Password Strength Checker
Quickly check how strong your password is, see a score, and get clear suggestions to improve it.
Check your password before you use it
Paste or type any password to see an instant strength rating. Use the suggestions below the meter to make it harder to guess or crack.
Tip: this checker runs entirely in your browser. Still, avoid testing real, highly sensitive passwords on shared or untrusted devices.
Password input
Enter a password to see its strength and feedback.
Suggestions to strengthen your password
- Start typing a password to see the strength analysis.
How this checker works
We score your password based on length, the variety of character types, and whether it looks like a common or easy-to-guess pattern. Everything runs locally in your browser—your password is never sent to any server.
Use this tool to improve your passwords before saving them in a password manager. For critical accounts, combine a strong password with two-factor authentication.
How It Works
The Password Strength Checker runs entirely in your browser using JavaScript. Unlike other tools that send your data to a server, we process everything locally on your device. This guarantees 100% privacy and blazing fast speed.
- No server interaction – data never leaves your device
- Instant results since there is no network latency
- Works offline once the page is loaded
- Free to use with no usage limits
How to Use
Type or paste a password
Enter the password you plan to use. You can turn on "hide" mode if someone is nearby.
Review the strength score
See an instant rating from Very weak to Very strong plus a visual strength bar.
Apply the suggestions
Follow the hints to increase length, mix character types, and avoid common patterns.
Example Usage
Use the checker to compare different passwords until you get a strong or very strong rating.
Frequently Asked Questions
Do you store or send my passwords?
What makes a password strong?
Is this checker enough for security?
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The Password Strength Checker is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.