Password Generator — Create Strong Random Passwords Instantly
Generate strong, random passwords with custom length, uppercase, lowercase, numbers, and symbols. 100% browser-based — never sent to any server. Free & secure.
Character Options
Tip: Use at least 12 characters with uppercase, lowercase, numbers, and symbols.
Tip: Never reuse passwords across multiple sites.
Frequently Asked Questions
Q. Does this password generator store my passwords?
No. All processing happens entirely in your browser using the Web Crypto API. Nothing is sent to any server. Your generated passwords are completely private.
Q. What makes a strong password?
A strong password has at least 12 characters and includes uppercase, lowercase, numbers, and symbols. 16+ characters provides even stronger protection.
Q. Can I use the same password for multiple sites?
Never. Each site should have a unique password. If one site is breached, attackers will try the same password on other services — a technique called credential stuffing.
Q. What special characters are included?
Standard ASCII symbols: !@#$%^&*()_+-=[]{}|;:,.<>? You can exclude ambiguous characters (0, O, l, 1) using the toggle.
Q. How should I manage generated passwords?
Use a password manager like Bitwarden (free), 1Password, or LastPass. They store passwords in an encrypted vault and auto-fill them securely.
Q. How is password strength calculated?
Strength is based on length (≥12, ≥16 chars) and character diversity (uppercase, lowercase, numbers, symbols), rated on a 5-level scale from Very Weak to Very Strong.
How to Use
Use the slider to choose password length from 6 to 64 characters.
Toggle uppercase, lowercase, numbers, and symbols as needed.
Click "Generate Password" to instantly create a secure random password.
Click "Copy" to copy to clipboard, then save it in your password manager.
Expert Knowledge: Password Generator — Create Strong Random Passwords Instantly
The most critical password security principles are uniqueness (different password per site) and complexity (varied character types). NIST's updated 2024 guidelines state that password length and uniqueness matter more than mandatory periodic changes. This tool uses the Web Crypto API (`crypto.getRandomValues()`) for mathematically unpredictable true randomness. Never use `Math.random()` for security-sensitive applications — it is predictable and cryptographically insecure.
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