Security · Local & Private

Password Strength Test

Type or paste a password and see its strength score in real time — with an entropy estimate in bits, crack-time estimates for offline and online attacks, and a checklist of exactly what is missing. Everything runs locally in your browser: nothing is ever sent anywhere.

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💡 Tip: a passphrase of 4–5 random words is both easier to remember and far stronger than a short jumble of symbols. Length beats complexity.

🔒 Random password generator

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🔒 Entropy in bits

See how many bits of randomness your password has and how that translates into real crack times.

✅ 8-point checklist

Length, character variety, repetitions, keyboard walks and leaked-password blacklists — checked instantly.

🔑 Two attack models

Separate estimates for a fast offline GPU attack and a slow online login attack.

🗣 Passphrase advice

Practical tips that make your passwords stronger and easier to remember at the same time.

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