The tool first builds a set of allowed characters based on your selections (uppercase, lowercase, etc.). It then uses the browser's `crypto.getRandomValues` API—a cryptographically secure random number generator—to pick characters from that set until the desired length is reached.

1. Adjust the 'Length' slider to set your desired password length.
2. Use the checkboxes to include or exclude uppercase, lowercase, numbers, and symbols.
3. A new, strong password will be generated automatically.
4. Click 'Regenerate' for a new one, or 'Copy' to copy the current password.

• Creating a new, secure password for an important account.
• Resetting a password after a security breach.
• Generating a random key for an application.

• Customizable Length: Choose a password length from 4 to 64 characters.
• Character Options: Include or exclude uppercase, lowercase, numbers, and symbols.
• Cryptographically Secure: Uses the browser's `crypto.getRandomValues` API for true randomness.
• One-Click Copy: Easily copy the generated password to your clipboard.

A password's strength comes from its 'entropy'—a measure of its unpredictability. A long password chosen randomly from a large set of characters (including letters, numbers, and symbols) has very high entropy, making it resistant to brute-force guessing attacks.

All calculations and data processing for this tool are performed locally in your browser. We do not send any of your data to our servers, ensuring your information remains private and secure.