Password Generator Online — Strong & Random
Generate strong, random, and secure passwords. Customize length, characters, and generate in bulk.
XzPYi2}Z5r8x{oF)Why use a password generator?
Humans are bad at creating random passwords. We tend to use predictable patterns, dictionary words, and personal information. A random password generator creates truly unpredictable passwords that are much harder to crack.
How long should my password be?
We recommend at least 16 characters with a mix of lowercase, uppercase, numbers, and symbols. A 16-character random password would take billions of years to crack with current technology.
Is this generator secure?
Yes. Passwords are generated using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers. No passwords are stored or sent anywhere.
About This Tool
The Password Generator creates strong, cryptographically random passwords for securing accounts, services, and databases. Choose from uppercase letters, lowercase letters, numbers, and symbols, with lengths up to 128 characters, to generate passwords that resist brute-force and dictionary attacks.
Key Features
- Customizable Character Sets — Toggle uppercase, lowercase, digits, and symbols independently to meet the specific requirements of any password policy.
- Adjustable Length — Set password length from 8 to 128 characters using a slider or direct input to balance security and usability.
- Strength Indicator — Real-time strength meter shows Weak, Fair, Good, or Strong based on length and character variety to guide your choices.
- Cryptographically Secure — Uses the browser's window.crypto.getRandomValues API to generate truly random passwords, not pseudorandom ones.
- Free & No Signup — Use this tool as many times as you need without creating an account or paying anything.
Common Use Cases
- Generating a strong master password for a new password manager vault
- Creating random API keys and secret tokens for web applications and microservices
- Generating temporary passwords for newly created user accounts to send via onboarding email
- Creating database passwords that meet complex corporate password policies (mixed case, symbols, length)
- Generating Wi-Fi passwords and encryption keys for network configuration
How to Use
Set your desired password length using the slider. Check the character set boxes you want to include (uppercase, lowercase, numbers, symbols). Click Generate to create a new password. The strength indicator updates automatically. Click Copy to copy the password to your clipboard.
Frequently Asked Questions
How long should a strong password be?
At least 16 characters for general accounts and 24+ for critical systems like banking or admin panels. Length is the most important factor: a 16-character random password is exponentially harder to crack than an 8-character one.
What does cryptographically secure random mean?
The tool uses window.crypto.getRandomValues, which generates entropy from hardware noise. This is fundamentally different from Math.random(), which is predictable and should never be used for security purposes.
Should I include symbols in my password?
Yes, when the service allows it. Symbols dramatically increase the number of possible combinations. A 12-character password with symbols has approximately 475 quadrillion possible values versus 3.2 trillion with only letters and numbers.
Can I use the same password for multiple sites?
Never. If one site suffers a data breach, attackers will try your password on other services (credential stuffing). Use a unique, randomly generated password for each account and store them in a password manager.
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Before This Tool