Need a strong password? Try Our Password Generator to create complex passwords that will keep your information safe.
Your password's strength:
Estimated time to crack:
- Generated locally using
crypto.getRandomValues()— the browser's cryptographically secure RNG. - No server requests. No logging. No analytics on your generated values.
- The page is delivered over HTTPS with TLS 1.3 encryption.
How GenPassword Works
GenPassword is a single-page web app that runs entirely in your browser. When you click Generate, your browser's built-in cryptographic random number generator produces a sequence of characters drawn from the character classes you've selected (uppercase, lowercase, digits, symbols). The result appears instantly on screen and is yours alone — there's no network round-trip, no server involvement, no third-party SDK that sees the value.
Behind the scenes, we use the Web Crypto API — the same primitive that powers TLS handshakes, JWT signing, and password manager generators. It's exposed in every modern browser (Chrome, Firefox, Safari, Edge) and is suitable for everything short of military-grade key generation.
What Makes a Password Strong
Length beats complexity
A 20-character random password takes longer to crack than a 12-character one with weird substitutions. Aim for at least 16 characters; 20+ for accounts that matter.
Randomness matters
Predictable patterns (Password123!, qwerty, dictionary words) are tested first by attackers. True randomness eliminates these shortcuts.
Uniqueness per site
Reusing a password across sites means one breach compromises all of them. Use a different password for every account — a password manager makes this practical.
Character variety
Mixing uppercase, lowercase, digits, and symbols expands the search space exponentially. The generator lets you toggle each class to match site-specific rules.
Tools You Might Need Next
Test password strength — check how long any password would take to crack, powered by zxcvbn.
Tips to secure your passwords — practical guidance on storing, sharing, and rotating credentials.
Manage third-party app permissions — audit OAuth apps that have access to your accounts.
String utilities — 80+ free tools for encoding, decoding, and transforming text (Base64, ROT13, hex, binary, and more).
Read the password strength guide — what actually makes a password strong, in plain language.
Frequently Asked Questions
Is GenPassword free? +
Yes. Completely free, no signup required, no usage limits. Every tool works without an account.
Are my passwords stored or sent to a server? +
No. All password generation happens locally in your browser. Generated passwords never leave your device, are not logged, and are not stored anywhere on our servers.
How random are the generated passwords? +
GenPassword uses crypto.getRandomValues() — the browser's cryptographically secure pseudo-random number generator (CSPRNG). This is the same primitive used by web banking applications, password managers, and TLS implementations.
What password length should I choose? +
For most accounts, use at least 16 characters with a mix of uppercase, lowercase, numbers, and symbols. For high-value accounts (banking, primary email), 20+ characters is recommended. Length matters more than complexity — a 20-character random password is exponentially harder to crack than a 12-character one with special rules.
Should I use a passphrase or a random password? +
Passphrases (e.g., "correct-horse-battery-staple") are easier to memorize and just as strong as random passwords when long enough. Use passphrases for accounts you need to type from memory; use random passwords for everything else and store them in a password manager.
Can I use these passwords for any website? +
Yes. Generated passwords work on any site that accepts standard ASCII characters. If a site has length or character restrictions, adjust the generator settings before generating to match those requirements.