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ESLint vs Biome

ESLint and Biome both land on Worth it.

ESLint

eslint.org

Worth it
Confidence: Medium

Buy if your team writes JavaScript . ESLint is the free, default linter with a huge plugin ecosystem.

Read the full report

Biome

biomejs.dev

Worth it
Confidence: Medium

JS/TS teams wanting one free, fast tool instead of ESLint plus Prettier should adopt it . Ant Design and Astro already do.

Read the full report

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ESLint versus Biome
CompareESLintBiome
VerdictWorth itWorth it
Best forJavaScript/TypeScript dev teamsJS/TS web teams
Who it's not forNon-technical teams . nothing to lintESLint power users with custom plugin stacks
PrivacyNo known public vulnerabilities found in the sources reviewed.²No known CVEs against Biome core; one CVE hit a third-party MCP server, plus tracked npm audit warnings.
Support qualityCommunity OSS; no support data foundNo support evidence found
Public sentimentPractitioner sources overwhelmingly treat ESLint as the default JavaScript linter across tutorials, CI setups, and production stacks.³Developers on Reddit and YouTube praise Biome's speed and all-in-one design while debating whether it fully replaces ESLint and Prettier.12
Biggest gotchaFree, but real cost is engineer time: config, plugins, and major-version upgrade migrations.⁴Adopting Biome reformats your entire codebase . expect one big review-busting diff.14

Pick ESLint when

  • JavaScript/TypeScript dev teams
  • Open-source maintainers
  • CI/CD pipelines
  • Solo developers

When ESLint is not a fit

  • Non-technical teams . nothing to lint
  • No-code website builders
  • Teams shipping only non-JS languages
  • Buyers needing vendor SLAs or support contracts

Pick Biome when

  • JS/TS web teams
  • Teams consolidating ESLint + Prettier
  • Monorepos wanting fast checks
  • Projects wanting a single config file

When Biome is not a fit

  • ESLint power users with custom plugin stacks
  • Polyglot codebases beyond JavaScript/TypeScript
  • Enterprises needing vendor SLAs or paid support
  • Teams unwilling to reformat the whole codebase once

Sources

  1. ESLint official siteeslint.org
    official
  2. ESLint security pageeslint.org
    security
  3. Frontend Tools That Actually Reduce Bugsosintteam.blog
    review
  4. ESLint setup guide for Expo/React Nativezenn.dev
    review
  5. Configuring ESLint and Prettiermedium.com
    review
  6. How to skip linting at build timeitmustbecode.com
    review
  7. ESLint product library entryunderstandbusinesslikeai.com
    review
  8. Biome, toolchain of the web (official site)biomejs.dev
    official
  9. biomejs/biome on GitHubgithub.com
    official
  10. Who uses Biomebiomejs.dev
    official
  11. Biome adoption guide . LogRocketblog.logrocket.com
    review
  12. Biome is an awesome linter . Reddit r/reactjsreddit.com
    review
  13. [AskJS] How has your experience been with Biome.js? . Reddit r/javascriptreddit.com
    review
  14. Whats your take on Biome . Reddit r/nextjsreddit.com
    review
  15. Support alternative linters such as Biome . Next.js discussiongithub.com
    review
  16. I Will Never Use Prettier or ESLint Again . YouTubeyoutube.com
    review