/free-tools/password-generator

Free Password Generator

Generate strong random passwords, memorable passphrases, and PIN codes. Everything runs in your browser — no login, no tracking, no storage.

Character groups
Options

🔒 Passwords are generated locally in your browser. Nothing is uploaded, stored, or tracked.

Result
Click Regenerate

Tips

  • Aim for 16+ characters or a 4+ word passphrase for accounts that matter.
  • Use a password manager instead of memorizing dozens of secrets.
  • Never reuse the same password across sites.

What makes a strong password?

Length is the single biggest factor. Every extra character multiplies the number of guesses an attacker needs. A 16-character random password drawn from all four groups (upper, lower, numbers, symbols) has roughly 100 bits of entropy — far beyond what modern hardware can brute-force in any reasonable timeframe.

Passwords vs. passphrases

A passphrase like river-anchor-copper-lantern is easier to remember and, at four or more random words, cryptographically strong. Random character passwords are shorter and better for saving in a password manager. Both are safe when generated properly.

Why secure randomness matters

Predictable randomness like JavaScript's Math.random is unsuitable for passwords. This tool uses window.crypto.getRandomValues, the browser's cryptographically secure generator, with rejection sampling to avoid modulo bias.

Never reuse passwords

When one site is breached, attackers try the leaked credentials against every other major service (credential stuffing). Unique passwords per account contain the damage to a single site.

Use a password manager

A reputable password manager (1Password, Bitwarden, iCloud Keychain, etc.) generates and stores strong unique passwords for every site. You only need to remember one strong master passphrase.

Common password mistakes

  • Using pet names, birthdays, or dictionary words alone.
  • Adding ! or 1 to a short weak password.
  • Reusing the same password across accounts.
  • Saving passwords in unprotected notes or spreadsheets.

Frequently asked questions

Is this password generator free?

Yes. It's 100% free, no login, no watermark, no limits. Generate as many passwords, passphrases, or PINs as you need.

Are my passwords stored?

No. Passwords are generated locally in your browser using window.crypto.getRandomValues. Nothing is uploaded, saved to storage, logged, or tracked.

Is this password generator secure?

Yes. It uses the browser's built-in cryptographically secure random number generator (window.crypto.getRandomValues). We never use Math.random for password generation, and generated values never leave your device.

What makes a strong password?

Length matters most. Aim for 16+ characters using a mix of uppercase, lowercase, numbers, and symbols — or use a 4+ word passphrase. Never reuse passwords between accounts.

Should I use a password or a passphrase?

Both work if they're long enough. Random passwords are shorter but harder to memorize. Passphrases (four or more random words) are easier to remember and can be just as strong at greater length.

Can I use this to generate PINs?

Yes. Switch to the PIN tab and pick a length between 4 and 12 digits. Perfect for door codes, safes, or app PINs.

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