Strong Password Generator
Generate secure random passwords with custom length and character sets.
How to use
Enter your values and pick a mode if the tool offers one.
Click calculate — results appear instantly, computed in your browser.
Copy the result or save the tool to your favorites.
Frequently asked questions
Yes — entirely in your browser, never sent over the network.
Uppercase, lowercase, digits, and symbols by default.
Longer is stronger; 16+ characters is a good baseline.
It uses the browser’s cryptographic random generator, so collisions are extremely unlikely.
No. Use a unique password per account and a password manager.
About the Strong Password Generator
This tool creates strong, random passwords of any length, mixing uppercase and lowercase letters, digits, and symbols. Every password is generated locally in your browser using the cryptographically secure random generator built into modern browsers, so the result is genuinely unpredictable and never travels over the network.
What makes a password strong
The strength of a password comes mainly from its length and randomness, not from clever substitutions. Each additional character multiplies the number of possible combinations an attacker must try, so a long random password is exponentially harder to crack than a short complex one. A predictable pattern, a dictionary word, or a personal detail like a birthday undermines a password no matter how many symbols it contains, because attackers test those first. True randomness across a large character set is what defeats both guessing and brute-force attacks.
Why length beats complexity
People often assume that adding symbols and numbers is the key to a strong password, but length matters far more. A sixteen-character password drawn from a wide character set has so many possible combinations that brute-forcing it is infeasible with current technology, while an eight-character password, however complex, is far weaker. This is why security guidance increasingly favours long passphrases or long random strings over short, hard-to-type tangles of symbols. Aim for at least sixteen characters wherever the service allows it.
How this generator works
The tool draws each character at random from a set containing uppercase and lowercase letters, digits, and common symbols, using the browser's cryptographic random number generator rather than the ordinary, predictable one. This matters: ordinary random functions can be guessed if an attacker knows the seed, whereas cryptographic randomness is designed to resist prediction. The result is a password with no pattern, no dictionary content, and no link to you.
Using passwords safely
A strong password only helps if you use it well. Never reuse a password across accounts, because a breach of one site then exposes all the others. Because strong random passwords are impossible to memorise, store them in a reputable password manager, which can also generate and fill them for you. Enable two-factor authentication wherever possible, so that even a stolen password is not enough on its own.
Privacy and related tools
Passwords are generated entirely on your device and are never sent anywhere, logged, or stored, so what you generate is yours alone. For generating unique identifiers rather than passwords see the UUID Generator, and for creating account names the Username Generator. Generate a fresh password with a single click whenever you need one.