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Strong passwords, and passphrases you can actually say out loud. Generated on your own machine by your browser's cryptographic random number generator — never sent anywhere, never stored.
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Generated on this device and never sent anywhere — and, unlike every other generator here, never written to your browser's storage either.
A password generator that runs on a server has to send you the password, which means the password existed somewhere else first. This one never leaves the page: the characters are drawn by your own browser and the result is not saved, not logged and not kept in the history the other generators use.
Close the tab and it is gone. Copy it into your password manager before you do.
The strength reading is the number of bits of entropy — how many equally likely passwords the settings could have produced. Adding characters raises it far faster than adding rules does.
A five-word passphrase is stronger than a mangled dictionary word twice its length, and you can read it down a phone line, which is the whole argument for it.
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