What is Password Strength Checker Online?
A strong password is the first line of defence against account compromise. This tool calculates your password's entropy (randomness), detects common patterns like "123456" or keyboard walks like "qwerty", and scores it across multiple vectors using the industry-standard zxcvbn algorithm entirely in your browser.
How to Use Password Strength Checker Online
- Type your password into the input field.
- Review the strength score (0–4) and detailed feedback in real-time.
- Follow the suggestions to increase your score.
Frequently Asked Questions
Is my password safe to type here?
Yes. This tool runs entirely in your browser. Your password is never transmitted to any server or stored anywhere.
What makes a password strong?
Length is more important than complexity. A 16-character passphrase of random words is far stronger than "P@ssw0rd1!". Aim for 16+ characters with high entropy.