Black

The uncompromising Python code formatter.

EstablishedOpen SourceLow lock-in
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Pricing

See website

Flat rate

Adoption

→Stable

License

Open Source

Data freshness

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Overview

What is Black?

Black is an uncompromising Python code formatter that automatically reformats your code to adhere strictly to the PEP 8 style guide, making it more readable and consistent.

Key differentiator

“Black stands out as an uncompromising Python code formatter that strictly adheres to PEP 8, offering a no-frills approach to ensuring consistent and readable code.”

Capability profile

Strength Radar

Automatically fo…Uncompromising s…Highly configura…

Honest assessment

Strengths & Weaknesses

↑ Strengths

Automatically formats Python code to PEP 8 standards.

Uncompromising style that enforces a single way of formatting.

Highly configurable with options for line length and string quotes.

Fit analysis

Who is it for?

✓ Best for

Teams working on large-scale Python projects who need strict adherence to PEP 8.

Developers looking for a no-frills, automated code formatter that enforces consistency.

✕ Not a fit for

Projects requiring custom formatting rules not supported by Black.

Developers preferring more flexible or customizable formatters.

Cost structure

Pricing

Free Tier

None

Starts at

See website

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Alternatives

yapf

Next step

Get Started with Black

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →