Create strong, random passwords to protect your accounts. Fully customizable and secure.
Our free Secure Password Generator creates cryptographically strong, random passwords entirely in your browser. No data is ever sent to a server, no passwords are logged or stored, and the tool works completely offline. Customize length and character sets to generate passwords that meet any security requirement.
A secure password has two key properties: length and randomness. Length matters because every additional character exponentially increases the number of possible combinations an attacker must try. A 16-character password has trillions of times more possible combinations than an 8-character one, even using the same character set.
Randomness matters because predictable patterns — dictionary words, names, dates, keyboard walks like "qwerty" — dramatically reduce the effective search space for attackers. True randomness means each character is chosen independently with no pattern, making the password resistant to both brute-force and dictionary attacks.
This generator uses the browser's crypto.getRandomValues() API, which is a cryptographically secure pseudorandom number generator (CSPRNG). This is the same level of randomness used in cryptographic applications — far more secure than Math.random(), which is not suitable for security-sensitive use.
Generating a strong password takes just a few seconds. Here's how:
Always use a password manager to store your generated passwords. Since strong passwords are impossible to memorize, a password manager like Bitwarden, 1Password, or KeePass lets you use a unique, complex password for every account without needing to remember any of them. The only password you need to memorize is your master password.
Use a different password for every account. If one service is breached and your password is exposed, attackers will try that same password on other services (credential stuffing). Unique passwords for every account mean a breach at one site can't compromise your other accounts.
For the highest security, use passwords of at least 16 characters with all four character types enabled. If a site has a maximum password length, use the maximum allowed. Some older systems cap passwords at 8 or 12 characters — if you encounter this, consider whether the service takes security seriously enough to trust with sensitive data.
Many online password generators send your generated passwords to a server for processing, which creates a potential security risk — if the server is compromised or logs requests, your passwords could be exposed. This generator runs entirely in your browser using the Web Crypto API, so your passwords are generated locally and never transmitted anywhere.
The tool is also completely transparent: there are no hidden network requests, no analytics on what passwords you generate, and no cookies tracking your usage. You can verify this by opening your browser's developer tools and checking the Network tab — you'll see no outbound requests when generating passwords.
With support for passwords up to 64 characters and full control over character sets, this generator can meet the requirements of virtually any service, from basic consumer accounts to enterprise security policies.
Your privacy is our priority. All processing happens entirely in your browser using JavaScript. No files, data, or inputs are ever uploaded to any server. Everything stays on your device, making this tool completely safe to use with sensitive content.