Password Strength Checker - Test Your Password
Test how strong your password is. Get detailed analysis including entropy score, crack time estimation, and actionable recommendations for improvement.
Understanding This Tool
What It Does
Analyze a password and rate its strength based on length, character diversity, and predictability. This tool provides detailed feedback on how secure a password is and suggests improvements.
Understanding the Results
- Strength Rating: Weak, fair, good, strong, or very strong assessment
- Crack Time Estimate: How long to crack with modern computing
- Entropy Score: Numerical rating of randomness and unpredictability
- Feedback: Specific recommendations to improve the password
- Character Analysis: Breakdown of character types used
- Pattern Detection: Identification of common patterns or dictionary words
Common Use Cases
- Password Policy Enforcement: Validate passwords meet organizational requirements
- User Education: Help users understand password security
- Account Recovery: Verify temporary passwords meet security standards
- Security Audits: Test password policies across your organization
- Compliance: Ensure passwords meet regulatory requirements
Pro Tips & Best Practices
- Avoid Common Patterns: Don't use birthdates, sequential numbers, or keyboard patterns
- Avoid Dictionary Words: Passwords based on dictionary words are easily cracked
- Mix Character Types: Combine uppercase, lowercase, numbers, and symbols
- Length Over Complexity: A longer password beats complexity
Last reviewed:
How this tool works: This tool runs in your browser and on our server in real time. Depending on the tool, results are computed directly from the input you provide or retrieved from live, authoritative data sources at the moment you run a lookup. We do not sell your data, and your lookups are kept private — any history shown here is stored only on your device.