Generate a Strong Password Instantly
Create strong, random passwords instantly. Set length up to 64 characters, add symbols and numbers. 100% browser-based — your password never leaves your device.
Configure your options above, then click Generate.
What is this Password Generator?
Our Password Generator uses your browser's built-in cryptographic API (crypto.getRandomValues) to create truly random, secure passwords — unlike basic tools that rely on predictable Math.random(). You can set passwords from 6 to 64 characters and toggle uppercase letters, lowercase letters, digits, and symbols to meet any site's requirements. A real-time strength meter displays entropy in bits so you can see exactly how secure your password is before you use it. Nothing is sent to any server — the entire process runs offline in your browser, making it safe to use even for your most sensitive accounts.
Who needs a strong password generator?
Anyone with online accounts benefits from strong, unique passwords. This tool is especially useful when creating a new account on a sensitive service (email, banking, healthcare), when updating a compromised or reused password, or when setting up a new password manager vault. Security professionals, developers testing auth flows, and privacy-conscious everyday users all rely on tools like this.
How to generate a strong password — 3 steps
- Set your length — drag the slider to your desired password length. Aim for at least 16 characters for important accounts.
- Choose your character types — toggle uppercase, lowercase, digits, and symbols based on the target site's requirements. More variety = stronger password.
- Copy and save — click the copy button to grab your password, then save it immediately in your password manager. Do not reuse it on multiple sites.
How does this random password generator work?
This tool uses the browser's built-in crypto.getRandomValues() API to generate cryptographically random passwords. Unlike Math.random(), which is a predictable pseudo-random number generator, crypto.getRandomValues() is seeded from your operating system's entropy pool — making it suitable for security-sensitive applications. No data ever leaves your device.
What makes a password strong?
- Length — every extra character multiplies the search space exponentially. Aim for 16+ characters for important accounts.
- Variety — mixing uppercase, lowercase, digits, and symbols forces attackers to check a far larger character set per position.
- Uniqueness — never reuse passwords. A breach at one service must never compromise your other accounts.
- Unpredictability — avoid dictionary words, names, dates, and keyboard patterns like
qwerty123orP@ssw0rd.
Should I use a password manager?
Yes. It is impossible to memorise dozens of long random passwords. Password managers such as Bitwarden (open-source, free tier) or 1Password store your passwords encrypted behind a single master password. Generate a unique password for every site using this tool, save it in your manager, and only remember one strong master password.