Python Beautifier
Normalize Python indentation — convert tabs to spaces, change indent size, and remove trailing whitespace.
Last updated: May 29, 2026
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Buy me a coffeeWhat is Python Beautifier?
Python Beautifier normalizes indentation in Python source files. Because Python uses indentation as syntax, the tool detects the existing indentation unit (tabs or spaces, and how many) and remaps every line to your chosen style: 2 spaces, 4 spaces (PEP 8 standard), or tabs. Triple-quoted strings are preserved verbatim to avoid altering multiline literals. It is intentionally conservative — it only adjusts whitespace and never rewrites expressions.
How to Use Python Beautifier
Paste Python code with inconsistent or unwanted indentation.
Choose your target indentation style.
Click Format.
Review the normalized output.
Copy or download the .py file.
Common Use Cases
- Converting tab-indented Python scripts to 4-space PEP 8 style.
- Normalizing indentation when pasting Python from different editors.
- Shrinking 4-space indentation to 2 spaces for compact documentation snippets.
- Cleaning up Python examples copied from websites that mix tabs and spaces.
Example Input and Output
Inconsistent indentation (tabs + 8 spaces) is normalized to 4 spaces.
def greet(name):
if name:
print("Hello, " + name)
else:
print("Hello!")def greet(name):
if name:
print("Hello, " + name)
else:
print("Hello!")Privacy
Python code is formatted locally in the browser and is not uploaded.