Secure Password Generator

Create highly secure, customizable, and unique passwords instantly.

Password Length: 16

8 128

Include:

Uppercase (A-Z) Lowercase (a-z) Numbers (0-9) Symbols (!@#$...)

Custom Symbols (Optional)

Exclude:

Similar Chars (l, 1, I, O, 0) Ambiguous Chars ({}, [], / \) Ensure at least one character from each selected type

Password Strength (Entropy)

Entropy: 0 bits | Strength: Too Short

Estimated Cracking Time: N/A

Documentation

Description

This is a comprehensive, client-side password generation tool designed with security as the top priority. It uses cryptographically secure pseudo-random number generation (CSPRNG) via JavaScript's `crypto.getRandomValues()` method, meaning the passwords generated are truly random and never leave your browser. The tool provides granular control over the password's character sets and length, and includes an advanced entropy meter to estimate the theoretical strength and cracking time of the generated output.

How to Use

• Set Length: Adjust the slider to select a password length between 8 and 128 characters. 16 characters or more is recommended.
• Select Character Sets: Check the boxes for Uppercase, Lowercase, Numbers, and Symbols to include them. The more sets included, the higher the password's complexity and entropy.
• Advanced Options: Utilize the **Exclude** options to remove visually similar (e.g., 'l' and '1') or ambiguous characters (e.g., backslashes) that can cause issues when typing or using certain systems.
• Enforce Unique Types: Check the "Ensure at least one character from each selected type" option to guarantee your password meets common security requirements.
• Monitor Strength: Observe the **Password Strength (Entropy)** meter. Aim for a green bar (100+ bits of entropy) for enterprise-level security.
• Generate & Copy: Click the **Generate New Password** button, and then click **Copy** to securely transfer the password to your clipboard.

Useful For

• Creating Master Passwords: Generating extremely high-entropy passwords for password managers.
• System Administration: Creating secure temporary or root passwords for servers and networks.
• Compliance: Generating passwords that strictly adhere to complex corporate or regulatory standards (e.g., requiring specific characters or excluding ambiguous ones).