Python Formatter
You can use this browser-based Python Formatter to clean up, compact, validate, lint, and convert your code in one place. This workspace brings five integrated modes together: a PEP 8-style formatter, a comment-stripping minifier, a syntax validator, a style linter, and a Python 2 to 3 converter. Simply paste your code, type it directly, or upload .py files from your computer to get started. Work comfortably during long sessions with the Dracula theme and keep track of your progress with real-time stats on file size and line counts. Everything happens locally in your browser, so your code never leaves your device.
Python Formatter
Clean up messy code with PEP 8-style indentation and your choice of indent sizes.
Python Minifier
Strip away comments and blank lines to make your code more compact while keeping its structure.
Python Validator
Find unmatched brackets, mixed indentation, and missing colons instantly.
Python Linter
Keep your code clean by checking for naming violations, long lines, and wildcard imports.
Py2 to Py3 Converter
Modernize legacy patterns like print statements and xrange for Python 3.
Online Python Formatter with PEP 8 Indentation
The editor uses CodeMirror and the Dracula color scheme to highlight Python keywords, strings, numbers, and decorators as you type. You will never lose track of your code structure thanks to automatic bracket matching for all your parentheses and braces. Keep your workspace tidy by folding away function bodies or class definitions to focus on the code you are currently editing. You can also adjust the indentation to 2, 4, or 8 spaces to match your team style guide or personal preference.
Upload Python Files Directly
Upload your Python files directly by clicking the button or dragging them into the editor area. The tool supports .py, .pyw, and .pyi formats, loading them instantly for formatting or validation. You can work on large scripts or modules without worrying about artificial file size limits.
Keyboard Shortcuts for Faster Editing
Work faster using keyboard shortcuts like Ctrl+/ for comments and the standard Ctrl+Z or Ctrl+Y for undo and redo. Customize your experience with toolbar controls for zoom, word wrap, and bulk code folding to match your preferred workflow.
Validate, Lint, and Convert Python Code in One Workspace
You can switch between formatting, validation, and linting with a single click in the toolbar. Your code stays put when you switch modes, letting you beautify, validate, and lint your work in a single, seamless session. The validator helps you find structural errors like missing colons or unmatched brackets. Use the linter to catch naming violations, long lines, or comparisons that should use the "is" keyword. If you are working with legacy code, the converter handles print statements, xrange, and other Python 2 patterns for you.
PEP 8 Linting with Rule Codes
Every linting issue includes a standard rule code, such as E501 for line length or N802 for function naming. Since these codes match tools like flake8, you can easily sync them with your team existing coding standards and CI pipeline rules.
Python 2 to Python 3 Migration Preview
You can preview all the changes made by the converter before you decide to apply them. Check every update from print statements to dictionary methods, then click Apply to update your code. Try the built-in sample to see how the migration workflow handles legacy syntax.
Free Python Formatter for Developers and Students
This toolkit provides everything you need to write, clean, and learn Python, whether you are a beginner or an expert. You do not need to install anything or create an account to start using the formatter, linter, and converter. Every feature is ready to use right away, and your exported files are always clean and free of any watermarks or branding. Your code stays private because everything happens locally in your browser, meaning sensitive logic and credentials never leave your device.
No Signup, No Limits, No Data Collection
You have full access to every feature the moment you land on the page, with no paywalls or usage limits. There are no premium tiers or restrictions on file size to slow you down. Once you close your browser tab, all your session data is wiped clean for your peace of mind.
Client-Side Processing for Complete Privacy
Security is a core feature, as all processing happens entirely within your browser. Since your snippets never touch a remote server, it is a safe choice for handling confidential scripts and proprietary business logic. This client-side approach ensures that your work remains your own.
Related Python and Developer Tools
Check out these other tools to help with your development workflow:
- Python Minifier: compact your code by stripping comments and blank lines
- Python Validator: find syntax errors and structural problems quickly
- Python Linter: check your code against standard PEP 8 style guides
- Python 2 to 3 Converter: modernize legacy code with ease
- JavaScript Editor: write, edit, format, and validate JavaScript code
- JSON Formatter: format and validate JSON data structures
- HTML Editor: write and edit HTML with syntax highlighting
- CSS Formatter: beautify and minify CSS stylesheets