Password Strength Analyzer & Custom Wordlist Generator

A Python CLI/GUI tool that scores password strength (zxcvbn fallback to heuristic) and produces focused attack wordlists from personal inputs, leetspeak patterns, separators, and year suffixes.

Quick start

1. Install dependencies:

   python -m pip install -r requirements.txt

2. (Optional) Download NLTK data for lemmatization:

   python - <<'PY'
   import nltk
   nltk.download('wordnet')
   PY

CLI usage

Analyze a password only:

python password_tool.py --password "S3cureP@ss!"

Generate a custom wordlist:

python password_tool.py --inputs alice fluffy 1996 --years 1990-1996,2024 --wordlist out.txt

Analyze and generate at once:

python password_tool.py --password "P@ssw0rd" --inputs john soccer 2010 --wordlist john.txt

Key flags:

• --inputs: space-separated personal terms (names, pets, hobbies, dates).
• --years: ranges/lists, e.g., 1990-1995,2024 (defaults to current year +/- 1).
• --separators: separators used when combining tokens (default: none, _, -, .).
• --no-leet: disable leetspeak variants.
• --max-size: cap wordlist entries (default 50k).
• --gui: open Tkinter GUI.

Output wordlists are plain .txt compatible with common cracking tools.

GUI usage

Run:

python password_tool.py --gui

Enter a password to score and supply comma-separated inputs plus a year pattern to save a wordlist.

Notes

• zxcvbn yields richer feedback; if absent, a heuristic score/entropy is used.
• Wordlists are deduplicated and truncated to --max-size to stay manageable.