Brute Force Estimator
NOTE: DO NOT ENTER YOUR REAL PASSWORDS
This is a learning tool to help you understand password complexity and to practice creating strong passwords in real time. This is NOT to test your real passwords. NEVER put your real password into a unknown website.
About the Brute Force Estimator
The Brute Force Estimator is 100% free for personal use and designed to help people understand what makes a password strong or weak.
Good to know:
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This tool runs entirely in your browser.
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No passwords, inputs, or data are captured, stored, or sent anywhere.
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All calculations happen locally on your own device the moment the page loads.
Because it’s fully browser-based, there are no rate limits. You can test as many passwords as you want, as often as you want — the only thing doing the work is your own computer.
This tool exists to educate, not to scare — helping users learn how to create stronger, more secure passwords through clear, practical feedback.
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Usage & Licensing
The Brute Force Estimator may not be rehosted, modified, redistributed, sold, or embedded elsewhere without permission.