Password maker
A password in short chunks, the way Apple suggests them: easy enough to read out or type by hand, and far too random for anyone to guess.
Made on this device, and never sent or stored anywhere. Close the page and it is gone, so paste it somewhere safe first.
How safe is it?
—bits of randomness
Bits count the guessing. Each extra bit doubles the work, so the numbers grow far faster than the password does. Around 60 bits is enough for an ordinary account; past 90, no machine that exists can work through them.
Technical details
- length
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- alphabet
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- guaranteed
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- possible
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- entropy
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- expected
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- randomness
- crypto.getRandomValues
Entropy is the exact count of passwords these rules can produce, not an estimate: every one of them is equally likely, so nothing about this password is more predictable than any other. Guessing times assume an attacker who has stolen the site's password file and can try a trillion (1012) guesses every second, and who needs half of them on average.