Random Password Generator
Create strong, secure passwords instantly
How the Password Generator Works
Our password generator uses your browser's cryptographic random number API (crypto.getRandomValues) to create truly unpredictable passwords. This is the same technology used for secure encryption—attackers cannot predict or reproduce the results.
Set your desired length and character types, and the generator instantly creates a password. The strength meter analyzes your password in real-time, estimating how long it would take to crack using modern hardware.
Your privacy is guaranteed: All generation happens locally in your browser. We never see, store, or transmit your passwords. There's no server involved—just you and your device.
How to Use
- Set your desired password length using the slider (8-64 characters).
- Enable or disable character types (uppercase, numbers, symbols).
- The password generates automatically as you adjust settings.
- Check the strength meter to ensure adequate security.
- Click Copy to copy to your clipboard.
- Click Generate New if you want a different password.
- Paste into your password manager or the registration form.
Password Security 101
Why Random Passwords Matter
Attackers use "dictionary attacks" that try common passwords, words, and patterns. Passwords like "Password123!" or "Summer2024" are cracked instantly. Random passwords defeat these attacks entirely.
Understanding Crack Times
Modern GPU clusters can try billions of passwords per second. An 8-character lowercase password has 208 billion combinations—sounds like a lot, but can be cracked in under a minute. Adding length and character variety increases combinations exponentially.
The Math of Password Strength
- 8 lowercase letters: 208 billion combinations (cracked in seconds)
- 12 mixed-case letters: 4.7 × 10¹⁸ combinations (cracked in years)
- 16 characters with symbols: 10²⁸ combinations (cracked in centuries)
Password Best Practices
- Use a password manager: Store all passwords securely in one place.
- Unique passwords: Never reuse passwords across different sites.
- Enable 2FA: Add two-factor authentication wherever possible.
- Longer is better: 16+ characters for sensitive accounts.
- Avoid personal info: No birthdays, names, or addresses in passwords.
- Change compromised passwords: If a site is breached, update that password immediately.
Recommended Password Lengths
- Social media: 12-14 characters minimum
- Email accounts: 14-16 characters (email is the key to resetting others)
- Banking & financial: 16+ characters
- Password manager master: 20+ characters
- Work/corporate: Follow your IT policy (usually 14+)
- Throwaway accounts: 12 characters is fine, but still unique
Frequently Asked Questions
- Are my passwords stored anywhere?
- Absolutely not! Your passwords are generated entirely in your browser using JavaScript. Nothing is ever sent to our servers, stored in databases, or logged anywhere. Your password stays on your device.
- How strong should my password be?
- For most accounts, aim for at least 12 characters with a mix of uppercase, lowercase, numbers, and symbols. For sensitive accounts (banking, email, password manager), use 16+ characters.
- What does the strength meter show?
- The meter estimates password strength based on length and character variety. "Very Strong" passwords would take centuries to crack with modern computers, while "Weak" passwords could be guessed in minutes.
- Is longer always better?
- Yes, within reason. Each additional character exponentially increases the time needed to crack a password. A 16-character password is vastly stronger than an 8-character one, even with the same character types.
- Should I use all character types?
- Including uppercase, lowercase, numbers, and symbols creates the strongest passwords. However, some sites have restrictions. Uncheck options that a specific site doesn't allow.
- How do I remember these passwords?
- Don't try to memorize them! Use a password manager like Bitwarden, 1Password, or your browser's built-in manager. These securely store all your passwords behind one master password.
- Can I use this password for everything?
- Never use the same password for multiple accounts. If one site is breached, attackers try that password everywhere. Generate a unique password for each account.
- Is this better than making up my own password?
- Yes! Humans are bad at randomness. We tend to use predictable patterns, names, and dates. This generator uses cryptographic randomness that attackers cannot predict or guess.