Password Generator
Generate strong random passwords with custom options.
Password Strength Checker
Check your password's strength in real time — no data sent to any server.
Input data is processed in your browser
Data is never sent to a server
Tool
What is Password Strength Checker?
Password Strength Checker analyzes your password in real time across multiple dimensions: length, character variety, repeated characters, sequential patterns, and more. A strong password is generally recommended to be at least 12 characters long and include uppercase letters, lowercase letters, numbers, and symbols.
How to Use
- Enter the password you want to check in the input field.
- The strength meter, checklist, and entropy update instantly as you type.
- Review any warnings shown below for improvement tips.
- Use the eye icon to toggle password visibility.
FAQ
Is my password sent to a server?
No. All analysis happens entirely in your browser. Your password is never transmitted anywhere.
What is entropy?
Entropy measures the amount of information in your password, expressed in bits. The higher the value, the more attempts an attacker needs to crack it. 60+ bits is generally recommended.
How is the estimated crack time calculated?
It assumes a modern GPU cluster performing 10 billion guesses per second and estimates the average time to exhaust half the possible combinations. Use it as a relative guide, not an absolute guarantee.
How are common password warnings detected?
The tool checks whether well-known weak patterns (password, qwerty, 123456, etc.) appear anywhere in your input.
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