PRIVACY TOOLS / LOCAL TOOL
Password Entropy
Understand search space in seconds.
HOW IT WORKS
Estimating a search space
Entropy is estimated as length multiplied by the base-2 logarithm of the detected character pool.
Limits to keep in mind
This mathematical estimate does not detect dictionary words, leaked passwords or predictable human patterns.
A PRACTICAL WORKFLOW
Use the result carefully.
01Enter a sample password to see its character pool, length and estimated search-space entropy.
02Run the utility and inspect the complete output.
03Use the estimate to compare structures, not to certify a real password.
COMMON QUESTION
How many bits are enough?
There is no universal threshold; rate limits, hashing and uniqueness all change the practical risk.