Strong Password Generator
Use this strong password generator to create long, random passwords with uppercase, lowercase, digits and symbols. It runs in your browser using a cryptographically secure random source, with no upload and no sign-up.
Your password
Generated locally with your browser's cryptographically secure random generator. Nothing is sent or stored.
How to create a strong password
Choose a long length
Set the length to 16 or more. The single biggest factor in password strength is length, so longer beats clever.
Turn on every character type
Enable uppercase, lowercase, digits and symbols so the password uses the full character space and is harder to guess.
Generate, copy and save
Generate the password, copy it with one tap, and store it in your password manager so you never have to remember it.
What makes a password strong
A strong password is long and unpredictable. This generator builds each password from random bytes produced by crypto.getRandomValues, the same secure random source browsers use for cryptography, so there are no guessable patterns and no reused templates.
Strength comes from length and a mix of character types far more than from substituting letters with symbols in a word you already use. Letting the generator pick a fully random string, then storing it in a password manager, beats memorising a tweaked dictionary word.
Private by design
Everything happens locally in your browser. The passwords are never uploaded, logged or stored by this tool, and there is no account to create. If you want a password you can actually memorise instead, try the memorable password generator.
Frequently asked questions
What counts as a strong password?
A long, random password using several character types. Aim for 16+ characters with uppercase, lowercase, digits and symbols.
Is a strong password generator safe to use online?
This one is, because it generates passwords locally in your browser. Nothing is uploaded or stored by the tool.
Should I use symbols in a strong password?
Symbols help, but length matters more. A long random password with mixed characters is strong; just confirm the site accepts the symbols you include.
Can I generate several strong passwords at once?
Yes. You can generate a single password or a batch, then copy whichever you need.
Do I still need a password manager?
Yes. The tool makes strong passwords, but you need a password manager to store them safely since they are too random to memorise.