Herramientas de Contraseñas

Generador de Contraseñas — Herramienta Gratuita en Línea

Genera contraseñas seguras y aleatorias con longitud y caracteres personalizados.

Funciona en Tu Navegador
Resultados Instantáneos
100% Privado

Length

Uppercase letters (A-Z) Lowercase letters (a-z) Numbers (0-9) Symbols (!@#$…) Exclude ambiguous characters (l, 1, I, O, 0)

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What Is a Password Generator?

A password generator creates a random string of characters that is far harder to guess than anything a person would typically choose, drawing from uppercase letters, lowercase letters, numbers and symbols in whatever combination you select.

Randomly generated passwords avoid the predictable patterns — names, dates, keyboard walks, reused words — that make human-chosen passwords vulnerable to guessing and credential-stuffing attacks, which is why security guidance consistently recommends using a generator together with a password manager.

¿Quién Usa Esta Herramienta?

Para Empresas

Generate a strong password for a new employee or shared service account.

Para Uso Personal

Generate a unique, strong password for a new online account.

Para Estudiantes

Generate a secure password for a school or university account.

Para Oficinas

Generate a strong password when setting up a new system or device.

Por Qué Usar Esta Herramienta

Características Clave

Full Character Control

Choose uppercase, lowercase, numbers and symbols independently.

Instant Generation

Generate a new password immediately, with one click.

100% Private

Generated entirely in your browser — nothing is transmitted or logged.

Ambiguous Character Exclusion

Optionally exclude easily-confused characters like l, 1, I, O and 0.

El Resultado

Beneficios

Stronger Than Human-Chosen Passwords

Avoid predictable patterns that make passwords easy to guess.

Customizable Length & Complexity

Match the exact requirements of the account or system you're setting up.

Never Transmitted

Your new password is generated locally and never sent over the network.

Paso a Paso

Cómo Usar Generador de Contraseñas

Set Length & Character Types

Choose a length and which character types to include.

Click Generate Password

A new random password appears instantly.

Copy and Save It

Copy the password into a password manager immediately.

Especificaciones

Detalles Técnicos

Detalle	Valor
Entrada	Generated text output, no input required
Procesamiento	Length from 4 to 128 characters
Salida	Cryptographically random using your browser's Web Crypto API

Puedes Verificarlo

Privacidad y Seguridad

Lo que realmente sucede con tu archivo al usar esta herramienta.

100% Client-Side

This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.

No Upload, Ever

There is no file upload and no server processing step — your data never leaves your device.

Works Offline

Once this page has loaded, the tool keeps working even without an internet connection.

Nothing Stored

Nothing you enter is saved on our servers — refreshing the page clears everything.

No Tracking of Your Input

We have no way to see what you type, generate or convert with this tool.

Obtén Mejores Resultados

Consejos

Use a Password Manager

Save generated passwords in a password manager rather than trying to memorize them.

Use at Least 16 Characters

Longer passwords are significantly harder to crack — 16 characters or more is a good default.

Preguntas Frecuentes

Character selection uses your browser's cryptographically secure random number generator (Web Crypto API), the same kind of randomness used for cryptographic keys.

No — the password is generated and displayed entirely in your browser and never transmitted over the network.

Longer is generally better — 16 characters or more is a reasonable default for most accounts, more for highly sensitive ones.

Only if you expect to need to type the password manually — otherwise, including them slightly increases randomness.

No — nothing is stored; copy the password into a password manager right after generating it.

Length generally contributes more to strength than complexity alone, though both matter — this tool lets you control both.