Password Generator
Generate a strong, random password instantly — cryptographically secure, never saved or transmitted.
Generated entirely in your browser using the Web Crypto API — this password is never transmitted anywhere or saved. Refresh the page and it's gone.
How it works
Set your length and character types
Choose how long the password should be and which character types to include.
Get an instant, secure password
A new password generates automatically, drawn from your browser's cryptographically secure randomness.
Copy it and save it properly
Copy with one click, then store it in a password manager rather than memorizing or writing it down.
What people use a password generator for
A fresh, random password is faster to generate than to invent.
New account signups
Temporary admin credentials
Rotating after a breach
Company security policies
Router & Wi-Fi passwords
A few things worth knowing about password strength
What actually makes a password hard to crack is less about clever substitutions and more about two things: length and genuine randomness. Swapping "a" for "@" or adding "123!" to the end of a word you already use feels like it adds security, but attackers' cracking tools already account for those exact patterns — a long password made of unrelated random characters is dramatically harder to break than a short, "clever" one, even when the clever one looks more complex at a glance. That's why this tool leans on length as the main lever and treats character variety as a secondary boost, not the whole story.
Genuine randomness matters just as much as length. A password a person invents — even one they believe is random — tends to follow subtle patterns: familiar keyboard paths, common substitutions, a structure that feels arbitrary but isn't. That's exactly the gap between human-generated and machine-generated randomness, and it's why this tool draws its characters from the Web Crypto API's cryptographically secure random number generator instead of a simpler random function — the same class of randomness used to generate encryption keys, not just a low-stakes shuffle.
Reusing one password across multiple accounts is one of the most common ways a single data breach turns into several. When a site gets breached and passwords leak, attackers routinely try that same email-and-password pair against other popular sites — a technique called credential stuffing — so a password that's unique to each account means one leak doesn't cascade into the rest of your accounts. The practical way to manage dozens of unique, long passwords without losing your mind is a password manager: generate a password here, save it there, and let the manager remember it instead of you.
Frequently asked questions
How random are these passwords, really?
This generator uses the Web Crypto API's crypto.getRandomValues(), which draws from your browser's cryptographically secure random number source — the same kind of randomness used for encryption keys — rather than Math.random(), which is not designed to be unpredictable enough for security purposes.
Is my password sent anywhere or saved?
No. The password is generated entirely in your browser and never transmitted to a server or stored anywhere. Once you navigate away or refresh the page, it's gone unless you saved it yourself.
What makes a password actually strong?
Length matters more than most people expect — a longer password is dramatically harder to crack than a short one stuffed with substitutions like "@" for "a". Real randomness matters too: a password a human invents, even one that feels random, tends to follow patterns that make it more guessable than one generated by a proper random process.
Why shouldn't I reuse the same password on multiple sites?
If one site with your password gets breached, attackers routinely try that same email-and-password combination on other sites — a practice called credential stuffing. A unique password per account means one breach doesn't put your other accounts at risk too.
How should I store the passwords this generates?
Use a password manager rather than memorizing them or writing them down in a plain text file or note. A password manager lets you keep every password unique and long without needing to remember any of them yourself.
Is this password generator free to use?
Yes, completely free, with no account or sign-up, and it runs entirely in your browser.