Comparison

Biome vs RuboCop

No clear leader: Biome (68.2) and RuboCop (63.9) 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.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Biome68
RuboCop64
Score
vioscaleAI score
Biome68 / 100medium · 68%
RuboCop64 / 100medium · 50%
Pricing
Free tier
Biome✓
RuboCop✓
Model
Price level
Biomelow
RuboCopfree
Transparent
Biome✗
RuboCop✓
Integrations
Count
Biome3
RuboCop14
Adoption
Dependent repos
Biome587
RuboCop115,529
Github stars
Biome25,952
RuboCop12,913
Package downloads weekly
RuboCop–
Activity
Commits last 30d
Biome100
RuboCop100
Release
Cadence days
Biome6
RuboCop16
History
RuboCop20 items
License
Spdx
RuboCopMIT
Language
Primary
BiomeRust
RuboCopRuby
Market
Availability
RuboCop–
Content
Faq
Biome5 items
RuboCop5 items

Capabilities

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

Core
Function
BiomeLinter + formatter
RuboCopLinter + formatter
Language scope
BiomeMulti-language
RuboCopSingle-language
Implementation language
BiomeRust
RuboCopRuby
Capability
Autofix
Biome✓
RuboCop✓
Config
Config model
BiomeZero-config
RuboCopConfig file
Extensibility
Custom rules
Biome-
RuboCop✓
Deployment
Deployment
BiomeCLI-local
RuboCopCLI-local
Delivery
Editor integration
Biome✓
RuboCop✓
CI / VCS gating
Biome✓
RuboCop✓
Insight
Code metrics
Biome-
RuboCop✓
Performance
Incremental / monorepo aware
Biome-
RuboCop-
Licensing
Open-source
BiomeOSS
RuboCopOSS
Commercial
Pricing model
BiomeFree
RuboCopFree

What each one is

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

Biome

An all-in-one code formatter and linter built with Rust that can format code, identify issues, and improve code quality with high performance and minimal setup required.

Independently observed

RuboCop

An open-source linter and formatter for Ruby that enforces the community style guide, identifies potential bugs, and can automatically correct many issues.

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

HybridFree tier

Open source with optional commercial support available

as of verify ↗

RuboCop

Open sourceFree tier

Free and open source

as of verify ↗

Platform & deployment

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

Platforms
CLI
Biome✓
RuboCop✓
Deployment
Self-hosted
Biome✓
RuboCop✓

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

RuboCop

19 total
  • rubocop-performance
  • rubocop-rails
  • rubocop-rspec
  • rubocop-minitest
  • rubocop-rake
  • rubocop-sequel
  • rubocop-thread_safety
  • rubocop-capybara
  • rubocop-factory_bot
  • rubocop-rspec_rails
  • rubocop-i18n
  • Eglot
  • Helix
  • Flycheck
  • VS Code
  • RubyMine
  • Emacs
  • Neovim
  • Zed
Independently observed
Still deciding?

Biome or RuboCop: 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.