Comparison

flake8 vs Ruff

On the evidence we track, Ruff leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
flake864
★Ruff73
Score
vioscaleAI score
flake864 / 100medium · 66%
Ruff73 / 100medium · 68%
Pricing
Free tier
flake8✓
Ruff–
Model
flake8free
Price level
flake8free
Ruff–
Transparent
flake8✓
Ruff–
Integrations
Count
flake83
Ruff6
Adoption
Dependent repos
flake8153,063
Ruff5,870
Github stars
flake83,828
Ruff49,914
Package downloads weekly
Activity
Commits last 30d
flake821
Ruff100
Release
Cadence days
flake8–
Ruff7
History
flake8–
License
Spdx
flake8MIT
RuffMIT
Language
Primary
flake8Python
RuffRust
Market
Content
Faq
flake86 items

Capabilities

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

Core
Function
flake8Linter
RuffLinter
Language scope
flake8Single-language
RuffSingle-language
Implementation language
flake8Python
RuffRust
Capability
Autofix
flake8✗
Ruff✓
Config
Config model
flake8Config file
Ruff-
Extensibility
Custom rules
flake8✓
Ruff-
Deployment
Deployment
flake8CLI-local
RuffCLI-local
Delivery
Editor integration
flake8✓
Ruff✓
CI / VCS gating
flake8✓
Ruff-
Insight
Code metrics
flake8✓
Ruff-
Performance
Incremental / monorepo aware
flake8-
Ruff✓
Licensing
Open-source
flake8OSS
RuffOSS
Commercial
Pricing model
flake8Free
RuffFree

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

Ruff

Leader

A tool for analyzing and formatting Python code, designed to be fast and efficient through Rust implementation, with support across multiple platforms.

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

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
flake8✗
Ruff✓
Windows
flake8✗
Ruff✓
Linux
flake8✗
Ruff✓
CLI
flake8✓
Ruff✓
Deployment
Self-hosted
flake8✓
Ruff✓

Integrations

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

In common (2)
  • pycodestyle
  • pyflakes

flake8

4 total - 2 not shared
  • mccabe
  • pre-commit
Independently observed

Ruff

Leader
7 total - 5 not shared
  • Flake8
  • isort
  • Autoflake
  • Pylint
  • Visual Studio Code
Independently observed
Still deciding?

flake8 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.