Free Online Python Code Beautifier

Paste your Python code and instantly format it to PEP 8 standards. Fix indentation, remove trailing whitespace, sort imports, and get a compliance score — all in your browser, no data leaves your machine.

Input 0 lines · 0 chars

Formatted Output

Lines: 0 Chars: 0 PEP 8 Score: —

Features

📏 PEP 8 Indentation

Automatically normalizes indentation to your preferred width (2, 4, or 8 spaces). Converts tabs and fixes inconsistent spacing so your code follows Python style conventions.

🧹 Whitespace Cleanup

Removes trailing whitespace from every line, normalizes line endings to LF, and strips unnecessary blank lines while preserving PEP 8-compliant spacing between top-level definitions.

📦 Import Sorting

Optionally sort import statements alphabetically and group them into standard library, third-party, and local imports. Detect and remove unused import statements automatically.

📊 Compliance Scoring

Get an approximate PEP 8 compliance score based on line length, indentation consistency, blank line usage, and whitespace hygiene. Identify issues at a glance.

Frequently Asked Questions

Is my code sent to any server?

No. All formatting happens entirely in your browser using JavaScript. Your code never leaves your machine — there is no backend, no API calls, and no data collection.

How accurate is the PEP 8 compliance score?

The score is an approximation based on checkable heuristics: line length adherence, consistent indentation, trailing whitespace, and blank-line conventions. It cannot catch all PEP 8 rules (such as naming conventions), but it covers the most common formatting issues.

Can I use this for large Python files?

Yes. The formatter runs entirely client-side and has no file size limit. However, very large files (tens of thousands of lines) may cause a brief UI pause. For most real-world files the formatting is instantaneous.

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