Password Generator Online
Strong, customizable passwords
Cómo usar Generador de Contraseñas
- 1
Set password length
Choose the desired password length using the slider.
- 2
Select character types
Toggle uppercase, lowercase, numbers, and symbols.
- 3
Copy password
Click copy to use the generated password.
Preguntas frecuentes
Is my data safe?
How random are the passwords?
What makes a strong password?
Are generated passwords stored anywhere?
Can I generate passwords on my phone?
Saber más
¿Qué es Password Generator?
Generate strong, random passwords with customizable length and character sets. Choose from uppercase letters, lowercase letters, numbers, and special symbols to create passwords that meet any requirements. Powered by the Web Crypto API for true cryptographic randomness — not weak pseudo-random number generators. Your passwords are generated entirely in your browser and are never transmitted, stored, or logged anywhere. This is one of the safest ways to create a password online.
¿Por qué usar Password Generator?
- Cryptographically secure — uses the Web Crypto API (crypto.getRandomValues), the same randomness source used by security-critical applications.
- Completely private — passwords are generated locally in your browser and never sent to any server. No one can intercept or log them.
- Customizable — control length, character types, and complexity to meet any site's password requirements.
- No account needed — generate unlimited passwords without signing up or installing anything.
- Instant — new passwords appear in milliseconds. Click generate as many times as you like.
Casos de uso de Password Generator
Creating account passwords
Generate a unique, strong password for each online account. Pair with a password manager to store them securely.
API keys & tokens
Create random strings for API secrets, database passwords, or encryption keys during development and deployment.
Temporary access codes
Generate one-time passwords or temporary access codes for sharing with team members or guests.
Wi-Fi passwords
Create a strong, memorable-length password for your home or office Wi-Fi network.
Consejos y buenas prácticas
- 💡Use at least 16 characters for important accounts. Each additional character exponentially increases the number of possible combinations.
- 💡Always include all character types (uppercase, lowercase, numbers, symbols) unless the target site restricts certain characters.
- 💡Never reuse passwords across accounts. If one service is breached, all accounts sharing that password are compromised.
- 💡Pair this generator with a password manager like Bitwarden, 1Password, or KeePass to store your passwords securely.
- 💡For passphrases (easier to type), generate a longer password with just lowercase letters — 20+ random lowercase characters can be as strong as 12 mixed characters.
Cómo funciona
Passwords are generated using the Web Crypto API's crypto.getRandomValues() method, which provides cryptographically secure pseudo-random numbers. This is the same API used by browsers for TLS/SSL connections and is considered suitable for security-critical applications. Each character is selected independently with uniform probability from the enabled character set, ensuring no patterns or biases in the output. The generation happens entirely in JavaScript within your browser — no network requests are made.
Más información