Generate strong, secure passwords instantly. Nothing is stored or sent anywhere — everything happens in your browser.
This tool uses your browser's built-in cryptographically secure random number generator to create passwords that are genuinely unpredictable — not a simple word-and-number combination that follows a pattern. Adjust the length slider and toggle which character types to include (uppercase, lowercase, numbers, and symbols), and a new password is generated instantly.
Everything happens locally in your browser — the password you generate is never transmitted, logged, or stored anywhere, including by this site. Once you've generated a password you're happy with, copy it directly into your password manager or the account you're setting up.
Never reuse passwords across sites. If one is breached, attackers try it everywhere.
Bitwarden and 1Password store all your passwords securely so you only remember one.
A 20-character password is exponentially harder to crack than a 12-character one.
Two-factor authentication adds a second layer — even if your password leaks, accounts stay safe.
For most accounts, aim for at least 16 characters. For highly sensitive accounts (email, banking, password manager master password), 20+ characters is recommended.
Yes where allowed — symbols significantly increase the number of possible combinations, making passwords harder to brute-force. Some older systems restrict certain symbols, so check the site's requirements if your password is rejected.
Yes. The password is generated entirely on your device using your browser's secure random number generator — the same technology used by password managers — and is never sent anywhere.
Yes, there's no limit. Click generate as many times as you like to get different options.
The most common misconception about password security is that complexity alone makes a password strong. In reality, length matters far more than complexity. A 16-character password made up of random lowercase letters is exponentially harder to crack than an 8-character password with uppercase, numbers and symbols. This is because brute-force attacks — where an attacker systematically tries every possible combination — scale with the number of possible combinations, which grows much faster with length than with character set size.
Modern password attacks rarely rely on brute force anyway. Dictionary attacks test millions of known passwords and common variations — things like Password123!
or Summer2024# — which appear complex but are trivially cracked because they follow predictable patterns.
Credential stuffing attacks use username and password combinations leaked from previous data breaches, which is why reusing passwords across services is one of the most dangerous habits in IT security.
A password that appears in any previous breach, no matter how complex, is effectively compromised.
This generator uses the Web Crypto API — the same cryptographic standard used by browsers for secure HTTPS connections — to produce genuinely random passwords. It runs entirely in your browser, meaning the generated password is never transmitted anywhere or stored. For maximum security, use a different password for every account and store them in a reputable password manager such as Bitwarden, 1Password, or the built-in password manager in your browser.
For organisations managing Microsoft 365, Azure, or any cloud platform, password policy is one of the most impactful security controls available. Microsoft's own research shows that enabling Multi-Factor Authentication (MFA) blocks over 99.9% of account compromise attacks — making the strength of the password itself almost secondary once MFA is in place. However, strong passwords remain essential for accounts where MFA cannot be enforced, service accounts, local administrator accounts, and any legacy systems still relying on password-only authentication.
Current NCSC (UK National Cyber Security Centre) guidance recommends using three random words as a passphrase for memorable passwords, and using a password manager for everything else. Enforcing regular mandatory password changes is no longer recommended — research shows it encourages predictable patterns (users just increment a number) and makes security worse, not better. Instead, focus on length requirements, breach detection, and MFA as the primary controls.
At minimum 12 characters for everyday accounts, 16+ for important accounts like email and banking, and 20+ for administrative accounts and password manager master passwords. Each additional character multiplies the difficulty of cracking exponentially.
Yes. The generator uses the browser's built-in Web Crypto API (window.crypto.getRandomValues) which produces cryptographically secure random values. The generated password never leaves your device — there's no server involved at all.
Including symbols increases the character set and adds some entropy, but length is more important. A 20-character password with only lowercase letters is stronger than a 10-character password with every character type. That said, many systems require at least one symbol, so the generator includes them by default.
Use a password manager. Bitwarden is free, open-source and well-audited. 1Password and Dashlane are strong paid alternatives. Never store passwords in a plain text file, spreadsheet, or sticky note. If you must write one down, keep it physically secure — not near your computer.