CheckPass is an utility you can use for verifying whether your password is potentially unique. It checks against the files from the large known-passwords repository located at https://github.com/nrakochy/known-passwords.
The password files have been compressed using bzip2 to save disk space.
Python 2.7.x or Python 3.x are required and optionally Pip.
Open a command prompt and execute the command (Administrator privileges may be required):
python -m pip install git+git://github.com/sodasnout/checkpass
To uninstall with Pip (Administrator privileges may be required):
python -m pip uninstall checkpass
checkpass [-h] [-i] [-e] password
positional arguments:
password Password to check for.
optional arguments:
-h, --help show this help message and exit
-i, --ignore-case Ignore case.
-e, --exact Checks only for exact matches (case is not checked with -i flag on)