Toolwinder
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UUID & Password Generator

Generate UUID v4s, secure passwords, and random strings. Runs completely in your browser.

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About This Tool

Generates UUID v4s, secure passwords, and random strings using the browser's cryptographic random number generator rather than Math.random. Exclude visually ambiguous characters like 1, l, and I when a password needs to be typed out by hand.

Frequently Asked Questions

Are the generated UUIDs and passwords cryptographically secure?+
Yes. Everything is generated using the browser's crypto.getRandomValues API (and crypto.randomUUID for UUIDs where available), not Math.random.
Can I exclude ambiguous characters like 1, l, and I?+
Yes, enable 'Exclude ambiguous' in the Password tab to remove easily confused characters such as i, l, 1, L, o, 0, O.
Is anything generated or transmitted to a server?+
No. UUIDs, passwords, and random strings are all generated locally in your browser and never leave your device.

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