Visit 👉 https://securepassword.dev

What This Tool Does

• Generates random passwords using crypto.getRandomValues() from the Web Crypto API.
• Uses rejection sampling to eliminate modulo bias, ensuring every character in the pool has an equal probability of being selected
• Guarantees at least one character from each selected character set, then shuffles with a crypto-secure Fisher-Yates algorithm to avoid positional bias
• Calculates and displays real-time entropy in bits so you can gauge password strength against brute-force attacks
• Generates base64URL encoded secrets that can be used as programmatic credentials

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Client-side Only

This generator runs entirely in the browser. No passwords are transmitted, stored, or logged on any server.