Gerador de senhas

Nosso gerador de senhas cria senhas criptograficamente aleatórias de qualquer comprimento, combinando letras maiúsculas, minúsculas, números e símbolos especiais. Em uma era de bilhões de credenciais expostas por ano, uma senha forte e única é sua primeira e mais importante linha de defesa. Ao contrário das senhas criadas por humanos, senhas geradas algoritmicamente não contêm padrões exploráveis.

Após gerar sua senha, teste sua força com nosso Verificador de Força de Senha. Nunca reutilize a mesma senha em várias contas — uma única violação compromete todas as contas com senha idêntica.

What makes a password truly strong?

The NIST Special Publication 800-63B (2017) fundamentally changed how security professionals think about password strength. The old paradigm — mandatory complexity rules like "must include uppercase, number and symbol" — turns out to be counterproductive because it leads to predictable patterns (Password1!, Summer2024!). NIST's updated guidance: length matters more than complexity. A 20-character passphrase of random words ("coffee-mountain-river-lamp-27") is far stronger than an 8-character "complex" password and vastly easier to remember. Our generator uses a cryptographically secure random number generator (CSPRNG) — not JavaScript's regular Math.random() which is not cryptographically secure — to generate genuinely unpredictable passwords.

Why you need a different password for every site

Data breaches expose billions of credentials annually. When a site is breached, attackers immediately use the stolen username/password pairs to attempt logins on every major service — a technique called credential stuffing. If you reuse passwords, a breach at one minor site can unlock your email, banking and social accounts. Use a password manager (Bitwarden, 1Password, KeePass) to generate and store unique passwords for every service. After generating your password here, check its strength with our Password Strength Checker.