Password Generator
Strong, random passwords in one click.
A strong, unique password is the single best defense for any online account, yet most people reuse the same handful of easy-to-guess words everywhere. This Password Generator builds random passwords for you in the browser, so you can give every login its own credential without straining your memory. You choose the length and which character types to include, and the tool assembles a fresh password on the spot.
Everything runs locally using your browser's built-in Web Crypto API for cryptographically secure randomness. Nothing you generate is sent to a server, logged, or stored anywhere. The tool also shows a live strength estimate in bits of entropy, so you can see at a glance how hard a password would be to crack and adjust the settings until you are comfortable.
Password
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How to use the password generator
- Drag the length slider to pick how many characters you want, anywhere from 4 to 64.
- Check the boxes for the character types to include: lowercase letters, uppercase letters, digits, and symbols.
- Watch the strength estimate update in bits of entropy as you change the settings.
- Read the generated password from the output field, or nudge the slider to generate a new one.
- Copy the password and paste it into the signup or password-change form for your account.
Worked example
Suppose you set the length slider to 16 and enable all four character types: lowercase, uppercase, digits, and symbols. The tool produces a sixteen-character password that mixes letters of both cases with numbers and punctuation, and it guarantees at least one character from each class you selected, so you will never end up with an all-lowercase result by chance. A password like this lands well above 90 bits of entropy, which is far beyond what current cracking hardware can brute-force in any practical timeframe. If a site rejects symbols, simply uncheck that box and raise the length to keep the strength high.
Common mistakes to avoid
- Turning off too many character types to make a password easier to type, which shrinks the pool of possibilities and weakens it sharply.
- Choosing a very short length like 4 or 6 because it is convenient, when short passwords fall quickly to automated guessing.
- Reusing one generated password across several accounts instead of creating a separate one for each login.
- Generating a strong password but then saving it in an unprotected note or plain text file rather than a trusted password manager.
Frequently asked questions
Are these passwords safe?
They are generated locally in your browser using the crypto API and never transmitted anywhere.
What does the bits of entropy number actually mean?
<p>Bits of entropy measure how unpredictable a password is. Each additional bit doubles the number of possible passwords an attacker would have to try. As a rough guide, more than 70 bits is considered strong for everyday accounts, and adding length or more character types raises the number. The estimate updates live so you can tune your settings toward a value you trust.</p>
How should I store the passwords I create here?
<p>The best practice is a dedicated password manager, which encrypts your credentials and fills them in for you so you never have to memorize a long random string. Avoid keeping passwords in a plain document, an email to yourself, or a sticky note. Because this tool never transmits or saves what it generates, moving the password into your manager right away is up to you.</p>
Can I use this to make other kinds of random codes?
<p>Yes. By adjusting the length and character types you can produce PINs, Wi-Fi keys, API tokens, or temporary access codes as well as account passwords. If you need to share a login or a link quickly, you might also pair it with our <a href="/tools/qr-code-generator/">QR Code Generator</a> so the recipient can scan rather than retype it.</p>