OpusDesk Hub What this tool does
Inspect a password with a local heuristic strength score. The score combines length, uppercase/lowercase/digit/symbol presence, a small list of regex patterns and an entropy-style estimate. Patterns include a few common strings, sequences and repeated characters. This is a finite heuristic, not a dictionary or compromised-password lookup.
How to use Password Strength Checker
- Prepare the input. Enter an illustrative password in the checker.
- Run or configure the tool. Read the component scores and small-pattern warnings.
- Check and use the output. Treat the result as local feedback, not proof that an account or password is safe.
How this tool works
The score combines length, uppercase/lowercase/digit/symbol presence, a small list of regex patterns and an entropy-style estimate. Patterns include a few common strings, sequences and repeated characters. This is a finite heuristic, not a dictionary or compromised-password lookup.
Worked example
Input: Check password 123
Output: 23/100; Very Weak in the current scoring rules.
Limits, assumptions and interpretation
No breach database, comprehensive dictionary or online account check is performed.
- The score and entropy label do not measure real cracking time or guarantee security; predictable long text can score too highly.
- The optional generator uses browser randomness, but this meter is not a complete password policy or NIST compliance check.
- Use a unique password and appropriate multi-factor authentication for real accounts; test an illustrative password on shared devices.
Supported inputs and limits
- Check password 123
- No breach database, comprehensive dictionary or online account check is performed.
- The score and entropy label do not measure real cracking time or guarantee security; predictable long text can score too highly.
- The optional generator uses browser randomness, but this meter is not a complete password policy or NIST compliance check.
- Use a unique password and appropriate multi-factor authentication for real accounts; test an illustrative password on shared devices.
Sources and specifications
Frequently asked questions
What does this tool actually do?
The score combines length, uppercase/lowercase/digit/symbol presence, a small list of regex patterns and an entropy-style estimate. Patterns include a few common strings, sequences and repeated characters. This is a finite heuristic, not a dictionary or compromised-password lookup.
What should I check before using the result?
No breach database, comprehensive dictionary or online account check is performed. The score and entropy label do not measure real cracking time or guarantee security; predictable long text can score too highly. The optional generator uses browser randomness, but this meter is not a complete password policy or NIST compliance check. Use a unique password and appropriate multi-factor authentication for real accounts; test an illustrative password on shared devices.
Is information sent to a server?
Tool inputs are processed in this browser. This product does not use analytics or send your input to an external API. Clicking an external website link still visits that website.