Free Password Generator Online

A good password is one you cannot remember and that nobody can guess. Our free online Password Generator produces exactly that: long, high-entropy strings drawn from a cryptographically secure source of randomness, ready to drop straight into a password manager. The tool uses the browser's Web Crypto API (`crypto.getRandomValues`) for every character, which is the same primitive that browsers use for TLS handshakes and cryptographic key generation. That matters because the random number generators built into common languages — `Math.random()` in JavaScript, for instance — are not cryptographically secure and produce passwords that are statistically predictable to an attacker who is paying attention. The Web Crypto API does not have that problem. Every password you generate here is independent, unbiased, and impossible to predict from any previous output. You control the length (anywhere from 8 to 128 characters; we suggest 16 or more for any account that matters) and the character set: uppercase letters, lowercase letters, digits, and a curated set of special characters. You can also exclude visually ambiguous characters like 0, O, 1, l, and I if the password will ever need to be transcribed by hand or read aloud over a phone. The strength meter on the page is calculated from the actual entropy of the chosen settings, not from a list of "rules" — so a 20-character lowercase-only password correctly rates higher than a 10-character password that happens to include a symbol. The output appears in a one-line box with a copy-to-clipboard button. Nothing is logged, stored, sent over the network, or remembered between page loads. Close the tab and the password is gone forever — you should immediately paste it into a password manager (1Password, Bitwarden, KeePass, Apple Keychain, the browser built-in, or whatever you use) so you do not lose it. Common use cases include creating passwords for new accounts, rotating passwords on services after a breach notification, generating per-service unique passwords (you should never reuse a password between two accounts), creating database root credentials, and seeding API keys or shared secrets. The page works on any modern browser, on desktop and mobile, and is genuinely free — no signup, no trial, no daily limit.

Three quick real-world examples. (1) **Rotating a LinkedIn or Twitter password after a breach notice from Have I Been Pwned**: generate a 20-character password with all character classes, paste it into your password manager, then update the account. (2) **Creating a database root credential during server provisioning**: bump the length to 32, exclude ambiguous characters (since you may need to read the password aloud to a colleague), and store the result in your secrets vault. (3) **Generating a per-service API client secret for a CI/CD pipeline**: 24 characters, alphanumeric only (some legacy systems reject symbols), copy straight into the secret store. Each takes about ten seconds.

Why use this instead of alternatives? Compared to a built-in browser generator, this page gives you fine-grained control over length and character classes — most browsers cap at 20 characters and do not let you exclude ambiguous characters. Compared to a desktop password manager's generator, the trade-off is that the manager auto-saves the password to the right entry, which is genuinely useful for everyday account creation; this page is for the moments when the manager flow is not available (new server setup, headless environment, generating for someone else). Compared to other free online generators, the differentiator is the use of `crypto.getRandomValues` and a transparent zero-storage policy — many free tools rely on `Math.random` (insecure) or quietly log generated passwords. If you also need supporting random data, the [Random String Generator](/tools/random-string-generator) handles batch generation, the [Random Token Generator](/tools/random-token) produces UUIDs and API keys, and the [QR Code Generator](/tools/qr-code-generator) lets you encode the password into a QR code for easy import on a phone.