// security tool

Password Strength & Generator

Analyze password strength with advanced algorithms and generate cryptographically secure passwords — all processed locally.

Before using a password, check if it's been exposed in a breach. Check for Breaches

Password to Analyze

Analyzed locally — never sent to our servers

Password Strength Checking...

Password Length

8 16 128

Passwords under 12 characters are not recommended.

Character Types

Uppercase (A–Z) Lowercase (a–z) Numbers (0–9) Symbols (!@#$%^&*) Exclude Ambiguous (0, O, l, I, 1)

Generated Password

Using the Strength Checker

Enter your password in the input field
View real-time strength analysis as you type
Review feedback and suggestions
Improve weak areas identified

Very Weak Weak Fair Good Strong

Using the Generator

Set desired length (12+ recommended)
Choose character types to include
Click Generate Secure Password
Copy and store in a password manager

Check for breaches before using any password.

Never reuse passwords. With the complexity of modern passwords it's impossible to remember unique ones for every account — use a reputable password manager to store them securely.

Use Reputable Password Managers

Enable 2FA Everywhere

Don't Save in Browser

Unique Passwords Always

Every account needs its own unique password. If one gets compromised, others stay safe.

Enable Two-Factor Auth

Add an extra layer with 2FA using apps like Google Authenticator, Authy, or hardware keys.

Monitor & Update

Regularly check for breaches, update compromised passwords, and monitor for suspicious activity.

Frequently Asked Questions

No. Strength checking happens locally in your browser using the zxcvbn algorithm. Only generation requests are sent to our server — without your password being transmitted back. Your passwords never leave your device during analysis.

Strong passwords are long (12+ characters), use multiple character types, avoid common patterns, and don't contain personal information. Our tool analyzes entropy, pattern recognition, and dictionary attacks for a comprehensive assessment.

We use the zxcvbn algorithm by Dropbox, which goes beyond simple character counting. It analyzes patterns, dictionary words, keyboard sequences, repetition, and estimates time-to-crack using modern attack methods.

With modern computing power, passwords under 12 characters can be cracked relatively quickly. 12+ characters exponentially increase security by expanding the possible combinations, making brute force attacks significantly harder.

Yes. Our generator uses cryptographically secure random number generation to create truly random passwords. We recommend storing them in a password manager as randomly generated passwords are difficult to remember.

Our tool combines advanced zxcvbn analysis, complete client-side privacy, educational feedback, and cryptographically secure generation in one place — completely free.