Random Password Generator
Generate secure, random passwords offline using cryptographically secure browser API. No data sent to servers.
Secure & Random Password Generator (Offline-Capable)
Generate strong, unique passwords instantly with our browser-based password generator. Your passwords are created locally using cryptographically secure random number generation - nothing is ever sent to our servers.
Why Security Experts Trust Browser-Side Generation
Zero-Knowledge Architecture: Since this tool runs entirely in your browser’s local context, even we (the site owners) can never see the passwords you generate. The cryptographic operations happen on your device, using your browser’s native window.crypto.getRandomValues API.
Cryptographically Secure: Unlike simple random number generators that use predictable algorithms, our tool leverages the Web Crypto API which provides true randomness suitable for security-sensitive applications.
Offline-Capable: Once loaded, this tool works completely offline. No internet connection is required to generate passwords, making it perfect for use in secure environments or when you’re disconnected.
How It Works
- Character Pool Selection: Choose which character types to include (uppercase, lowercase, numbers, symbols)
- Length Configuration: Set your desired password length (8-128 characters)
- Secure Randomization: The browser’s crypto API generates random values for each character position
- Entropy Calculation: We calculate password strength in bits - higher entropy means stronger passwords
- Instant Generation: Your password appears instantly, ready to copy and use
Password Strength Guide
- Very Weak (< 28 bits): Easily crackable, avoid for any sensitive accounts
- Weak (28-35 bits): Basic protection, suitable for low-risk accounts
- Moderate (36-59 bits): Good for most everyday accounts
- Strong (60-79 bits): Recommended for important accounts like email and banking
- Very Strong (80+ bits): Maximum security for critical accounts
Security Best Practices
- Use unique passwords for every account
- Enable two-factor authentication (2FA) wherever possible
- Consider using a password manager to store your generated passwords
- Change passwords regularly for high-security accounts
- Never share passwords via email or messaging apps