Password Strength Checker
Use our password strength checker to estimate entropy and crack time, get clear security suggestions, and generate a strong password you can save in a password manager.
Live score
Enter a password
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Analyze your password
Checklist
Very Weak- At least 12 characters
- Uses 3+ character types
- Avoids common words/patterns
- Avoids sequences and repeats
Suggestions
Generate a password
GuidedGeneration uses secure random values when available; falls back gracefully in offline environments.
Tip: aim for 16–24 characters with 3+ character types.
Password strength checker: what your score means
A strong password is long, unique, and hard to guess. This password strength checker estimates password entropy and gives a practical crack-time estimate so you can spot weak patterns quickly.
Quick best practices for stronger passwords
- Prefer 16 to 24+ characters, or use a long passphrase.
- Avoid reused passwords, keyboard patterns, and common substitutions.
- Use a password manager to generate and store unique passwords for every site.
- Enable MFA where possible to reduce account takeover risk.
FAQ
How strong is my password?
Length and unpredictability matter most. If your password is short, reused, or based on a common word, it is usually weak even with symbols.
What is password entropy?
Entropy is a way to express how many possibilities an attacker must try. Higher entropy generally means a higher cost to crack.
Is using symbols required?
Not always. A longer password or passphrase can beat a shorter password that simply adds symbols.
Should I use a password manager?
Yes for most people. Password managers make it practical to use unique, randomly generated passwords everywhere.