Python Code Formatter

Python Code Formatter

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.

How to Use

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.

Features

• 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