Generador de Contraseñas — Herramienta Online Gratuita

What makes a password strong

Strength comes from length and unpredictability. A long password drawn from a large mix of character types has so many possible combinations that guessing it becomes impractical. Mixing uppercase, lowercase, numbers, and symbols across at least 12 to 16 characters is the practical baseline today, and longer is always better for accounts that matter.

Randomness matters

A password is only strong if it is truly random, because patterns and dictionary words are the first things attackers try. This generator uses the browser's cryptographically secure random source rather than a predictable formula, so each password is genuinely unpredictable. That is the difference between a password that resists attack and one that merely looks complex.

Use a unique password everywhere

Reusing one password means a single breach exposes every account that shares it. Generating a unique password for each service contains the damage of any leak. Because remembering dozens of random strings is impossible, pair this generator with a password manager that stores them, so you only memorize one strong master password.

Private and local

Password Generator runs entirely in your browser. Each password is created locally using secure randomness and is never uploaded, stored, or logged, so it exists only on your screen until you copy it. No server ever sees the password, and closing the tab clears it from memory.

Cómo Usar Generador de Contraseñas

1. Open the Password Generator tool.
2. Choose the password length you want.
3. Select which character types to include.
4. Generate the random password in your browser.
5. Copy the password into your password manager.

Secure a new account

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