Password Generator
Generate a strong, random password instantly using your browser's secure Web Crypto API. Nothing leaves your browser — passwords are created on your own device.
What Is the Password Generator Tool?
A free strong password generator is a tool that creates a random, hard-to-guess password instantly, using your browser's secure Web Crypto API. You choose the length (8–64 characters) and which character types to include — uppercase, lowercase, numbers and symbols — and the tool builds a password that includes at least one character from each type you selected, then shows its strength as an entropy score in bits.
What Is It Used For?
It is used whenever a new account, Wi-Fi network, document or app asks for a password and you should not reuse an old one. It is used for email, banking, social media, work accounts and any service where a weak or repeated password would put you at risk. Because the password is random, no one — including you — can guess it from your name, birthday or favourite words.
Key Benefits
- Truly random — built on the browser's secure Web Crypto random generator, not on predictable patterns.
- Strength shown honestly — every password gets an entropy score (Weak, Medium, Strong or Excellent) so you can see its strength before using it.
- Full control — length from 8 to 64 characters, four character types, and an option to exclude lookalike characters (0, O, 1, l, I).
- Completely free — no signup, no download, no limits.
- Private by design — passwords are created on your own device; nothing is sent to a server or stored.
How to Use This Free Strong Password Generator
- Choose the password length and which character types to include (uppercase, lowercase, numbers, symbols).
- Tick "Exclude lookalike characters" if the password will be typed by hand and 0/O or 1/l confusion is a risk.
- Click Generate Password for a new random password, and check its strength score.
- Click Copy and paste it where you need it — ideally straight into a password manager.
Common Mistakes to Avoid With Passwords
- Reusing one password everywhere. One leaked password then opens every account that shares it — use a unique password per account.
- Choosing a short password because it is easy to remember. An 8-character password of one type is far weaker than a 16-character mixed one; let a password manager remember it for you.
- Using personal words and dates. Names, birthdays and favourite teams are the first things an attacker tries.
- Saving passwords in plain text files or notes. A note on your phone or desktop is not secure storage — use a password manager.
- Sharing the generated password over chat or email. Send access through the service's own sharing or account-recovery feature instead, never as plain text.
Frequently Asked Questions
How long should a password be? At least 12 to 16 characters; use 20 or more characters for critical accounts such as email and banking.
Are my passwords stored anywhere? No. Passwords are generated in your browser using the Web Crypto API — nothing is sent to a server or stored.
What is entropy? A measure of password strength in bits. Higher bits mean harder to crack — aim for 80 or more bits for strong security.
Should I reuse passwords? No. Use a unique password for every account, ideally saved in a password manager.
What do the strength labels mean? The tool rates the password from its length and character set: under 40 bits is Weak, under 60 is Medium, under 80 is Strong, and 80 or more is Excellent. Longer passwords with more character types score higher.
What is the Web Crypto API? The browser's built-in secure random number generator. It produces far less predictable output than the basic random function, which is why this tool uses it for passwords.
What does "Exclude lookalike characters" do? It removes 0, O, 1, l and I from the character pool, so a password you must type by hand cannot be misread. It slightly reduces the character pool, so compensate with a little extra length if you tick it.
What if a site rejects symbols? Untick Symbols and regenerate. Some older sites accept only letters and numbers — the tool adapts to whatever the site allows.
What if I untick every character type? The tool will ask you to select at least one character type before it can generate anything.
Can it generate a memorable password? No. This tool makes random character strings, which are stronger than word-based passwords but must be stored in a password manager — it does not create word-based passphrases.
Should I change my passwords regularly? Only if there is a reason — a breach, a shared password, or a weak one. Forced routine changes tend to produce weaker passwords; a unique, strong password per account matters more.
Is copying the password to the clipboard safe? On your own device, yes for normal use. Avoid copying on shared or public computers, and clear the clipboard afterwards if the device is not yours.
Does it work on mobile? Yes. The tool runs in any modern mobile browser, and the generated password can be copied and pasted into apps.
Is this password generator free? Yes, completely free with no signup, and it works entirely in your browser.
Final Thoughts
A strong password costs you nothing and protects everything behind it. Generate a long, random, unique password for each account, store it in a password manager, and never reuse the one password you can remember everywhere else.