Ruff vs Stylelint

Ruff9.2Visit Stylelint8.8Visit

Higher score Ruff #2 in Linters 9.2/10 Free plan Free plan✓ 3 of 4 features Visit Ruff

vs

Stylelint #4 in Linters 8.8/10 Free plan Free plan✓ 3 of 4 features Visit Stylelint

• Ruff fits best

  Python teams wanting linting and formatting together

• Stylelint fits best

  CSS and CSS-like language teams

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Side by side

Feature	Ruff 9.2/10 Visit ↗	Stylelint 8.8/10 Visit ↗
At a glance
Editor score	9.2	8.8
Ranking	#2 in Linters	#4 in Linters
Best for	Python teams wanting linting and formatting together	CSS and CSS-like language teams
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Self-hosted	Self-hosted, Browser extension
Platforms	Web, Windows, macOS, Linux	Linux, macOS, Windows
Support	Docs	Docs, Community
Integrations	10 integrations	9 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Ruff 3/4 · Stylelint 3/4
Autofix	✓	✓
Custom rules	—	✓ (best)
Security rules	✓ (best)	—
CI support	✓	✓
Specs
Languages supported	1	8 (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	More than 100 built-in rules with autofix for supported problems Plugins, shareable configs, and custom syntax support Node.js, PostCSS, editor, and CI integration options
Cons	Focused on Python rather than multiple languages Custom lint rules are not supported Third-party plugins are not supported	Specialized around CSS and CSS-like languages Platform coverage centers on API and self-hosted workflows Autofix applies only to supported problems
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 →	Stylelint is an open-source linter for CSS and CSS-like syntaxes. It checks for invalid or problematic constructs, unknown properties, naming violations, convention issues, and other rule-defined problems. Its audience is teams working… Read the review →

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

• Stylelint — where it wins

  • More than 100 built-in rules with autofix for supported problems
  • Plugins, shareable configs, and custom syntax support
  • Node.js, PostCSS, editor, and CI integration options

  Where it doesn't

  • Specialized around CSS and CSS-like languages
  • Platform coverage centers on API and self-hosted workflows
  • Autofix applies only to supported problems

• Ruff9.2/10 · Free plan

  Free Python linting and formatting with more than 900 built-in rules.

  Visit RuffFull verdict →
• Stylelint8.8/10 · Free plan

  A capable, extensible CSS linter for teams that want configurable rules and CI support.

  Visit StylelintFull verdict →