Comparison

Biome vs Black

On the evidence we track, Black 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 formatsJSONMarkdownGraphQLor send Accept: application/json
Biome68
Black73
Score
Vioscale score
Biome68 / 100high · 77%
Black73 / 100high · 78%
Pricing
Free tier
Biome
Black
Model
Price level
Biomefree
Blackfree
Transparent
Biome
Black
Integrations
Count
Biome3
Black8
Adoption
Dependent repos
Biome587
Black105,588
Github stars
Biome25,652
Black41,816
Package downloads weekly
Activity
Commits last 30d
Biome100
Black29
Release
Cadence days
Biome7
Black31
History
License
Spdx
BlackMIT
Language
Primary
BiomeRust
BlackPython

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
Biome-
BlackPython
Capability
Autofix
Biome
Black
Config
Config model
Biome-
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

A fast command-line tool that formats and lints JavaScript, TypeScript, and web-related file types, combining formatter and linter functionality to streamline development workflows.

Independently observed

Black

Leader

An opinionated Python code formatter that automatically reformats code according to a standardized style. It produces minimal diffs for cleaner code review and reduces developer cognitive load by removing formatting decisions, allowing focus on code logic.

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

FreeFree tier
as of verify ↗

Black

Leader
Open sourceFree tier

Free and open source (MIT licensed)

as of verify ↗

Platform & deployment

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

Platforms
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
8 total
  • Neovim
  • conform.nvim
  • ALE
  • SublimeText
  • Pre-commit
  • Jupyter Notebooks
  • blacken-docs
  • blackdoc
Independently observed

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