Comparison

Biome vs Ruff

On the evidence we track, Ruff leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Biome68
Ruff74
Score
Vioscale score
Biome68 / 100high · 77%updating
Ruff74 / 100high · 76%updating
Pricing
Free tier
Biome
Ruff
Model
Price level
Biomefree
Ruff
Integrations
Count
Biome3
Ruff6
Adoption
Dependent repos
Biome587
Ruff5,870
Github stars
Biome25,652
Ruff49,341
Package downloads weekly
Activity
Commits last 30d
Biome100
Ruff100
Release
Cadence days
Biome7
Ruff7
History
License
Spdx
RuffMIT
Language
Primary
BiomeRust
RuffRust
Market

Capabilities

Feature-by-feature on the axes that matter for code quality tools. “-” means undocumented, not absent.

Core
Function
BiomeLinter + formatter
RuffLinter
Language scope
BiomeMulti-language
RuffSingle-language
Implementation language
Biome-
RuffRust
Capability
Autofix
Biome
Ruff
Config
Config model
Biome-
Ruff-
Extensibility
Custom rules
Biome-
Ruff-
Deployment
Deployment
BiomeCLI-local
RuffCLI-local
Delivery
Editor integration
Biome
Ruff
CI / VCS gating
Biome
Ruff-
Insight
Code metrics
Biome-
Ruff-
Performance
Incremental / monorepo aware
Biome-
Ruff
Licensing
Open-source
BiomeOSS
RuffOSS
Commercial
Pricing model
BiomeFree
RuffFree

What each one is

The product in its own terms, so the numbers below have context.

Biome

A fast command-line tool that formats and lints JavaScript, TypeScript, and web-related file types, combining formatter and linter functionality to streamline development workflows.

Independently observed

Ruff

Leader

A fast Python linter built in Rust that consolidates multiple linting tools into a single interface. It supports over 500 rules, provides automated fixes for common issues, and runs significantly faster than traditional Python linters on even very large codebases.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Biome

FreeFree tier
as of verify ↗

Ruff

Leader

Pricing not documented yet.

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
macOS
Biome
Ruff
Windows
Biome
Ruff
Linux
Biome
Ruff
CLI
Biome
Ruff
Deployment
Self-hosted
Biome
Ruff

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Biome

3 total
  • ESLint
  • TypeScript ESLint
  • Prettier
Independently observed

Ruff

Leader
6 total
  • Flake8
  • isort
  • Autoflake
  • Pyflakes
  • pycodestyle
  • Pylint
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.