Password Generator
Generate strong, random, secure passwords instantly. Customise length, symbols, numbers, and case. Runs entirely in your browser — zero data sent to any server.
🔐 About This Password Generator
This password generator creates cryptographically secure random passwords using your browser's built-in crypto.getRandomValues() API — the same standard used by banks and security software. No passwords are ever transmitted to any server, stored in logs, or accessible to anyone but you.
Password length is the single most important security factor. A 16-character random password would take hundreds of billions of years to brute-force, even with dedicated cracking hardware. This generator can create passwords up to 128 characters for the highest-security applications.
🛡️ Password Security Guidelines
Use 12+ characters for all accounts
Use the same password twice
Use a password manager (Bitwarden, 1Password)
Include personal info (name, birthday)
Enable two-factor authentication (2FA)
Use dictionary words or common patterns
🎯 Common Uses
- Creating new account passwords for websites and apps
- Generating API keys and secret tokens
- Setting Wi-Fi network passwords
- Creating master passwords for password managers
- Database password generation for developers
- Generating PIN codes and access codes
- Creating strong email account passwords
- Securing banking and financial accounts
🔗 Related Security & Utility Tools
Frequently Asked Questions
❓ What makes a password strong?
A strong password has at least 12 characters, mixes uppercase and lowercase letters, numbers, and symbols, and avoids dictionary words or personal information. Length is the primary security factor.
❓ Is it safe to use an online password generator?
Yes — this generator runs entirely in your browser using JavaScript's crypto.getRandomValues() API. No passwords are sent to any server, stored, or logged. The generation is 100% local to your device.
❓ How long should a password be?
Minimum 12 characters for regular accounts, 16+ for sensitive accounts (banking, email, social media), and 20+ for master passwords in password managers. Longer passwords grow exponentially harder to crack.
❓ Should I use a password manager?
Yes — password managers like Bitwarden (free and open-source), 1Password, or Dashlane store unique strong passwords for every account. You only need to remember one master password. This is the single most impactful security habit.
❓ What is password entropy?
Entropy measures password unpredictability in bits: log2(pool_size^length). A 16-character all-character password has ~105 bits of entropy — effectively unbreakable by brute force with any current technology.
❓ How often should I change my password?
NIST guidelines now recommend changing passwords only when there is evidence of compromise — not on a fixed schedule. Using unique strong passwords for every account via a password manager is far more effective than frequent changes.
🎲 Related Tool
Need random numbers for statistical sampling, lottery picks, or game decisions? Our Random Number Generator uses the same cryptographically secure crypto.getRandomValues() API used in our password generator — for any range, quantity, or no-repeat requirement.