Python Tools

Read a traceback, audit imports and type hints, pull out docstrings, parse and diff requirements, and convert between a Python literal and JSON — all without running any Python.

JSON to Python Dict Writes JSON out as a Python dict literal, with True, False, None and your choice of quotes.
Pip Freeze Diff Compares two pip freeze outputs and reports every package that was added, removed, upgraded or downgraded.
Python Dict to JSON Turns a Python literal into valid JSON and names every type that had to change on the way.
Python Docstring Extractor Pulls out every docstring in a module and shows which definitions are missing one.
Python Import Analyser Lists every import in a module, sorts them by origin, and counts how often each name is used.
Python Traceback Parser Turns a wall of traceback text into a table and points at the deepest frame that is your own code.
Python Type Hint Coverage Reports annotation coverage per function and names the parameters and returns that have none.
Requirements.txt Parser Breaks a requirements file into packages, extras, specifiers and markers, and flags the loose ones.
Processing happens locally in your browser. What you paste or load is processed by this page and is not uploaded to a server. Nothing is stored unless you use a control that says it stores something, and you can clear anything this site has kept from the privacy page.