debugging & profiling.

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
JetBrains IntelliJ IDEA: Is there a free version of IntelliJ IDEA?

Yes, IntelliJ IDEA Community Edition is completely free for personal, educational, and commercial use. As of IntelliJ IDEA 2025.3, the Community Edition has been unified with Ultimate, maintaining all core functionality free including Java, Kotlin, Scala, Python, Go, Rust, PHP, and Ruby support.

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
JetBrains IntelliJ IDEA: What programming languages does IntelliJ IDEA support?

IntelliJ IDEA supports Java, Kotlin, Scala, Python, Go, Rust, PHP, Ruby, JavaScript, TypeScript, and more. The free Community Edition includes support for all major languages with new features in Spring, Jakarta EE, Thymeleaf, and other frameworks.

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
JetBrains IntelliJ IDEA: Can I use IntelliJ IDEA with Spring Boot?

Yes, IntelliJ IDEA has built-in Spring Boot integration including the Spring Initializr project wizard, automatic dependency management with Maven and Gradle, code inspections for Spring frameworks, and direct project creation from Spring Initializr.

Source
JetBrains IntelliJ IDEA: Does IntelliJ IDEA support Git version control?

Yes, IntelliJ IDEA includes comprehensive Git integration allowing users to create Git repositories, commit changes, push to GitHub, create and merge branches, resolve conflicts, and investigate file history directly from the IDE.

Source
JetBrains IntelliJ IDEA: How much does IntelliJ IDEA Ultimate cost?

IntelliJ IDEA Ultimate subscription starts at $19.90 per month for Individual plans or $29.90 for the All Products Pack. Long-term discounts apply: 20% off year 2 and 40% off year 3 and beyond, reducing the annual cost significantly for loyal users.

Source
JetBrains IntelliJ IDEA: What are the main differences between IntelliJ IDEA and Eclipse?

IntelliJ IDEA offers a cleaner UI and more powerful code assistance capabilities compared to Eclipse's more complex interface. IntelliJ provides better refactoring tools, superior code completion, and optimized performance, while Eclipse remains free and open-source with a larger plugin ecosystem.

Source
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