Security & Encoding
Security Tools Browser Only

Free Password Generator Online

Cryptographically random passwords using Web Crypto API. Your password never leaves your browser.

8M8sWx#1XKI>S2G#,NX}
StrengthVery Strong
20
8128
Password generated using crypto.getRandomValues() — never sent to any server.

About This Tool

Cryptographically Secure

Uses crypto.getRandomValues() — the same API used by cryptographic libraries worldwide.

Fully Configurable

Choose length from 8–128, toggle character sets, exclude visually ambiguous characters.

Zero Network Requests

Your password is generated and stays in your browser. Nothing is transmitted.

How to Use

  1. 1

    Set password length

    Drag the length slider or type a value from 8 to 128 characters.

  2. 2

    Choose character sets

    Toggle uppercase (A–Z), lowercase (a–z), numbers (0–9), and symbols (!@#$...) on or off.

  3. 3

    Optionally exclude ambiguous characters

    Enable "Exclude ambiguous" to avoid characters like 0, O, l, I that look similar.

  4. 4

    Click Generate

    A new cryptographically random password appears instantly.

  5. 5

    Copy to clipboard

    Click the copy button to copy the password ready to paste into your account or password manager.

Frequently Asked Questions

Is this password generator free?+
Yes, completely free with no sign-up and no limit on how many passwords you generate.
Is the generated password really secure?+
Yes. Passwords are generated using the Web Crypto API (crypto.getRandomValues()), which is a cryptographically secure random number generator built into your browser. The password never leaves your device.
What makes a strong password?+
A strong password is at least 16 characters long and uses a mix of uppercase, lowercase, numbers, and symbols. Avoid dictionary words, names, or predictable patterns like "Password123".

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