For users, admins and security learners who want to see why one password is weak and another is strong. You get the entropy in bits, a rating from Very weak to Very strong, an estimated offline crack time and plain notes on weaknesses.
Take an online exam and add a verified certificate to your public profile that anyone can check.
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summer2024
The tool shows
Length 10, pool 36, entropy 52 bits, rating Reasonable, crack time about 4 days, notes: shorter than 12 chars, no symbols
Entropy is length multiplied by log2 of the character pool. The pool adds 26 for lowercase, 26 for uppercase, 10 for digits and 32 for symbols, so a 12-character password using all four has about 79 bits.
It assumes an offline attack at 10 billion guesses per second against the full character space. Real attackers try dictionary words and patterns first, so treat common words as weaker than the number shows.
The checker rates 60 to 79 bits as Strong and 80 bits or more as Very strong. Below 40 bits is Weak and below 28 is Very weak.
Yes. It is free, needs no sign-up and runs entirely in your browser, so what you type is not uploaded. You only sign in if you want to email a result to yourself or save it to your CareerByteCode profile.
