Password Generator
Password Settings
Why Strong Passwords Matter
Weak passwords are the leading cause of account breaches. A password like “password123” can be cracked in milliseconds. A strong, randomly generated password with high entropy can take billions of years to crack with current technology — even using every computer on Earth.
How to Use This Password Generator
- Set your desired password length using the slider. Longer passwords are exponentially more secure — 16+ characters is recommended.
- Toggle which character types to include: uppercase letters, lowercase letters, numbers, and symbols.
- Enable “Exclude Similar Characters” to remove confusing characters like i, l, 1, L, o, 0, and O.
- Check the entropy meter and estimated crack time to understand how secure your password really is.
- Click the copy button to copy the password, or click Regenerate for a new one.
Frequently Asked Questions
Are these passwords stored anywhere?
No. Passwords are generated entirely in your browser using cryptographically secure random number generation. They are never sent to any server or stored — not even in your browser after you close the tab.
What is password entropy?
Entropy measures randomness in bits. Higher entropy = more possible combinations = harder to crack. A password with 60+ bits of entropy is considered strong. 100+ bits is extremely secure.
Should I use this for my actual passwords?
Yes, these passwords are generated using crypto.getRandomValues(), the same cryptographic standard used by password managers. But we recommend using a dedicated password manager (like Bitwarden or 1Password) to store them — this tool generates them; it doesn't save them.