Create cryptographically secure passwords instantly. Runs entirely in your browser — your passwords are never transmitted anywhere.
ExperToolBox's password generator creates truly random, cryptographically secure passwords using your browser's native crypto.getRandomValues() API — the same standard used by security software worldwide. Unlike generators that use Math.random(), our method is unpredictable and cannot be reverse-engineered.
Every password is generated locally in your browser. Nothing is ever sent to our servers — we don't even have a server-side component for this tool. Your passwords stay on your device and disappear when you close the tab.
Weak passwords are the leading cause of account breaches. An 8-character password using only lowercase letters can be cracked in under a second by modern hardware. A 16-character password mixing uppercase, lowercase, numbers and symbols would take billions of years to brute-force with today's technology. The difference is enormous.
Reusing the same password across multiple sites is equally dangerous. If one service is breached, attackers use credential stuffing to try your password on hundreds of other sites automatically. Every account should have a unique, randomly generated password — which is exactly what this tool provides.
Simply adjust the length slider to your desired password length and toggle the character types you want to include. For maximum security, use all four character types (lowercase, uppercase, numbers and symbols) and set the length to at least 16 characters. Click the refresh button to generate a new password, and copy it with one click.
The strength of a password depends on its length and the size of the character set used. A password using all four character types (95 possible characters) at 16 characters long has 95^16 possible combinations — approximately 4.4 × 10^31. At one trillion guesses per second, cracking it would take longer than the age of the universe.
For everyday accounts, 12–16 characters with mixed types is excellent. For highly sensitive accounts such as banking, email and password managers themselves, we recommend 20+ characters.