🔑Password Generator

How to Use

1. 1

   Set length

   Use the slider or input to choose a password length between 4 and 128 characters.

2. 2

   Choose character types

   Toggle uppercase, lowercase, numbers, and symbols as needed.

3. 3

   Generate

   Click "Generate" to create a cryptographically secure random password.

4. 4

   Copy

   Click "Copy" to copy the password to your clipboard.

FAQ

Is the generated password truly random?

Yes. Passwords are generated using the Web Crypto API (crypto.getRandomValues()), which produces cryptographically secure random numbers. No Math.random() is used.

Is my password sent to a server?

No. Everything runs in your browser. No data is transmitted to any server, and no passwords are stored anywhere.

How long should my password be?

At minimum 12 characters for personal accounts, 16+ for financial or sensitive accounts. Longer is always better — 20+ characters with mixed character types is recommended.

What does entropy mean?

Entropy (measured in bits) represents how hard the password is to brute-force. It is calculated as log2(charset_size ^ length). A password with 70+ bits of entropy is considered strong against modern attacks.

Why exclude ambiguous characters?

Characters like 0 (zero), O (uppercase o), l (lowercase L), and I (uppercase i) look similar in many fonts. Excluding them prevents confusion when reading or manually typing passwords.