Password Generator
Create strong, random passwords instantly — 100% in your browser.
Updated June 2026
How to use the Password Generator
- 1
Set the length
Pick how many characters you want, anywhere from 4 to 64. Longer is stronger; 16+ is a good default.
- 2
Choose character sets
Toggle uppercase, lowercase, numbers, and symbols. More sets means a larger, stronger character pool.
- 3
Generate and copy
Click Generate for a fresh password, then Copy to put it on your clipboard. Nothing is saved.
About this tool
A password generator builds strong, random passwords so you do not have to invent them yourself. Reused or predictable passwords are the single biggest cause of account takeovers, and humans are notoriously bad at making truly random strings. This generator creates high-entropy passwords from the character sets you choose, at any length between 4 and 64 characters.
Everything happens locally in your browser. The password is produced with the Web Crypto API (crypto.getRandomValues), the same cryptographically secure randomness source browsers use for encryption — not the predictable Math.random. Your generated password is never sent to a server, never logged, and never stored. Close the tab and it is gone.
For the strongest results, keep all four character sets enabled and use a length of 16 or more. Longer passwords with a larger character pool are exponentially harder to crack. Pair this with a password manager so you can use a unique, generated password for every account without having to memorize any of them.
Examples
Input
16 characters, all sets enabled
Output
e.g. 'k9$Lm2@pX7!qWz4R'
Output is random — you get a different password every time you click Generate.
Input
20 characters, letters and numbers only (no symbols)
Output
e.g. 'h7Tq2mLp9Rk4Wn8Vx3Z'
Useful where a site rejects special characters.
Input
12 characters, lowercase only
Output
e.g. 'qmtkfbrnzpwd'
Lower entropy — enable more sets for stronger passwords.
Common uses
- Creating a unique, strong password for a new account instead of reusing an old one
- Generating a high-entropy master password or passphrase for a password manager
- Producing API keys, database passwords, or service credentials for a development project
- Making a quick throwaway password for a temporary or one-time login
- Replacing a weak or breached password with a longer, random one after a security alert
- Generating Wi-Fi or router admin passwords that are hard to guess
Frequently asked questions
Is this password generator free?+
Yes. It is completely free with no sign-up, no limits, and no ads injected into your results.
Are my passwords sent anywhere?+
No. Passwords are generated entirely in your browser and are never transmitted, logged, or stored. Close the tab and they are gone.
Is the randomness actually secure?+
Yes. It uses the Web Crypto API (crypto.getRandomValues), a cryptographically secure random source, with rejection sampling to avoid bias — not the predictable Math.random.
How long should my password be?+
16 characters or more is recommended for important accounts. Longer passwords with more character types are exponentially harder to crack.
What characters can the password contain?+
Uppercase A–Z, lowercase a–z, digits 0–9, and the symbols !@#$%^&*()-_=+[]{};:,.? — you choose which sets are included.
Related tools
Embed this tool
Free to use on your own site — it stays fast and private for your visitors.
Paste this where you want the tool to appear:
<iframe src="https://hypercho.com/embed/password-generator" title="Password Generator by Hypercho" width="100%" height="560" style="border:1px solid #d8cec3;border-radius:16px;max-width:720px" loading="lazy"></iframe>
<p style="font:13px sans-serif"><a href="https://hypercho.com/tools/password-generator" target="_blank" rel="noopener">Password Generator</a> by <a href="https://hypercho.com" target="_blank" rel="noopener">Hypercho</a></p>