Check Password Strength Online: Picking a Safe Tool
How to evaluate online password strength checkers for privacy and safety, and why client-side-only tools are the right choice.
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Tags: security, passwords, tools
Check Password Strength Online: Tools, Algorithms, and What They Miss Searching for "password strength checker" produces dozens of results. They range from simple colored bars that count character types to sophisticated tools that model actual cracking approaches. Understanding what these tools measure — and crucially, what they don't — helps you make better use of them. The Spectrum of Password Strength Checkers Rule-Based Checkers (Weak) The most common type. They award points for length, uppercase, lowercase, digits, and symbols, then display a bar or score. These are easy to implement and easy to fool. scores "strong" or "very strong" on most rule-based checkers. It satisfies all the rules: 9+ characters, uppercase, lowercase, digit, symbol. It's also literally one of the most common…
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