Strong password generator: random, secure, instant
Create strong random passwords with the length and characters you need. Passwords are made in your browser with a cryptographically secure generator and are never sent anywhere.
Tap a password in the list to copy it. Nothing is saved or sent – refresh the page and they are gone.
What makes a password strong?
A strong password is long, random and unique. Length matters most: every extra character multiplies the number of guesses an attacker needs. A random 16-character password that mixes uppercase and lowercase letters, numbers and symbols has about 100 bits of entropy – far beyond what any computer can guess.
How this password generator works
The tool uses your browser’s built-in crypto.getRandomValues() – the same cryptographically secure random number generator used for encryption – and avoids the small bias that simple random functions have. Every password is created on your own device and is never sent to our server or stored anywhere.
How long should my password be?
- 12+ characters for everyday accounts such as shopping and social media.
- 16+ characters for email, banking and work accounts.
- 20+ characters for password manager master passwords, Wi-Fi keys and admin accounts.
Tips to keep your accounts safe
Use a different password for every account, so one leak does not unlock the rest. Save them in a password manager instead of a notebook or a text file, and turn on two-factor authentication (2FA) wherever it is offered. If a site limits symbols, untick Symbols and add a few more characters instead.
Frequently asked questions
Is this password generator safe to use?
Yes. Passwords are generated in your browser with the Web Crypto API (crypto.getRandomValues), which is cryptographically secure. Nothing is sent to a server or saved.
How long should a strong password be?
At least 12 characters for normal accounts and 16 or more for email, banking and admin accounts. Longer is always stronger.
What is password entropy?
Entropy measures how unpredictable a password is, in bits. Each extra bit doubles the number of guesses needed. Around 80 bits or more is considered very strong for online accounts.
Should I avoid look-alike characters?
Turn on “Avoid look-alikes” if you will read or type the password by hand, for example a Wi-Fi password. It removes characters like l, 1, O and 0 that are easy to confuse.
Is the password generator free?
Yes, it is completely free with no signup and no limits.
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