Password Generator Guide: Strong Passwords That You Can Manage

Weak passwords are the easiest attack vector

Credential stuffing, dictionary attacks, and phishing succeed because people reuse simple passwords across services. A password generator creates random strings with enough entropy to resist brute force — but only if you store them in a password manager.

Zovaty Password Generator

The password generator creates cryptographically random passwords in your browser. Configure length, uppercase, lowercase, numbers, and symbols. Copy with one click. Nothing is stored or transmitted.

How long should passwords be?

Minimum 16 characters for important accounts. 20+ for master passwords and API keys. Each additional character exponentially increases brute-force time. Length matters more than complexity tricks like replacing 'a' with '@'.

Character set recommendations

Standard accounts: uppercase + lowercase + numbers + symbols

API keys and tokens: maximum length with full character set

WiFi passwords: 16+ chars, avoid ambiguous characters (0/O, 1/l)

PIN codes: only when a password manager is not available

Always use a password manager

Generated passwords are useless if you cannot remember them. Store every generated password in a password manager (1Password, Bitwarden, KeePass). Never write passwords in spreadsheets, sticky notes, or Slack messages.

Password practices for teams

Unique password per service — no reuse across tools

Rotate credentials when team members leave

Use SSO where available instead of shared passwords

Generate API keys with the UUID generator for identifiers

Never commit passwords to git repositories

Related Zovaty tools

Password generator — secure random passwords

UUID generator — unique identifiers

Hash generator — verify stored password hashes

Conclusion

Generate long, random, unique passwords for every account. Store them in a password manager. Use the password generator — free, local, and instant.

Understanding password entropy

Entropy measures unpredictability in bits. A 16-character password using uppercase, lowercase, numbers, and symbols provides roughly 104 bits of entropy — sufficient against brute force for decades. An 8-character lowercase password provides only 37 bits — crackable in hours with modern hardware.

Passwords plus two-factor authentication

Strong passwords are necessary but not sufficient. Enable two-factor authentication (2FA) on every account that supports it. Authenticator apps (TOTP) are more secure than SMS codes. Hardware keys (FIDO2) provide the strongest protection for high-value accounts.

Responding to password breaches

When a service you use reports a breach, change that password immediately. If you reused the password elsewhere, change it on every account. Check haveibeenpwned.com for exposure. Use unique passwords everywhere so one breach does not cascade.

Generating API keys and tokens

API keys and service tokens benefit from the same randomness as passwords. Use the UUID generator for unique identifiers and the password generator for secret keys. Store in environment variables, never in source code.

Password policies for compliance

SOC 2, ISO 27001, and PCI DSS require strong password policies. Minimum 12 characters, complexity requirements, and rotation after compromise. Document your policy and enforce with password managers and SSO.

Managing shared team credentials

Never share passwords via email or chat. Use a team password manager with role-based access. Rotate shared credentials when team composition changes. Audit access quarterly.

Passphrases vs random passwords

Diceware passphrases (4-6 random words) provide high entropy with memorability for master passwords. Random character passwords win for service-specific credentials stored in password managers.

Enterprise password rotation policies

NIST guidelines no longer recommend arbitrary periodic rotation. Rotate on compromise, role change, or suspected exposure. Focus policy on length, uniqueness, and breach monitoring instead of calendar-based rotation.

Password breach response plan

When a service reports breach: change that password immediately, change any reused passwords on other services, enable 2FA if available, monitor financial accounts for 30 days. Use the password generator for all replacement passwords.

Summary: password security essentials

16+ characters. Unique per account. Stored in password manager. 2FA enabled. Generated with password generator. Never shared via email or chat.