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Head-to-head · Linters

Ruff vs Biome

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Ruff #2 in Linters 9.2/10 Free plan Free plan✓ 3 of 4 features Visit Ruff
Biome #8 in Linters 8.4/10 Free plan Free plan✓ 4 of 4 features Visit Biome

Ruff leads on 0 checks, Biome on 2, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreRuff · 9.2/10
  • Free planboth
  • Most featuresBiome · 4 of 4

Ruff scores higher on our rubric for linters: 9.2 against 8.4 out of 10; our editors rank them #2 and #8.

Biome leads on languages supported: 17 versus 1. Biome offers custom rules; Ruff doesn't.

Ruff is the better fit for python teams wanting linting and formatting together. Biome is the better fit for teams linting and formatting web code.

  • Ruff fits best

    Python teams wanting linting and formatting together

  • Biome fits best

    Teams linting and formatting web code

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Side by side

Feature Ruff 9.2/10 Visit ↗ Biome 8.4/10 Visit ↗
At a glance
Editor score 9.2 8.4
Ranking #2 in Linters #8 in Linters
Best for Python teams wanting linting and formatting together Teams linting and formatting web code
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Desktop
Platforms Web, Windows, macOS, Linux Windows, macOS, Linux
Support Docs Community, Docs
Integrations 10 integrations 5 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Ruff 3/4 · Biome 4/4
Autofix ✓ ✓
Custom rules — ✓ (best)
Security rules ✓ ✓
CI support ✓ ✓
Specs
Languages supported 1 17 (best)
IDE support Ide Ide
Our review
Pros
  • More than 900 built-in lint rules
  • Automatic fixes and built-in Python formatting
  • Editor, notebook, CI, pre-commit, and Docker integrations
  • Combines linting, formatting, autofixes, import sorting, and CI checks
  • Supports editor workflows through VS Code, IntelliJ, and Zed integrations
  • Offers custom diagnostics, configurable rules, Docker images, and standalone binaries
Cons
  • Focused on Python rather than multiple languages
  • Custom lint rules are not supported
  • Third-party plugins are not supported
  • Some listed languages are experimental or in progress
  • Not all listed language entries currently support linting
  • Its focus is web projects rather than general-purpose codebases
Our verdict

Ruff is an open-source Python linter and code formatter for developers and teams. It checks Python files with the ruff check command, automatically fixes supported violations, and formats Python code. Its focus suits Python projects that…

Read the review →

Biome is an open-source toolchain for web projects, combining a formatter, linter, command-line interface, and Language Server Protocol integration. It is aimed at developers and teams maintaining modern web applications, with support for…

Read the review →
  1. RuffLinters 9.2Free plan
  2. BiomeLinters 8.4Free plan

Strengths and trade-offs

  • Ruff — where it wins

    • More than 900 built-in lint rules
    • Automatic fixes and built-in Python formatting
    • Editor, notebook, CI, pre-commit, and Docker integrations

    Where it doesn't

    • Focused on Python rather than multiple languages
    • Custom lint rules are not supported
    • Third-party plugins are not supported

  • Biome — where it wins

    • Combines linting, formatting, autofixes, import sorting, and CI checks
    • Supports editor workflows through VS Code, IntelliJ, and Zed integrations
    • Offers custom diagnostics, configurable rules, Docker images, and standalone binaries

    Where it doesn't

    • Some listed languages are experimental or in progress
    • Not all listed language entries currently support linting
    • Its focus is web projects rather than general-purpose codebases

More comparisons

All linters comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update