How to Use This Password Strength Checker
Simply type or paste your password into the field above. The checker runs entirely in your browser — your password is never sent to any server. Results appear instantly as you type.
What Makes a Strong Password?
A strong password should meet all of the following criteria:
- Length: At least 12 characters — longer is always better
- Uppercase letters: Include at least one capital letter (A–Z)
- Lowercase letters: Mix in lowercase letters (a–z)
- Numbers: Add digits (0–9) throughout
- Special characters: Use symbols like !@#$%^&*()
- No dictionary words: Avoid common words, names, or dates
Why Password Strength Matters
Weak passwords are the #1 cause of account breaches. A simple 6-character password can be cracked in seconds with modern hardware. A 12-character password mixing letters, numbers, and symbols would take millions of years to crack with brute force — making it effectively unbreakable.
Is my password saved or stored?
No. This tool runs 100% in your browser. Your password never leaves your device and is never transmitted to any server.
What is a "crack time" estimate?
It's an estimate of how long it would take a modern computer using brute-force methods to guess your password. The longer the crack time, the safer your password.
How often should I change my password?
Security experts now recommend changing passwords only when you suspect a breach — but always use a unique, strong password for every account.
What's the best way to manage strong passwords?
Use a reputable password manager (like Bitwarden, 1Password, or Dashlane) to generate and store unique strong passwords for every site.