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pycodestyle vs Flake8: catalog facts
pycodestyle	Flake8
Free Free and open source under the Expat license.	Free Free and open source under the MIT license.
Command line	Command line
Checks code against PEP 8 conventions Supports plugins and configurable checks	Checks individual Python files or directories Supports selecting and ignoring specific warnings
Checks style conventions rather than program behavior Requires Python	Requires a compatible Python installation Command-line interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.