Strong Password Generator
Create strong, random passwords with the length and character sets you choose. Generated locally in your browser — never sent anywhere.
Generated locally in your browser with crypto.getRandomValues. Nothing is sent to a server.
Why use a random password generator?
Weak and reused passwords are behind the majority of account breaches. A generator removes human predictability by drawing every character from a cryptographically secure random source, producing passwords that are practically impossible to guess or brute-force. This tool runs entirely in your browser using the Web Crypto API, so your generated password is never transmitted, stored or logged.
What makes a password strong?
- Length — the single biggest factor; 16+ characters is a good baseline.
- Variety — mixing upper, lower, digits and symbols enlarges the search space.
- Randomness — no words, patterns or personal info.
- Uniqueness — a different password for every account.
How to use it
- 1Set the length with the slider.
- 2Toggle which character sets to include.
- 3Optionally exclude ambiguous characters for easier typing.
- 4Copy the password, or hit Regenerate for a fresh one.
Frequently asked questions
Are these passwords safe to use?+
Yes. They're generated in your browser using crypto.getRandomValues, the same cryptographically secure random source used for security-sensitive work. Nothing is transmitted or logged — the password never leaves your device.
How long should my password be?+
For important accounts, aim for 16 characters or more with a mix of character types, giving roughly 100+ bits of entropy. Longer is stronger; the built-in meter shows the estimated entropy as you adjust the options.
What does 'exclude ambiguous characters' do?+
It removes easily-confused characters (capital I, lowercase l, the number 1, capital O and zero) so a password is easier to read and type by hand — useful when you'll transcribe it onto another device.
Should I use a password manager?+
Yes. The strongest password is one you never have to remember. Generate a long random password here and store it in a reputable password manager, using a unique password for every account.