Secure Password Generator Online — Create Strong Passwords Free
Generate secure random passwords with customizable length and character sets.
Passwords are generated using the browser's secure random source. At least one character type should be enabled.
Privacy first: This tool runs entirely in your browser. Your data never leaves your device.
Generate strong, random passwords of any length with your choice of character sets — uppercase, lowercase, numbers, and symbols. Passwords are generated using the Web Crypto API for cryptographic randomness. Nothing is ever sent to a server — your passwords are generated and displayed only in your browser.
How to Use Password Generator
- Set the password length: Choose your desired password length using the slider or input field.
- Select character sets: Toggle uppercase letters, lowercase letters, numbers, and symbols on or off.
- Generate: Click "Generate" to create a new random password.
- Copy: Click "Copy" to copy the password to your clipboard.
Features
- Generates cryptographically random passwords using the Web Crypto API
- Configurable length from 4 to 128 characters
- Toggle uppercase, lowercase, numbers, and symbols independently
- Strength indicator showing password entropy
- Runs entirely in your browser — never sent to a server
- Free with no account required
Common Use Cases
Anyone creating a new account, updating an old weak password, or generating API keys and tokens can use this tool. Security professionals use it to create credentials for systems, databases, and service accounts.
Frequently Asked Questions
- How secure are the generated passwords?
- Passwords are generated using the Web Crypto API's getRandomValues(), which is a cryptographically secure random number generator. A 16-character password with all character types has extremely high entropy.
- Are my passwords stored or logged anywhere?
- No. Passwords are generated entirely in your browser and are never transmitted to any server. They exist only in your browser's memory until you navigate away.
- How long should my password be?
- Security experts generally recommend at least 16 characters for important accounts. Longer passwords with mixed character types are significantly harder to brute-force.
- Can I exclude ambiguous characters like "l", "1", and "O"?
- An option to exclude visually ambiguous characters may be available in the tool settings.