Privacy Secured: This utility runs 100% inside your browser. No files, logs, or values are uploaded to any server. Your information stays safe on your device.
About Password Generator
The Password Generator is a secure client-side utility designed to create random passwords. In an era of constant security breaches, using unique, high-entropy passwords for every account is essential. Our tool lets you customize password length and character sets, and includes a real-time strength meter that calculates the mathematical entropy of your generated password.
How it Works
Adjust the length slider (6 to 64 characters) and select the character sets you want to include (Uppercase, Lowercase, Numbers, Symbols). The tool generates a secure password instantly using cryptographically secure random numbers. You can click the copy button to copy the password to your clipboard, or click refresh to generate a new one.
Key Features
- Secure Generation: Uses crypto.getRandomValues for random numbers.
- Custom Options: Control length and character sets.
- Strength Meter: Real-time feedback on password entropy.
- Copy Button: One-click copying to your clipboard.
Technical Details
The generator uses the browser's built-in Web Cryptography API (window.crypto.getRandomValues) instead of Math.random() to ensure cryptographically secure randomness. It calculates password entropy based on length and pool size ($E = L \times \log_2(P)$) to determine the strength category (Weak, Medium, Strong, Excellent).