How long should a password be?

A password should be at least 12-16 characters long. Longer passwords are exponentially harder to crack. For critical accounts, use 20+ characters.

Are generated passwords safe?

Yes, this tool generates passwords using the browser's cryptographically secure random number generator (crypto.getRandomValues). Passwords are generated locally and never stored or transmitted.

Should I use the same password for multiple accounts?

No. Always use a unique password for each account. A password manager can help you generate and store unique passwords securely.

What makes a password strong?

A strong password has: sufficient length (12+ characters), mix of uppercase and lowercase letters, numbers, and special symbols. Avoid dictionary words, personal info, or patterns.

Can this tool be used offline?

Yes. Once loaded, this tool works completely offline. All password generation happens in your browser using JavaScript.

Random Password Generator

Generate strong, random passwords instantly. Customize length, characters, and copy to clipboard.

Password Length: 16

Uppercase (A-Z)

Lowercase (a-z)

Numbers (0-9)

Symbols (!@#$%)

Generated Password

Strength Indicator

Generate a password to see strength

Uppercase0

Lowercase0

Numbers0

Symbols0

About this Password Generator

This tool generates strong, random passwords using your browser's cryptographically secure random number generator. Passwords are created locally and never stored or transmitted. Use it to create secure passwords for any account.

📘 How to use

Adjust the length slider or click a preset (8, 12, 16, 24, 32).
Toggle checkboxes for uppercase, lowercase, numbers, symbols.
Click Generate Password to create a new random password.
Review the strength indicator and character counts.
Click Copy to copy to clipboard or Download to save as text file.

❓ Security tips

Use at least 12-16 characters for most accounts.
Enable two-factor authentication wherever possible.
Never reuse passwords across multiple accounts.
Consider using a password manager to store passwords securely.

Frequently Asked Questions

Is this tool free to use?

Yes. All UpTools calculators and generators are completely free, with no sign-ups required.

Is my data private?

Yes. All password generation runs locally in your browser. Nothing is stored or uploaded.

How secure are generated passwords?

This tool uses the browser's crypto.getRandomValues() API, which is cryptographically secure and suitable for generating passwords.

Can I use this offline?

Yes. Once loaded, this tool works completely offline. No internet needed for password generation.

What's the maximum password length?

You can generate passwords up to 128 characters long. For most use cases, 16-32 characters is ideal.

📐 How This Tool Works

This tool uses the Web Crypto API (crypto.getRandomValues()) to generate cryptographically secure random characters from your selected character sets.

Passwords are generated entirely in your browser — no data is sent to any server.

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✅ Do's and ❌ Don'ts for Password Security

✅ Do's

✅ Do use unique passwords for every account.
✅ Do use at least 12-16 characters.
✅ Do enable two-factor authentication (2FA).
✅ Do use a password manager to store credentials.
✅ Do change passwords immediately if a breach is reported.

❌ Don'ts

❌ Don't use personal info (names, birthdays) in passwords.
❌ Don't reuse passwords across multiple accounts.
❌ Don't share passwords via email or messaging.
❌ Don't use common words like "password" or "123456".
❌ Don't write passwords on sticky notes or in plain text files.