Generador de contraseñas online gratuito
Genera contraseñas seguras y aleatorias online con un generador privado en el navegador. Personaliza longitud, símbolos, números y caracteres sin subir datos.
Secure Actions
Choose your generation mode below.
Bulk Secure Keys
CSPRNG Password Generator: Cryptographically Secure Keys
True Crypto Randomness
We use the high-performance Web Crypto API (CSPRNG), not standard JavaScript math. This ensures your passwords are generated using high-entropy secure randomness suitable for banking and sensitive accounts.
Zero Knowledge Architecture
Total data privacy. Every generated key is chosen within your local browser memory and is never transmitted. We have no backend storage, ensuring your secrets remain yours.
Professional Strength Audit
Our generator includes a real-time entropy checker. It analyzes character diversity and length to provide an honest appraisal of your password's resistance to brute-force attacks.
Password Generation & Security FAQs
Qu'est-ce qui rend un mot de passe fort ?
For modern security (2026), length and complexity are key. High-entropy keys (16+ characters) using mixed symbols, cases, and numbers defeat most dictionary-based attacks.
Puis-je utiliser ceci hors ligne ?
Absolutely. Once the page is loaded, the logic is 100% standalone. You can generate secure keys while disconnected from the internet, making it ideal for high-security environments.
Is this tool free to use?
Yes. This is a free online tool and you can use it anytime without registration.
Is my data private?
No. La herramienta está diseñada para flujos de trabajo de privacidad en el navegador.