Password Generator — Create Strong Passwords Instantly
Generate cryptographically secure random passwords instantly. Choose length (8–128 characters), include or exclude uppercase letters, lowercase letters, numbers, and symbols. Passwords are generated entirely in your browser using the Web Crypto API — nothing is sent to any server.
Part of Yoopla's 435+ free browser tools.
How to Use Password Generator — Strong & Secure Random Passwords
- 1
Set your desired password length using the slider — 16 characters is a good default for most accounts.
- 2
Toggle the character types you want: uppercase (A–Z), lowercase (a–z), numbers (0–9), and symbols (!@#$...).
- 3
Click "Generate Password" — a new random password appears instantly using your browser's crypto API.
- 4
Click the copy icon or "Copy" button to put the password in your clipboard.
- 5
Generate as many passwords as you need — each click produces a completely new, independent random result.
Frequently Asked Questions
How are the passwords generated — are they truly random?▾
Yes. Passwords are generated using window.crypto.getRandomValues(), the Web Crypto API built into all modern browsers. This is a cryptographically secure pseudorandom number generator (CSPRNG) — the same type of randomness used by password managers and security software. It is fundamentally different from Math.random(), which is not cryptographically secure and should never be used for passwords.
How long should my password be?▾
Security experts recommend at least 16 characters for account passwords, and 20+ for high-value accounts like email, banking, and password managers. Length is the single most important factor: a random 16-character password takes billions of years to brute-force, while an 8-character password can be cracked in hours with modern hardware. If the site has a limit, use the maximum allowed.
Should I include symbols in my passwords?▾
Including symbols increases the character set size, which dramatically increases password entropy. A 12-character password using only lowercase has 26^12 ≈ 95 trillion combinations. Adding uppercase, numbers, and symbols expands this to 94^12 ≈ 475 quadrillion combinations — about 5,000× harder to crack. However, if a site does not accept symbols, a longer all-alphanumeric password can be equally strong.
Are the generated passwords stored anywhere?▾
No. Password generation happens entirely in your browser — no data is sent to any server, no passwords are logged, and no cookies or local storage are used to remember generated passwords. Once you navigate away from the page, the generated password is gone. This is by design for your security.
Should I use a password manager with these passwords?▾
Absolutely yes. A random 16+ character password is excellent but impossible to memorize. A password manager (Bitwarden, 1Password, KeePass) stores your passwords securely so you can use a different strong password on every site without remembering them all. Using the same password on multiple sites is one of the most common causes of account takeovers — a breach at one site exposes all your accounts.
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Our security tools never send your data to any server. Passwords are generated using your browser's built-in crypto API, hashes are computed locally, and password strength is evaluated without network requests. Your security is our priority.
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