16 character password generator
The recommended length for email and banking is already set: 16 mixed characters, generated and measured on your device.
From 4 to 128
More options
You can edit the list.
Added to the sets you picked.
Each word comes from a list of 7,773 common English words and adds 12.9 bits. It is easy to remember and hard to guess.
A PIN is only secure if the service limits the number of attempts. For online accounts, use a long password.
From 1 to 50
It is not sent anywhere. It is analyzed in your browser.
This is an upper-bound estimate: it does not know every word in every language or the passwords that have leaked. A phrase made of common words is worth much less than it looks.
Best practices
- Use a password manager so you do not have to remember them.
- Turn on two-step verification on important accounts.
- Do not reuse the same password on different sites.
How to use it
- Pick the type: random password, passphrase made of words, or numeric PIN.
- Set the length and the characters you want to use. The password regenerates on its own with every change.
- Check the strength: we show the bits of entropy and the estimated time it would take to guess it.
- Copy the password with one click. If you generated several, you can copy them all or download them.
- Save it in a password manager: it is not kept here.
Frequently asked questions
Why 16 characters?
It is the length security experts recommend for important accounts. With uppercase, lowercase, numbers, and symbols it comfortably exceeds 80 bits of entropy.
Is it hard to remember?
At this length a password manager is the way to go. If you need to remember it without one, use the “Passphrase” mode and pick five or six random words, which are easier to memorize.
Is the strength it shows exact?
It is an entropy estimate for randomly generated passwords: it measures the possible combinations, not whether someone already knows it. Below 40 bits is weak and 80 or more is very strong.
The recommended length
For email, banking, and work accounts, 16 characters or more is recommended. With all four character types turned on, the password exceeds 80 bits of entropy, the threshold considered very strong. The tool shows that calculation in bits and the estimated time to guess it.
Keep it in a manager
Sixteen random characters are hard to memorize: store them in a password manager and protect it with a long passphrase. Turn on two-step verification for email and money accounts. If you would rather remember it, try the “Passphrase” mode in the full tool or look at the 20 character option.
Updated on September 29, 2026