Secure password generator
Generate random, secure passwords using crypto.getRandomValues(), the browser's cryptographic API, never Math.random().
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Builds the password character by character, choosing a cryptographically secure random index within the selected character set using rejection sampling.
- Uses crypto.getRandomValues(), not Math.random().
- Can exclude ambiguous characters like O, 0, I, l and 1.
- Shows a strength indicator based on real entropy.
Use cases
- Creating a new password for an account.
- Generating temporary credentials to share securely.
- Setting a minimum length standard for your team.
How it works
- 1
Adjust length and character types
Choose how many characters and which mix of uppercase, lowercase, numbers and symbols.
- 2
Copy the password
Copy the result or generate a new one with one click.
Privacy
The generated password only exists in this page's memory while you're viewing it: it's not saved in localStorage or sessionStorage, and QuickToolio never sends it to a server or includes it in its analytics events (which only record that the generator was used, never the generated value). If you click "Copy", it goes to your device's clipboard; what happens to it afterward (clipboard history, password managers, extensions) is no longer up to QuickToolio. Reloading or leaving the page loses the password.
Frequently asked questions
Is it safe to generate passwords in a browser?
Yes, as long as the Web Crypto API (crypto.getRandomValues) is used, the same secure randomness source that password managers rely on.
Do you store the passwords I generate?
No. The password only exists in your browser's memory while you view it; it is never stored or transmitted.