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Python コードフォーマッター

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Python コードフォーマッター

Format your Python code following Black and PEP 8 conventions. Paste your code, choose your preferred line length, and get clean, consistently styled output with import sorting and proper spacing.

使い方

Paste your Python code into the editor, select your preferred max line length (79, 88, or 120 characters), then click Format. Toggle the diff view to see exactly what changed. Copy the formatted result or download it as a .py file.

特徴

Black-Style Formatting – Double quotes, trailing commas, consistent spacing following Black conventions
PEP 8 Compliance – 4-space indentation, proper blank lines between functions and classes
Import Sorting – Alphabetical sorting with stdlib/third-party/local grouping (isort style)
Configurable Line Length – Choose 79, 88, or 120 character max width
Diff View – Toggle before/after comparison to see exactly what changed
Syntax Highlighting – Color-coded Python code in both input and output
Download as .py – Save formatted code directly as a Python file