Secure Password Generator

Create cryptographically strong passwords with customizable security requirements
generated using secure random algorithms for maximum protection

🛡️ Enterprise-Grade Password Security

Generate passwords that meet the highest security standards used by enterprises and security professionals. Our tool uses cryptographically secure random number generation and allows you to customize every aspect of your password to meet specific requirements.

✓ Cryptographically secure generation
✓ Real-time strength validation
✓ Customizable character requirements
✓ Exclude similar/ambiguous characters
✓ Length from 4 to 128 characters
✓ Perfect for accounts, databases, APIs

🛡️ Password Configuration

16

🔑 Generated Password

🔒 Security Best Practices

Never reuse passwords: Use a unique password for every account.
Use a password manager: Store passwords securely in tools like Bitwarden, 1Password or LastPass.
Enable 2FA: Add two-factor authentication wherever possible.
Regular updates: Change important passwords every 6-12 months.

🧪 Example Password Configurations

Click an example to load preset configurations for different use cases

General Account
16 chars, all types
Balanced security
Banking & Email
20 chars, all types
High security
Database/API Key
32 chars, all types
Maximum security
Easy to Type
12 chars, no symbols
Mobile-friendly

📚 Understanding Password Security

Password strength is determined by length, character variety and randomness. Our tool uses cryptographically secure random generation (Web Crypto API) to create passwords that are impossible to predict.

Password Strength Levels:

  • Weak (< 40 bits entropy) - Easily crackable with basic tools. Not recommended for any account.
  • Fair (40-60 bits) - Vulnerable to dedicated attackers. Use only for low-value accounts.
  • Good (60-80 bits) - Resistant to most attacks. Suitable for general online accounts.
  • Strong (80-100 bits) - Highly secure. Recommended for important accounts (email, banking).
  • Very Strong (100+ bits) - Extremely secure. Perfect for databases, API keys and critical systems.

Character Types:

  • Uppercase (A-Z) - 26 characters. Increases password space significantly.
  • Lowercase (a-z) - 26 characters. Essential base for most passwords.
  • Numbers (0-9) - 10 characters. Required by many systems.
  • Symbols (!@#$%^&*...) - 32 characters. Dramatically increases entropy and strength.

Exclusion Options:

  • Similar Characters (i, l, 1, L, o, 0, O) - Prevent confusion when manually typing. Slightly reduces entropy but improves usability.
  • Ambiguous Characters ( [ ] ( ) / \ ' " ~) - Avoid issues with certain systems that misinterpret special characters. Reduces entropy more significantly.

Best Practices:

  • Use minimum 16 characters for important accounts
  • Include all character types (uppercase, lowercase, numbers, symbols)
  • Never reuse passwords across accounts
  • Store passwords in a secure password manager
  • Enable two-factor authentication (2FA) everywhere possible
  • Change passwords if you suspect a breach
  • Avoid dictionary words, names, dates and predictable patterns

Password Managers (Recommended):

  • Bitwarden - Open source, free tier available, excellent security
  • 1Password - Premium features, family sharing, travel mode
  • LastPass - Free personal use, good browser integration
  • KeePass - Offline, open source, maximum control

⚠️ Security Note: All passwords are generated locally in your browser. Nothing is transmitted to servers. Use this tool offline for maximum privacy.

❓ Frequently Asked Questions

Extremely secure. This tool uses the Web Crypto API's cryptographically secure random number generator (CSPRNG), the same technology used by password managers and security applications. Passwords are generated with true randomness, not predictable pseudo-random patterns. All generation happens locally in your browser - no passwords are transmitted or stored anywhere.

A strong password has: sufficient length (12+ characters), character variety (uppercase, lowercase, numbers, symbols), unpredictability (random, not dictionary words) and uniqueness (different for each account). Our tool calculates entropy to measure true randomness. Passwords with 60+ bits of entropy are considered strong, 80+ bits are very strong and 100+ bits are extremely strong.

Minimum 12 characters for general accounts, 16+ for important accounts (email, banking), 20+ for high-security systems and 32+ for database credentials and API keys. Longer passwords with all character types are exponentially harder to crack. The tool supports up to 128 characters for maximum security.

It depends. Excluding similar characters (i, l, 1, L, o, 0, O) helps prevent confusion when manually typing passwords. Excluding ambiguous characters ({ } [ ] ( ) / \ ' " ~) avoids issues with certain systems that misinterpret these characters. However, excluding characters reduces the password's character space and slightly lowers entropy. For maximum security, include all characters and use a password manager.

Yes. These passwords are suitable for any account: websites, email, banking, databases, API keys, WiFi and more. However, always store passwords securely in a password manager (Bitwarden, 1Password, LastPass) rather than writing them down. Never reuse passwords across accounts. Enable two-factor authentication (2FA) for added security.

Absolutely! All password generation happens locally in your browser using JavaScript and the Web Crypto API. No passwords are ever transmitted to our servers or any third party. You can use this tool completely offline. The passwords never leave your device unless you manually copy and use them.