Developer Security Utility
Password Strength Checker
Evaluate password structure locally without sending the password anywhere.
Check password structure
Method
The checker uses a local heuristic based on length, character-set diversity, repeated characters, and a small set of obvious sequence/common-word indicators. It also reports a rough search-space estimate based on observed character classes.
Worked example
A long mixed-character password such as a 20-character randomly generated value will usually score higher than a short lowercase dictionary-like password.
Privacy
The password is evaluated only in your browser. It is not submitted to Practical Tools Hub or checked against an online breach database.
Limitations
This is not a guarantee of security and not a breach check. Real attack resistance depends on uniqueness, attacker resources, hashing methods, reuse, phishing, malware, and other factors.