Comparison

Biome vs Black

On the evidence we track, Black 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 formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Biome68
★Black74
Score
vioscaleAI score
Biome68 / 100medium · 68%
Black74 / 100high · 77%
Pricing
Free tier
Biome✓
Black✓
Model
Blackfree
Price level
Biomelow
Blackfree
Transparent
Biome✗
Black✓
Integrations
Count
Biome3
Black5
Adoption
Dependent repos
Biome587
Black105,588
Github stars
Biome25,952
Black41,918
Package downloads weekly
Activity
Commits last 30d
Biome100
Black75
Release
Cadence days
Biome6
Black31
History
License
Spdx
BlackMIT
Language
Primary
BiomeRust
BlackPython
Market
Availability
Black–
Content
Faq
Biome5 items
Black6 items

Capabilities

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

Core
Function
BiomeLinter + formatter
BlackFormatter
Language scope
BiomeMulti-language
BlackSingle-language
Implementation language
BiomeRust
BlackPython
Capability
Autofix
Biome✓
Black✓
Config
Config model
BiomeZero-config
BlackZero-config
Extensibility
Custom rules
Biome-
Black✗
Deployment
Deployment
BiomeCLI-local
BlackBoth
Delivery
Editor integration
Biome✓
Black✓
CI / VCS gating
Biome✓
Black✓
Insight
Code metrics
Biome-
Black✗
Performance
Incremental / monorepo aware
Biome-
Black✗
Licensing
Open-source
BiomeOSS
BlackOSS
Commercial
Pricing model
BiomeFree
BlackFree

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

Black

Leader

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

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 ↗

Black

Leader
FreeFree 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
Windows
Biome✗
Black✓
Linux
Biome✗
Black✓
CLI
Biome✓
Black✓
Deployment
Self-hosted
Biome✓
Black✓

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

Black

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

Biome or Black: 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.