Password Generator

Last updated: October 1, 2026

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What is Password Generator?

This password generator creates strong random passwords in your browser and shows you how strong they actually are. Nothing is sent over the network — the characters come from your browser's cryptographic random number generator, the same one used for encryption keys, and the password exists only on your screen until you copy it. That matters for a tool like this: a password that travelled to someone else's server before reaching you is not really yours.

Length is what matters, not the symbols

The generator shows an entropy figure in bits under every password, and it is the number worth watching. Entropy measures how many guesses an attacker would need; each extra bit doubles that. A 16-character password using letters, numbers and symbols lands around 100 bits, which is far beyond anything that can be brute-forced. Shortening it to 8 characters drops it to roughly 52 bits — still a large number, but no longer out of reach.

The practical lesson is that adding length beats adding character types. Going from 12 to 16 characters helps more than turning on extended symbols. The default here is 16, the slider runs from 8 to 64, and the strength label moves from Weak through Fair, Good and Strong to Very Strong as you drag it.

The options that exist for a reason

Uppercase, lowercase, numbers and symbols are all on by default. Extended symbols adds characters some older systems reject, so it is off unless you need it. Exclude ambiguous characters removes capital I, lowercase l, the digit 1, capital O and zero — turn it on for any password you will read aloud, type from a screenshot or write on paper, because those five are where transcription goes wrong. You can also generate 1, 5 or 10 at once, which is the quick way to set up several accounts in one sitting.

About memorable mode

Memorable mode joins short words with hyphens to produce something you can actually type from memory. Be aware of the trade: it draws from a small word list, so the result is far weaker than a random 16-character string — the entropy figure will tell you exactly how much weaker. Use it for a device PIN-style login or a shared Wi-Fi password, not for your email, your bank or anything holding other people's data. For those, take the random password and put it in a password manager.

Related tools

Hash Generator produces MD5, SHA-1 and SHA-256 hashes when you need to verify a file or a checksum rather than create a credential.

How to Use Password Generator

Set Options
Choose password length and which character types to include.
Generate
Password generates automatically. Click Generate for a new one.
Copy
Click Copy to copy the password to your clipboard.

Features

Strength Meter

Real-time password strength indicator with entropy calculation.

Full Customization

Control length, character types and exclude ambiguous characters.

100% Private

Generated locally — never sent to any server.

Frequently Asked Questions

Are the generated passwords sent anywhere or stored?

No. They are created in your browser by its built-in cryptographic random number generator and never leave the page. Nothing is transmitted, logged or saved, so closing the tab discards them entirely.

How long should my password be?

Sixteen characters is a good default and is what the tool starts at. Length matters more than which symbols you include - going from 12 to 16 characters strengthens a password more than enabling extra character types does.

What does the bits of entropy figure mean?

It measures how hard the password is to guess, and each extra bit doubles the number of attempts required. Anything above about 80 bits is beyond brute force with current technology. The figure updates as you change length and character options.

Should I use memorable mode?

Only for low-stakes logins. It joins words from a small list, so it is considerably weaker than a random string of the same length, and the entropy reading shows you by how much. Use a random password plus a password manager for email, banking and work accounts.

What does excluding ambiguous characters do?

It removes capital I, lowercase l, the digit 1, capital O and zero - the characters people misread in most fonts. Turn it on for any password you will read aloud, copy from a screen or write down.

Is the randomness actually secure?

It uses the browser's crypto.getRandomValues, the cryptographically secure generator browsers provide for key material, rather than the ordinary random function used for things like shuffling a list.