Secure Password Generator — Create Strong Passwords Fast
Create cryptographically secure passwords with our Password Generator. The tool offers three generation modes: random passwords, memorable passphrases, and pattern-based generation. Choose from various character sets (standard, alphanumeric, hexadecimal, or custom), exclude ambiguous characters, and generate up to 100 passwords simultaneously. The integrated password strength analyzer displays entropy, character set size, and estimated crack time. Export your passwords as TXT, CSV, or JSON.
NIST SP 800-63B CSPRNG Client-Side Only
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Features
- Customizable password length (8-128 characters)
- Include uppercase letters, lowercase letters, numbers, and symbols
- Exclude ambiguous characters (0,O,l,1, etc.)
- Generate multiple passwords at once
- Three modes: random passwords, EFF passphrases and pronounceable patterns
- Password strength indicator
- Copy to clipboard with one click
- 100% client-side - passwords never sent to server
Password Security Tips
- Length matters: Longer passwords are exponentially more secure
- Use all character types: Mix uppercase, lowercase, numbers, and symbols
- Avoid patterns: Don't use dictionary words or personal information
- Unique passwords: Never reuse passwords across different accounts
- Use a password manager: Store generated passwords securely
Common Use Cases
- User Accounts: Create secure passwords for new accounts
- API Keys: Generate random strings for API authentication
- Database Credentials: Secure database access with strong passwords
- Wi-Fi Networks: Create strong WPA2/WPA3 passwords
- Encryption Keys: Generate passphrases for encryption
- System Administration: Secure admin and root account access
Password Strength Guide
- Weak (< 8 chars): Easily cracked, avoid if possible
- Fair (8-11 chars): Minimum for most systems
- Good (12-15 chars): Recommended for important accounts
- Strong (16+ chars): Excellent security, hard to crack
- Very Strong (20+ chars): Maximum security for critical systems
Useful Resources
Wikipedia: Password Strength Beginner-friendly introduction to password security concepts
NIST SP 800-63B: Digital Identity Guidelines Official guidelines for password creation and authentication
OWASP Authentication Cheat Sheet Security best practices for password-based authentication
MDN Crypto.getRandomValues() Cryptographically secure random number generation API
EFF Diceware Passphrase Generator Alternative method for creating strong, memorable passphrases