Strong Password Generator
Generate cryptographically secure random passwords with custom options
What is Strong Password Generator?
Strong Password Generator creates cryptographically secure random passwords using your browser's built-in crypto API. Customize the length and character types — uppercase, lowercase, numbers, and symbols — to match any password policy. Every password is generated locally in your browser and is never stored or transmitted anywhere.
How to Use This Tool
- Set the desired password length using the slider (8-128 characters)
- Toggle which character types to include (uppercase, lowercase, numbers, symbols)
- Click Generate to create a new random password
- Click Copy to copy the password to your clipboard
Common Use Cases
- Creating strong unique passwords for online accounts and services
- Generating random API keys and secret tokens for development
- Meeting complex password requirements (uppercase + number + symbol)
- Creating temporary passwords for team accounts or new user onboarding
Frequently Asked Questions
How secure are the generated passwords?
The passwords are generated using window.crypto.getRandomValues(), a cryptographically secure random number generator built into every modern browser. This is the same API used by password managers.
What makes a strong password?
A strong password is at least 12 characters long, uses a mix of uppercase, lowercase, numbers, and symbols, and is not based on dictionary words or personal information. This tool generates truly random passwords that meet all these criteria.
Are the passwords stored anywhere?
No. Passwords are generated entirely in your browser and exist only in your clipboard after copying. We have no server-side component and no way to see or store your passwords.