Password Generator

Generate strong, secure passwords instantly. Completely free, no sign-up required.

How to Use This Free Password Generator

Creating a strong password takes just a few seconds. No account, no downloads, no learning curve:

1. Adjust the length using the slider. Longer passwords are stronger. We recommend at least 16 characters for important accounts.
2. Choose your character types. Toggle uppercase letters, lowercase letters, numbers, and symbols on or off depending on the requirements of the site or app you are creating a password for.
3. Click Generate to create a new password, or let the tool generate one automatically when you change any setting.
4. Copy your password using the Copy button and paste it into the site where you need it. Store it in a password manager for safekeeping.

The strength meter below the password shows how resistant it is to brute-force cracking attempts. The stats panel displays the character pool size, entropy (measured in bits), and the estimated time it would take to crack your password at 10 billion guesses per second.

What This Free Password Generator Creates

Our free password generator uses crypto.getRandomValues(), the cryptographically secure random number generator built into every modern browser. This is the same standard used by password managers like 1Password and Bitwarden.

You get full control over your password:

• Adjustable length from 4 to 128 characters. Slide to choose exactly the length you need.
• Character type controls. Toggle uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and symbols (!@#$%^&*) independently.
• Visual strength meter. Instantly see whether your password is Weak, Fair, Strong, or Very Strong based on its entropy.
• Entropy calculation. See the mathematical randomness of your password expressed in bits. Higher entropy means more possible combinations for an attacker to try.
• Crack time estimate. Get a realistic estimate of how long a modern GPU cluster running 10 billion guesses per second would need to brute-force your password.

Why Use Our Free Password Generator?

There are plenty of password generators out there. Here is what makes ours different:

• 100% Free, No Limits. Generate unlimited passwords, any length, any combination. No account required, no daily caps.
• Cryptographically Secure. We use your browser’s built-in crypto.getRandomValues() API, not Math.random(). This produces truly unpredictable passwords suitable for real-world security.
• Completely Private. Your passwords are generated entirely in your browser. They are never transmitted to any server, never stored in any database, and never seen by anyone but you.
• Works Everywhere. Desktop, tablet, or phone. Chrome, Safari, Firefox, or Edge. If you have a browser, you have a password generator.
• No Distractions. No pop-ups, no registration walls, no cookie consent nightmares. Just a clean tool that does exactly what you need.

Who Uses a Password Generator?

Strong passwords are not just for security experts. They matter for everyone who uses the internet:

• Everyone with online accounts. The average person has over 100 online accounts. Using a unique, strong password for each one is the single most effective way to protect yourself from data breaches.
• IT professionals and system administrators who need to generate secure credentials for servers, databases, and internal tools on a daily basis.
• Small business owners creating passwords for shared accounts, Wi-Fi networks, software subscriptions, and team tools.
• Students setting up passwords for school portals, email accounts, and online learning platforms.
• Developers who need random strings for API keys, test data, environment variables, or configuration secrets.

Password Strength Guidelines

Here is a quick reference for password strength based on length and character types:

• 8 characters, letters only: Can be cracked in minutes by modern hardware. Never use this for important accounts.
• 12 characters, mixed types: Resistant to most brute-force attacks. Acceptable for low-risk accounts.
• 16 characters, all types: Very strong. Recommended minimum for email, banking, and cloud storage.
• 20+ characters, all types: Extremely strong. Practically uncrackable with current technology.

The National Institute of Standards and Technology (NIST) recommends passwords of at least 8 characters, but security researchers widely agree that 16 or more characters is the practical minimum for strong protection today. See the NIST Digital Identity Guidelines for more details.

Frequently Asked Questions

Is this free password generator really free?

Yes, completely free. There is no premium version, no sign-up, and no usage limits. Generate as many passwords as you want, as often as you want.

Are the generated passwords secure?

Yes. This tool uses crypto.getRandomValues(), the browser’s cryptographically secure pseudorandom number generator (CSPRNG). This is the same standard used by professional password managers and security applications.

Is my generated password stored anywhere?

No. Your password is generated entirely in your browser and exists only on your screen. It is never sent to any server. Once you close or refresh the page, the password is gone unless you have saved it somewhere yourself.

How long should my password be?

We recommend at least 16 characters with a mix of uppercase, lowercase, numbers, and symbols. For high-security accounts like banking, primary email, and cloud storage, use 20 or more characters.

What makes a password “strong”?

A strong password is long, random, and draws from a large set of possible characters. The strength meter on this tool measures entropy, which represents how many possible combinations an attacker would need to try. A 16-character password using all character types has over 105 bits of entropy, which would take billions of years to crack.

Should I use a different password for every account?

Absolutely. Reusing passwords means that if one account is compromised in a data breach, all your other accounts using the same password are also at risk. Use this tool to create a unique password for each account, and store them in a password manager.

What is entropy in the context of passwords?

Entropy is a measure of randomness, expressed in bits. A password with 128 bits of entropy has 2^128 (approximately 340 undecillion) possible combinations. Higher entropy means the password is harder to crack through brute force. Our tool calculates entropy based on the size of the character pool and the length of the password.

Can I use this tool on my phone?

Yes. The tool is fully responsive and works on all modern browsers on phones, tablets, and desktop computers. Need to check character limits for other platforms? Try our free character counter with platform-specific limit tracking.