Comparison

flake8 vs RuboCop

On the evidence we track, RuboCop leads this comparison with a composite score of 70/100. 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
flake858
RuboCop70
Score
Vioscale score
flake858 / 100medium · 66%
RuboCop70 / 100medium · 53%
Pricing
Free tier
flake8
RuboCop
Model
Price level
flake8free
RuboCopfree
Transparent
flake8
RuboCop
Integrations
Count
flake83
RuboCop14
Adoption
Dependent repos
flake8
RuboCop115,529
Github stars
flake83,819
RuboCop12,899
Package downloads weekly
RuboCop
Activity
Commits last 30d
flake84
RuboCop100
Release
Cadence days
flake8
RuboCop16
History
flake8
RuboCop20 items
License
Spdx
flake8MIT
RuboCopMIT
Language
Primary
flake8Python
RuboCopRuby

Capabilities

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

Core
Function
flake8Linter
RuboCopLinter + formatter
Language scope
flake8Single-language
RuboCopSingle-language
Implementation language
flake8Python
RuboCopRuby
Capability
Autofix
flake8
RuboCop
Config
Config model
flake8Config file
RuboCopConfig file
Extensibility
Custom rules
flake8
RuboCop
Deployment
Deployment
flake8CLI-local
RuboCopCLI-local
Delivery
Editor integration
flake8
RuboCop
CI / VCS gating
flake8
RuboCop-
Insight
Code metrics
flake8
RuboCop-
Performance
Incremental / monorepo aware
flake8-
RuboCop-
Licensing
Open-source
flake8OSS
RuboCopOSS
Commercial
Pricing model
flake8Free
RuboCopFree

What each one is

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

flake8

flake8 is an open-source Python linter that combines multiple style-checking tools to verify code compliance with PEP 8 and detect errors. It uses a plugin architecture for extensibility and is commonly integrated into development workflows and CI/CD pipelines.

Independently observed

RuboCop

Leader

RuboCop is an open-source Ruby linter and formatter that enforces code style based on the Ruby community style guide. It detects code quality issues and can automatically fix many of them, with extensive configuration options and extensibility through community plugins.

Independently observed

Pricing

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

flake8

Open sourceFree tier
as of verify ↗

RuboCop

Leader
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
flake8
RuboCop
Deployment
Self-hosted
flake8
RuboCop

Integrations

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

flake8

3 total
  • pycodestyle
  • pyflakes
  • mccabe
Independently observed

RuboCop

Leader
14 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
Independently observed

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