Format Python code in your browser by normalizing indentation, operator spacing, blank lines, line endings, and trailing whitespace. The formatter preserves strings and comments, requires no installation, and keeps code on your device.
It performs deterministic whitespace and indentation cleanup without executing the code. Strings, comments, and triple-quoted blocks are protected before spacing rules run.
This is a browser-based formatting heuristic, not an AST-based replacement for Black or autopep8.
def add(a,b): print(a+b)
def add(a, b):
print(a + b)Paste the code, choose four-space indentation, and run the formatter. It cleans common whitespace issues locally in your browser.
Select 4 Spaces and format the code. Leading tab indentation is converted into four-space levels.
Python treats tabs and spaces as different indentation tokens. Mixing them can produce inconsistent block levels.
Keep Remove trailing whitespace enabled and run the formatter.
No. It handles common formatting rules but does not perform complete AST-based PEP 8 formatting.
| Analysis | Formatting heuristic |
|---|---|
| Protected regions | Strings and comments |
| Output | .py |
| Execution | Code is not executed |