Length 16

Count

Lowercase (a-z) Uppercase (A-Z) Numbers (0-9) Symbols Exclude ambiguous chars (0/O, l/1)

Generated passwords

Real input and output

Length 20, all character sets

Input

Length 20 with upper, lower, digits, and symbols

Output

K7#mQ2vL!xR9pT4wZ&nB

For sites that reject symbols

Input

Length 24, letters and digits only

Output

h4Kq9mZt2RvL7xPw3BnY6sDc

Adding length compensates for the missing symbol set at the same strength.

Errors you will hit

Length beats character variety

Sixteen lowercase characters are far stronger than eight mixed with symbols. Fill the maximum length the site allows first, then widen the character set.

Do not try to memorize it

Random passwords are supposed to be unmemorable. Storing a unique one per site in a password manager is safer than reusing something you can recall.

Is the generated value sent anywhere?

Generation uses the browser cryptographic random source (crypto.getRandomValues) and the value is not transmitted. On a shared machine, still close the tab and clear the clipboard when done.

Tools that pair well

What makes a good password generator useful

Length matters most

In many real-world cases, increasing password length helps more than obsessing over one extra complexity rule.

Choose the character set for the target system

Some legacy systems still reject special characters, so the best password is one that is both strong and actually accepted where you need it.

Exclude confusing characters when needed

If someone must type a password manually from a screen, removing ambiguous characters can reduce operational mistakes.

Operational reminders worth keeping in mind

Storage can matter more than generation

A strong password loses value quickly if it gets copied into plain-text notes or chat threads. A password manager is still the safer long-term home.

User passwords and machine secrets are not the same

Credentials typed by people and secrets used by systems often benefit from different length and character-set strategies.

Generated inside the browser

This tool generates values in the browser. If you need a follow-up check, related utilities such as the Hash Calculator can support the workflow.