Command-line tool

black

brew/black

Checked 25 Oct 2026, 21:09 UTC · Listing refreshed from Homebrew, winget, npm, Scoop and cargo; npm packages checked against OSV.dev

Python code formatter python hacktoberfest code formatter codeformatter pre-commit-hook autopep8 gofmt yapf

Website Source

At a glance

Type

Command-line tool

Install on

Windows, macOS, Linux

Last checked

25 Oct 2026, 21:09 UTC

Install it

Windows

pipx install black
winget install --id psf.black -e

macOS

brew install black
pipx install black

Linux

brew install black
pipx install black

Auto-format a file or entire directory

black path/to/file_or_directory

Format the code passed in as a string

black -c "code"

Show whether a file or a directory would have changes made to them if they were to be formatted

black --check path/to/file_or_directory

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