How to Generate Secure Passwords Online Free
Our password generator creates cryptographically secure passwords using your browser's built-in random number generator. Simply select your preferred options including length, character types, and special requirements, then click generate. All processing happens locally in your browser - your passwords are never sent to any server, ensuring complete privacy and security.
Password Security Features and Options
Customizable Character Sets
Choose from uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and special symbols (!@#$%^&*). You can also add custom characters and exclude similar-looking characters (i, l, 1, L, o, 0, O) or ambiguous symbols that might be difficult to distinguish in certain fonts.
Advanced Security Options
Generate passwords from 4 to 128 characters in length, create multiple passwords at once, and get real-time strength analysis with entropy calculations. Our tool shows estimated time to crack your password and provides specific recommendations for improving security.
Password Strength Analysis and Best Practices
Every generated password includes a comprehensive strength analysis showing the security score (0-100), entropy in bits, and estimated time to crack using modern hardware. Our analyzer checks for common patterns, character variety, and length to provide accurate security assessments. Follow our recommendations to create passwords that are both secure and suitable for your specific use case.
Privacy-First Password Generation
Your security is our priority. This password generator runs entirely in your browser using client-side JavaScript. No passwords are ever transmitted over the internet or stored on any server. You can even use this tool offline after the initial page load. All generation, analysis, and history features work locally to protect your privacy.
Frequently Asked Questions
Are the generated passwords truly random?
Yes, our generator uses your browser's crypto.getRandomValues() function, which provides cryptographically secure random numbers. This ensures that passwords are unpredictable and suitable for protecting sensitive accounts.
How long should my password be?
We recommend at least 12 characters for most accounts, with 16+ characters for sensitive accounts like banking or email. Longer passwords with mixed character types provide exponentially better security.
Should I exclude similar characters?
Enable this option if you'll be typing the password manually or sharing it verbally. It removes characters like 'i', 'l', '1', 'L', 'o', '0', 'O' that can be confused with each other in certain fonts.
Is it safe to generate passwords online?
Our generator is completely safe because it works offline in your browser. No data is sent to servers, and you can verify this by disconnecting your internet after loading the page - it will still work perfectly.
What makes a password strong?
Strong passwords are long, use multiple character types, avoid predictable patterns, and are unique for each account. Our strength analyzer evaluates all these factors and provides specific improvement suggestions.
Can I use this for business passwords?
Absolutely! The passwords generated are enterprise-grade and suitable for business use. However, we recommend using a corporate password manager to store and share passwords securely across your organization.