Developer·5 min read·September 13, 2026

How to Generate a Strong Password (Free and Private)

Create strong, random passwords that are hard to crack. A clear guide to length, character types, passphrases and why a browser-based generator keeps them private.

How to Generate a Strong Password (Free and Private)

What makes a password strong

A strong password is long, random and unique. Length matters more than anything, because each extra character multiplies the number of guesses an attacker needs. A mix of uppercase, lowercase, numbers and symbols helps, but a short complex password is still weaker than a long simple one. The worst passwords are short, reused, or based on real words, names or dates.

How to generate a strong password

Open the Password Generator, choose the length and which character types to include, and copy the result. There is no account and nothing to install. Generate a fresh password for each account rather than reusing one, and paste it straight into the sign-up or password-change form.

Length versus complexity

If you have to choose, choose length. Aim for at least 16 characters for important accounts, and longer where a site allows it. Turning on symbols and numbers adds variety, but do not sacrifice length to fit a rule. Some sites cap the length or ban certain symbols, so the generator lets you adjust the mix to fit those limits without becoming weak.

Are these passwords safe to use

Yes, because they are created on your own device. The generator runs entirely in your browser, so the password is never sent to a server, logged, or stored anywhere online. It is produced, shown to you, and then it is yours. Refreshing the page or closing the tab leaves no copy behind.

Use a unique password everywhere

The single biggest security upgrade is never reusing a password. When one site is breached, attackers try the same email and password on banks, email and shops. Because you cannot memorise a different long password for every account, pair the generator with a password manager: generate, save, and let it fill them in. Then you only need to remember one strong master password.

Passphrases and extra tips

If you must type a password by hand often, a passphrase of four or more random words can be both strong and memorable. Whatever you choose, turn on two-factor authentication where it is offered, never share a password over email or chat, and change any password that may have appeared in a breach.

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