ESLint vs Ruff
No clear leader: ESLint (76.0) and Ruff (72.5) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for code quality tools. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
ESLint
Open-source linter that uses abstract syntax tree analysis to detect JavaScript code issues and apply syntax-aware fixes, with extensive customization through custom rules and parsers.
Ruff
A tool for analyzing and formatting Python code, designed to be fast and efficient through Rust implementation, with support across multiple platforms.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
ESLint
Free open source
- Open SourceFree
- Find issues in JavaScript code
- Automatically fix problems
- Custom parsers
- Custom rules
- Text editor integration
- +1 more
Ruff
Pricing not documented yet.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
ESLint
- eslint-plugin-react
- eslint-plugin-unicorn
Ruff
- Flake8
- isort
- Autoflake
- Pyflakes
- pycodestyle
- Pylint
- Visual Studio Code
ESLint or Ruff: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.