Comparison

Black vs Prettier

On the evidence we track, Prettier leads this comparison with a composite score of 82/100. 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
Black73
Prettier82
Score
Vioscale score
Black73 / 100high · 78%updating
Prettier82 / 100high · 79%updating
Pricing
Free tier
Black
Prettier
Model
Price level
Blackfree
Prettierfree
Transparent
Black
Prettier
Integrations
Count
Black8
Prettier19
Adoption
Dependent repos
Black105,588
Prettier1,703,312
Github stars
Black41,816
Prettier52,212
Package downloads weekly
Activity
Commits last 30d
Black29
Prettier100
Release
Cadence days
Black31
Prettier3
History
Prettier20 items
License
Spdx
BlackMIT
PrettierMIT
Language
Primary
BlackPython
PrettierJavaScript
Market
Availability
Black

Capabilities

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

Core
Function
BlackFormatter
PrettierFormatter
Language scope
BlackSingle-language
PrettierMulti-language
Implementation language
BlackPython
PrettierJavaScript
Capability
Autofix
Black
Prettier
Config
Config model
BlackZero-config
PrettierConfig file
Extensibility
Custom rules
Black
Prettier
Deployment
Deployment
BlackBoth
Prettier-
Delivery
Editor integration
Black
Prettier
CI / VCS gating
Black
Prettier
Insight
Code metrics
Black
Prettier
Performance
Incremental / monorepo aware
Black
Prettier
Licensing
Open-source
BlackOSS
PrettierOSS
Commercial
Pricing model
BlackFree
PrettierFree

What each one is

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

Black

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

Prettier

Leader

Prettier is a code formatting tool that parses source code and reprints it with its own consistent style rules. It integrates with editors and CI systems to format code automatically on save or in version control workflows, reducing style-related code review discussions.

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

Open sourceFree tier

Free and open source (MIT licensed)

as of verify ↗

Prettier

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
Web
Black
Prettier
CLI
Black
Prettier
Deployment
Self-hosted
Black
Prettier

Integrations

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

In common (2)
  • Neovim
  • SublimeText

Black

8 total - 6 not shared
  • conform.nvim
  • ALE
  • Pre-commit
  • Jupyter Notebooks
  • blacken-docs
  • blackdoc
Independently observed

Prettier

Leader
8 total - 6 not shared
  • VS Code
  • WebStorm
  • Vim
  • Emacs
  • Visual Studio
  • Nova
Independently observed

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