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Secure Password Generator

Generate cryptographically secure passwords in your browser. No passwords are transmitted or stored anywhere.

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Password Generator
Generated using crypto.getRandomValues() — nothing leaves your browser.
Ctrl+Enter Generate
Configuration Secure random
Generated Passwords Read only output
Ready Browser only
Configure your password options and click Generate.

How ZeroData protects your privacy

  • ✓ No Uploads: Processing happens entirely via client-side JavaScript.
  • ✓ No Storage: We do not have a database. We physically cannot save your data.
  • ✓ No Tracking: We don't log what you process or track your inputs.
  • ✓ Verifiable: Check your DevTools Network tab. You will see 0 outbound requests.

How to Use the Secure Password Generator

  1. Set the desired password length using the slider (recommended: 16+ characters).
  2. Select the character types to include: uppercase, lowercase, numbers, and symbols.
  3. Choose how many passwords to generate (1 to 100).
  4. Click Generate Passwords, then copy or download the results.
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Frequently Asked Questions

Is this password generator safe to use online?

Yes. This tool uses the browser's native crypto.getRandomValues() API and generates passwords entirely on your device. No password data is ever sent to a server.

What makes a password 'cryptographically secure'?

Cryptographic security means the randomness comes from a hardware-seeded random number generator in your device, making the output unpredictable and resistant to brute-force attacks.

How long should my password be?

For maximum security, use at least 16 characters with all character types enabled. This provides approximately 100+ bits of entropy, which would take billions of years to crack.

Can I generate passwords in bulk?

Yes. You can generate up to 100 passwords at once. This is useful for seeding test databases or provisioning multiple accounts.

Are the generated passwords stored anywhere?

No. Passwords exist only in your browser's memory while the page is open. Closing or refreshing the page permanently destroys them.

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