Python Minifier / Beautifier / Unminify

Minify, compress or beautify Python instantly. Runs 100% in your browser — your code never leaves your device.

Input Python
Output Python

Python Formatter and Beautifier: Clean, Indent and Optimize Your Code Online

Messy indentation, inconsistent quotes and tangled one-liners make Python hard to read and harder to maintain. Our Python Formatter turns raw, copy-pasted or minified scripts into tidy, readable code in a single click. Paste your code, choose an action, and get clean output you can copy or download. It runs in your browser, needs no signup and costs nothing.

Python code before and after formattingLeft panel shows messy unindented Python code, right panel shows the same code cleanly indented after using the formatter.BeforeAfterdef add(a,b):return a+bclass User:def __init__(self,n):self.n=nif x>1:print(‘ok’)else:print(‘no’)def add(a, b):return a + bclass User:def __init__(self, n):self.n = nConsistent indentation, spacing and line breaks in one click
Example: messy Python code before and after using the formatter.

What Is a Python Code Beautifier?

A Python code beautifier rewrites your source so it follows consistent style rules: four-space indentation, spaces around operators, sensible line breaks and tidy blank lines. The logic never changes, only the layout. That matters in Python more than in most languages, because indentation is part of the syntax. A single misplaced tab can raise an IndentationError or, worse, silently change what your program does.

The tool follows the conventions of PEP 8, the official Python style guide, so the output matches what most teams, linters and code reviewers expect.

Three Tools in One: Beautify, Minify and Unminify

Beautify

Fixes indentation, spacing and line breaks so messy or inherited code becomes easy to read. Ideal before a code review, a commit or a tutorial snippet.

  • Normalizes indentation to four spaces
  • Cleans up spacing around operators and commas
  • Separates crowded one-liners onto readable lines

Minify

Strips comments, docstrings and extra whitespace to produce a compact version of your script. Useful for embedding code in a small space, shipping lighter files or sharing short snippets.

  • Removes comments and blank lines
  • Keeps the minimum indentation Python needs
  • Reduces file size for storage or transfer

Unminify

Takes compressed or hard-to-read Python and expands it back into a structured, readable layout, so you can understand, debug or reuse code you did not write.

  • Restores line breaks and indentation
  • Makes compact code easy to follow
  • Helps when inspecting third-party snippets

How to Format Python Code Online

  1. Paste your code into the input box, or upload a .py file.
  2. Pick an action: Beautify, Minify or Unminify.
  3. Choose your options, such as indent size, if you want something different from the default.
  4. Copy or download the result and drop it straight into your project.
Four steps to format Python code: paste, choose action, set options, copy result1Paste code2Choose action3Set options4Copy result
The whole process takes a few seconds.

Why Use an Online Python Code Formatter?

  • Readable code: consistent layout makes bugs easier to spot and onboarding easier for teammates.
  • Fewer indentation errors: mixed tabs and spaces are fixed automatically, which prevents common runtime failures.
  • Faster reviews: reviewers can focus on logic instead of arguing about style.
  • Nothing to install: no editor plugin, virtual environment or command-line setup is needed.
  • Works anywhere: use it on a laptop, tablet or phone whenever you need a quick cleanup.

Before and After: A Quick Example

Messy input

def calc(a,b,op):
  if op=='add':return a+b
  elif op=='sub':return a-b
  else:return None

Formatted output

def calc(a, b, op):
    if op == 'add':
        return a + b
    elif op == 'sub':
        return a - b
    else:
        return None

Who Is This Tool For?

  • Students and beginners who want to see what clean, PEP 8 style code looks like.
  • Developers tidying snippets before a pull request or a documentation page.
  • Data analysts and scientists cleaning notebook code before sharing it.
  • Bloggers and educators who publish code examples and need them readable.
  • WordPress and web developers who run Python scripts for automation, scraping or backend tasks alongside their sites.

Tips for Cleaner Python Code

  • Use four spaces per indentation level and never mix tabs with spaces.
  • Keep lines under about 79 characters where practical.
  • Use descriptive names for variables and functions.
  • Add a docstring to every function and class, and keep comments for the “why”.
  • Format code before you commit, not after a review comment asks for it.

Need the same cleanup for other languages? Try our HTML formatter, CSS minifier and beautifier or JavaScript minifier and beautifier.

Frequently Asked Questions

Is this Python formatter free to use?

Yes. You can format, minify and unminify Python code online for free, with no account required.

Will formatting change how my code runs?

No. The beautifier only adjusts whitespace and layout. Your logic, variable names and output stay the same.

Does the tool follow PEP 8?

The default output follows PEP 8 conventions for indentation, spacing and line breaks, so it fits common team and linter standards.

Can I fix mixed tabs and spaces?

Yes. Mixed indentation is normalized to a single consistent style, which resolves most IndentationError problems caused by copy-pasting.

What is the difference between minify and unminify?

Minify removes comments and extra whitespace to make the code compact. Unminify does the opposite and expands compact code back into a readable layout.

Is my code stored or shared?

Your code is processed only to produce the result. We recommend avoiding passwords, API keys or other secrets in any online tool.

Can I use it on my phone?

Yes. The tool is responsive and works on desktop, tablet and mobile browsers.

Format Your Python Code Now

Stop fixing indentation by hand. Paste your script into the tool above, pick Beautify, Minify or Unminify, and get clean, consistent Python in seconds.