UsefulTab

How to create a strong password

Most accounts are lost not to clever hacking but to weak or reused passwords. The good news is that a genuinely strong password is simple to make. This guide explains what actually makes one hard to crack, and how to generate and check yours without it ever leaving your browser.

The fastest way

Open the Password Generator, set a length of 16 or more, and copy the result into your password manager. Want to test one you already use? The Password Strength Checker rates it — locally, without sending it anywhere.

What actually makes a password strong

Random string or passphrase?

A random string like k7$Rm2!qPvX9wLz4 packs the most strength per character and is perfect when a password manager remembers it for you. A passphrase of four or more unrelated words is easier to type and still very strong. Either works — choose the one you will actually use, and let the generator build it.

Check before you commit

Paste a candidate into the Password Strength Checker to see how it holds up. It runs entirely in your browser, so the password you test is never transmitted or logged.

A note on privacy

A security tool that phones your password home is a contradiction. Both the generator and the strength checker run locally in your browser — nothing you generate or type is ever uploaded. For verifying file or text checksums, the Hash Generator works the same way.

Open the Password Generator →

Common questions

What makes a password strong?

Length is the single biggest factor — each extra character multiplies the number of guesses an attacker needs. A long random string or a passphrase of several unrelated words beats a short password stuffed with symbols. Uniqueness matters just as much: a strong password reused across sites is only as safe as the weakest site that stores it.

Are random characters or a passphrase better?

Both can be strong if long enough. Random character strings pack the most unpredictability per character and are ideal when saved in a password manager. A passphrase of four or more unrelated words is easier to type by hand and still very strong. Pick whichever you'll actually use.

Is it safe to generate a password on a website?

Only if it is generated in your browser and never sent anywhere. UsefulTab's generator uses your browser's built-in cryptographic random-number generator and transmits nothing — the password exists only in your tab. Avoid any generator that sends the result to a server.

How often should I change my passwords?

Modern guidance is to change a password when there is a reason — a breach, a shared device, a suspicion — rather than on a fixed schedule, which tends to push people toward weaker, predictable variations. The bigger win is a long unique password per account, stored in a password manager.