Password Generator Online - Create Strong Random Passwords

Password Generator - Create Strong Random Passwords Online

Create strong, secure, and random passwords instantly with our free online Password Generator. Customize length, character types, and rules to build passwords that meet any security requirement - all generated locally in your browser for complete privacy.

Our password generator uses the Web Crypto API ( crypto.getRandomValues ) to produce cryptographically secure random values, ensuring your passwords are unpredictable and safe from weak entropy sources like Math.random() . Choose uppercase letters, lowercase letters, numbers, symbols, exclude ambiguous characters, and set any length from 4 to 128 characters.

Key Features

Cryptographically Secure: Uses the Web Crypto API ( crypto.getRandomValues ) - never Math.random() .
Adjustable Length: Generate passwords from 4 up to 128 characters.
Character Rules: Toggle uppercase, lowercase, numbers, basic symbols, and extended symbols independently.
Ambiguous Character Exclusion: Optionally remove easily confused characters like Il1O0 .
Strength Meter: Real-time feedback showing Weak, Fair, Good, or Strong.
One-Click Copy: Copy your generated password to the clipboard instantly.
100% Private: All generation happens in your browser - nothing is sent to a server.

How to Use the Password Generator

Set your desired password length using the slider (default: 16 characters).
Toggle the character types you want to include (uppercase, lowercase, numbers, symbols).
Optionally enable "Exclude ambiguous characters" to remove Il1O0 and similar.
Click "Generate Password" to create a secure random password.
Click "Copy" to copy the password to your clipboard.

Frequently Asked Questions

1Is this password generator safe to use?

Yes. Passwords are generated using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure randomness. We never use Math.random(), which is not secure for password generation.

2Are my generated passwords sent to a server?

No. All password generation happens entirely in your browser. Your passwords never leave your computer, so they remain completely private.

3What is the recommended password length?

For most accounts, a length of 16-20 characters with all character types enabled provides excellent security. Longer passwords (24+ characters) offer even stronger protection against brute-force attacks.

4What does exclude ambiguous characters do?

It removes characters that are easy to confuse when reading or typing, such as uppercase I, lowercase l, the number 1, uppercase O, the number 0, and lowercase o. This is useful when passwords must be typed manually.

5How is password strength calculated?

Strength is estimated from the password's entropy: length multiplied by log2 of the pool size. A larger character pool and longer length produce more entropy and a stronger password.