Password Generator

Create passwords with the length and character sets you need. Computes entropy in bits and shows the security level. Generated with crypto.getRandomValues.

Entropía

128 bits

Charset de 84 caracteres

Nivel de seguridad

Muy fuerte

Cómo se calcula

entropía_bits = log2(tamaño_charset) × longitud

Una contraseña de 16 caracteres con mayúsculas, minúsculas y números tiene ≈ 95 bits de entropía.

Cómo usarla

  1. Adjust length. 16+ recommended.
  2. Toggle character sets. Uppercase, lowercase, numbers, symbols.
  3. Copy. One click sends it to your clipboard.

Preguntas frecuentes

What is entropy?

A measure of how unpredictable the password is. 80+ bits is Strong, 100+ Very Strong. More bits = harder to guess.

Is it safe to generate passwords in the browser?

Yes. We use crypto.getRandomValues, which is cryptographically secure. The password never leaves your device.

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