🔐 Cryptic / Password Strength Checker
nullbreachO is a simple, transparent tool that helps users evaluate how strong their passwords are.
It uses Shannon entropy to measure unpredictability, and checks for basic security benchmarks like:
- Length
- Use of uppercase letters
- Numbers
- Special characters
The goal is to give people a clearer sense of how secure their passwords really are; and how to improve them.
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Analyzes password composition
Checks for:- Length
- Uppercase and lowercase letters
- Numbers
- Special characters
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Calculates Shannon entropy
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Gives clear, respectful advice to help users improve weak passwords
- Python 3.6 or higher
- No external libraries needed
- Flask library
- Requests in Flask
Most people don’t get clear feedback on their passwords.
nullbreachO is designed to be honest, helpful, and easy to understand—whether you're creating a new password or checking an old one.
It’s built with care to support better digital habits, not shame or overwhelm.
- Add checks against common password lists
- Detect patterns like repeated characters or keyboard sequences
- Build a simple visual interface
- Make it dependency-less if plausible
MIT License