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Guide

How to use this tool, examples, and related tips.

How to Use the Password Generator

Set your desired password length.

Toggle the character sets you want to include — uppercase, lowercase, numbers, symbols.

Click Generate (or let it auto-generate), then copy the password.

What Makes a Password Strong?

Password strength comes from two factors: length and entropy. Entropy is a measure of unpredictability — the more possible combinations a password could be, the harder it is to brute-force. A 16-character password drawn from a 94-character set (uppercase + lowercase + digits + symbols) has approximately 105 bits of entropy — far beyond what any current or near-future hardware can crack by brute force. The key requirements for a strong password are sufficient length (16+ characters recommended), a large character set, and true randomness — no predictable patterns or dictionary words.

When to Use This Tool

Creating account credentials — Generate strong passwords for new accounts, API keys, or admin credentials during setup.

Rotating compromised credentials — Quickly generate a replacement password when rotating after a breach or suspected exposure.

Generating service secrets — Create random strings for use as application secrets, webhook tokens, or internal API keys.

Populating test fixtures — Generate realistic-looking passwords for test data without using real credentials.

Related Tools

  • Passphrase generator
  • PIN generator
  • Random string generator
  • Bcrypt hash & compare
  • UUID generator

FAQ

Answers about this tool and how your data is handled.

How random are the generated passwords?

Passwords are generated using the browser's crypto.getRandomValues() API — a cryptographically secure random number generator. The output is not predictable or reproducible.

Does this tool send my passwords to a server?

No. Generation runs entirely in your browser. Nothing leaves your machine.

What password length should I use?

16 characters is a reasonable minimum for most accounts. For high-value credentials — admin accounts, API secrets, encryption keys — use 24 or 32 characters.

Should I use symbols in my passwords?

Yes, where the target system allows them. Symbols expand the character set from 62 to 94 characters, meaningfully increasing entropy per character.

What's the difference between a password and a passphrase?

A password is a random sequence of characters. A passphrase is a sequence of random words (e.g., correct-horse-battery-staple). Passphrases are easier to remember and can achieve equivalent entropy at greater length. Use the passphrase generator if you need a human-memorable credential.

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