Password Generator
Generate strong, random passwords with custom length, character sets, and complexity rules. Includes entropy and strength indicator.
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How to Use This Tool
Set your desired password length using the slider, choose which character types to include, then click Generate. Use the bulk option to generate multiple passwords at once. The strength meter shows entropy-based password strength.
Common Use Cases
- Generating secure credentials for new accounts and services
- Creating API keys and service account passwords
- Generating bulk test passwords for staging environments
- Producing temporary passwords for user onboarding flows
Frequently Asked Questions
How random are the generated passwords?
Passwords are generated using the Web Crypto API's crypto.getRandomValues(), which is a cryptographically secure random number generator built into your browser. This is the same randomness used in security-sensitive applications.
What makes a password strong?
Password strength depends on length and character variety. A 16-character password using all character types has over 95 bits of entropy — effectively uncrackable by brute force. Aim for at least 16 characters with uppercase, lowercase, numbers, and symbols.
Are generated passwords stored anywhere?
No. All passwords are generated entirely in your browser using JavaScript. Nothing is sent to any server. Closing or refreshing the page discards all generated passwords.
What does 'exclude ambiguous characters' do?
It removes characters that look similar in some fonts: 0 (zero) and O (letter O), 1 (one) and l (lowercase L) and I (uppercase i). Useful when passwords need to be typed by hand.