Comparison

Black vs ESLint

No clear leader: ESLint (76.0) and Black (73.9) 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.
Black74
ESLint76
Score
vioscaleAI score
Black74 / 100high · 77%
ESLint76 / 100high · 78%
Pricing
Free tier
Black✓
ESLint✓
Model
Blackfree
Price level
Blackfree
ESLintfree
Transparent
Black✓
ESLint–
Integrations
Count
Black5
ESLint2
Adoption
Dependent repos
Black105,588
ESLint1,569,244
Github stars
Black41,918
ESLint27,559
Package downloads weekly
Activity
Commits last 30d
Black75
ESLint44
Release
Cadence days
Black31
ESLint13
History
ESLint20 items
License
Spdx
BlackMIT
ESLintMIT
Language
Primary
BlackPython
Content
Faq
Black6 items
ESLint5 items

Capabilities

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

Core
Function
BlackFormatter
ESLintLinter + formatter
Language scope
BlackSingle-language
ESLintSingle-language
Implementation language
BlackPython
ESLintJavaScript
Capability
Autofix
Black✓
ESLint✓
Config
Config model
BlackZero-config
ESLintConfig file
Extensibility
Custom rules
Black✗
ESLint✓
Deployment
Deployment
BlackBoth
ESLintCLI-local
Delivery
Editor integration
Black✓
ESLint✓
CI / VCS gating
Black✓
ESLint✓
Insight
Code metrics
Black✗
ESLint-
Performance
Incremental / monorepo aware
Black✗
ESLint-
Licensing
Open-source
BlackOSS
ESLintOSS
Commercial
Pricing model
BlackFree
ESLintFree

What each one is

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

Black

A Python code formatter that automatically reformats entire files to enforce consistent styling. It produces minimal diffs to accelerate code review and ensures uniform appearance across projects.

Independently observed

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.

Independently observed

Pricing

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

Black

FreeFree tier

Free and open source

as of verify ↗

ESLint

Open sourceFree tier

Free open source

  • Open SourceFree
    • Find issues in JavaScript code
    • Automatically fix problems
    • Custom parsers
    • Custom rules
    • Text editor integration
    • +1 more
as of verify ↗

Platform & deployment

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

Platforms
Windows
Black✓
ESLint✗
Linux
Black✓
ESLint✗
CLI
Black✓
ESLint✓
Deployment
Self-hosted
Black✓
ESLint✓

Integrations

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

Black

11 total
  • Neovim
  • conform.nvim
  • ALE
  • SublimeText
  • Pre-commit
  • Jupyter Notebooks
  • blacken-docs
  • blackdoc
  • Vim
  • Visual Studio Code
  • GitHub Actions
Independently observed

ESLint

2 total
  • eslint-plugin-react
  • eslint-plugin-unicorn
Independently observed
Still deciding?

Black or ESLint: 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.