16 character password generator
sixteen random characters is the length most security teams recommend for important accounts. get one now, or ten at a time.
runs on your device · free · no sign-up
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how to 16 character password generator
- pick a mode: random, pronounceable or memorable words.
- set the length and the character types, and choose how many passwords you want.
- check the strength meter and the estimated crack time.
- copy one password, copy all, or download the list as a .txt file.
with all four character types, 16 characters give about 105 bits of entropy. that is far beyond what any attacker can guess, even with a stolen database and a fast hash. adding more length beyond 16 mostly helps against future hardware, not today's.
many sites cap passwords at 16 or 20 characters or reject some symbols. if a form refuses your password, turn off symbols or no look-alikes and generate again, rather than shortening it. a long random password with letters and digits only is still much stronger than a short one with symbols.
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frequently asked questions
is 16 characters enough?
yes, for almost every account. a random 16 character password with mixed types has about 105 bits of entropy, which cannot be brute forced with any hardware that exists. the bigger risk is reusing it or typing it into a phishing page.
which symbols are used?
the symbol set is !@#$%^&*()-_=+[]{};:,.<>?/~. if a site rejects some of them, uncheck symbols and raise the length to 20 to keep the strength.
can i generate several 16 character passwords?
yes, choose 10, 50 or 100 under how many. you can copy all of them or save a text file, which is useful for setting up test accounts.