Why choose a 20-character password?
Twenty random characters provide a large search space while remaining compatible with many modern account systems and password managers.
Character-set compatibility
Some applications accept twenty characters but reject spaces or selected symbols. Turn off unsupported groups rather than manually editing the generated password.
Designed for password-manager storage
A twenty-character random string is difficult to memorize accurately. Store it in a trusted password manager, enable another authentication factor, and never reuse it.