The Password Generator creates strong, random passwords right in your browser. Choose how long you want the password and which character types to include — uppercase letters, lowercase letters, numbers, and symbols — and it builds a fresh, unpredictable password instantly. A strength meter shows how hard the password would be to crack, and one click copies it ready to paste.
Every password is generated locally using your device’s cryptographically secure random number generator (the same kind of randomness browsers use for encryption). Nothing is ever sent to a server, stored, or logged — the password exists only on your screen, so it stays private to you.
How to generate a strong password
- Set the length with the slider — 16 characters or more is recommended for important accounts.
- Tick the character types to include: uppercase, lowercase, numbers, and symbols. Using all four makes the strongest password.
- Optionally turn on “Exclude similar characters” to avoid easily-confused characters like the letter O and the number 0.
- Click the refresh button to generate a new password, then click Copy to put it on your clipboard.
What makes a password strong?
A password’s strength comes from how many possible combinations an attacker would have to try to guess it — measured in bits of entropy. Two things increase it: length and variety. A longer password, and one that mixes uppercase, lowercase, numbers, and symbols, has vastly more possible combinations, which is why this generator reports the strength in bits.
As a rule of thumb, aim for at least 12–16 characters with a mix of character types. Anything showing “Strong” or “Very strong” (roughly 80 bits or more) is well beyond what current computers can brute-force in any practical amount of time.
Tips for staying secure
- Use a different password for every account, so a leak on one site can’t unlock the others.
- Longer beats complex — a long password is harder to crack than a short one full of symbols.
- Store your passwords in a reputable password manager instead of trying to remember them.
- Turn on two-factor authentication (2FA) wherever it’s offered for an extra layer of protection.
- Never reuse a password that has appeared in a data breach.
Frequently Asked Questions
Are the generated passwords really random and safe?
Yes. Passwords are generated using the Web Crypto API (crypto.getRandomValues), your browser’s cryptographically secure random number generator, so each character is genuinely unpredictable. The generation happens entirely on your device.
Does this tool store or send my passwords anywhere?
No. Everything runs locally in your browser. Passwords are never uploaded, saved, or logged — once you close or refresh the page, the password is gone unless you copied it.
How long should my password be?
For most accounts, 16 characters with a mix of uppercase, lowercase, numbers, and symbols is a strong choice. For highly sensitive accounts, longer is better — the length slider goes up to 64 characters.
What does “Exclude similar characters” do?
It removes characters that are easy to confuse when reading or typing a password — the capital I, lowercase l, number 1, capital O, and number 0. This is handy if you need to type the password by hand.
Is it safe to generate a password on a website?
With this tool, yes, because the password is created entirely in your browser and never transmitted. As a general habit, only generate passwords on trusted sites that run locally like this one, and prefer a password manager for everyday use.