Free Password Generator – Create Strong Random Passwords
Generate a strong random password with your choice of character types.
About the Password Generator
What is the Password Generator?
A password generator creates a random password using the character types you select and a length you choose.
Why use this calculator?
Random passwords resist guessing and dictionary attacks far better than human-chosen ones, and every account should have a unique one.
How to use it
- Choose the password length.
- Select which character types to include.
- Copy the generated password and store it in a manager.
Formula
The password is drawn at random from the combined character pool, with at least one character from each selected type.
Longer passwords and larger character pools increase the number of possible combinations exponentially.
Frequently Asked Questions
How long should a password be?
Use at least 12 to 16 characters for important accounts. Length matters more than complexity.
Is it safe to generate a password here?
Yes. Everything is generated in your browser and nothing is transmitted. Even so, store it in a password manager rather than reusing it.
Can I print or share my result?
Yes. Use your browser's print function or screenshot the result. The page is designed to print cleanly.
What if my inputs are outside the typical range?
The calculators accept a wide range of values, but extreme inputs may produce unrealistic results. Double-check the units you are using.
How often is the calculator updated?
We review formulas and rates periodically to keep them aligned with current standards and published data.
Is this calculator free to use?
Yes. Every calculator on this site is completely free, with no hidden fees, no subscriptions and no limits on how many times you can use it.
How accurate are the results?
We use standard, widely accepted formulas and calculate in your browser using double-precision arithmetic. Results are rounded for readability, so treat them as reliable estimates rather than a guarantee. Real-world factors can vary the true figure.
Can I add this calculator to my own website?
Yes. Open this calculator page and use the "Add to your website" box in the sidebar to copy a ready-made iframe snippet, then paste it into any HTML page.
Does it work on a phone or tablet?
Yes. The layout is fully responsive, so it works on desktops, laptops, tablets and mobile phones, and every input adapts to touch screens.
Is the information I type kept private?
Yes. All calculations run locally in your browser. Nothing you enter is uploaded, stored or shared with anyone.