What is Password Generator?
Password Generator creates strong, secure random passwords for your accounts and applications. It uses cryptographically secure random number generation to ensure passwords are truly random and unpredictable. The tool includes an entropy calculator to help you understand password strength.
How to Use Password Generator
- Set length - Choose a password length (recommended: 16+ characters)
- Select character types - Enable uppercase, lowercase, numbers, and symbols
- Generate - Click generate to create a new secure password
- Check entropy - Review the entropy score to ensure strong security
- Copy and use - Copy the password to your clipboard
Password Generator Features
- Customizable length - Generate passwords from 8 to 128 characters
- Character options - Include/exclude uppercase, lowercase, numbers, symbols
- Entropy calculation - Shows password strength in bits of entropy
- Strength indicator - Visual feedback on password strength
- Secure generation - Uses browser's crypto API for randomness
- One-click copy - Copy password instantly to clipboard
Frequently Asked Questions
What is password entropy?
Password entropy measures the randomness of a password in bits. Higher entropy means a password is more difficult to guess or crack through brute force. We recommend passwords with at least 60 bits of entropy for good security, and 80+ bits for high-security applications.
Are the generated passwords truly random?
Yes, this tool uses the Web Crypto API's cryptographically secure random number generator, which provides truly random values suitable for security purposes. This is much more secure than standard pseudo-random number generators.
Is it safe to use an online password generator?
This password generator runs entirely in your browser. Passwords are generated locally and never sent to any server. However, for maximum security, you should always use a reputable password manager to store your passwords rather than copying them to unencrypted storage.