Generator Guide
Password Generator with Symbols and Numbers
Symbols and numbers can improve password strength when they are part of a random password. They are less useful when added predictably to a weak word, such as replacing “a” with “@” or adding “123!”.
Character variety
Using uppercase, lowercase, numbers, and symbols increases the possible character set. A larger character set means more combinations at the same length.
However, length still matters. A very short password with symbols can remain weak.
Compatibility issues
Some older systems reject certain symbols or limit password length. When that happens, use the maximum allowed length and include the character types accepted by the service.
If a website has very restrictive password rules, protect the account with two-factor authentication where possible.
Avoid predictable substitutions
Attackers know common substitutions such as “0” for “o”, “1” for “i”, and “!” at the end. These tricks do not make a weak password truly random.
A generated password should not be based on a word at all.
Recommended settings
For important accounts, choose 16 to 24 characters or more, include all supported character types, and store the result in a password manager.
- 16+ characters.
- Uppercase and lowercase.
- Numbers and symbols.
- Unique per account.