We make Private Password Generator. We’ve tried to be fair to LastPass and link to its own pages for every claim. If something here is out of date, email [email protected] and we’ll fix it.
Use the LastPass password generator if you already pay for LastPass. Its app makes a password, saves it to your vault and fills it in next time. Use Private Password Generator if you want a passphrase, a batch of passwords, or a clear number for how strong each one is, without an account and without anything leaving your browser.
Try it here. The password is made on this page and never sent anywhere.
Which one should you use?
Choose LastPass if you:
- already use LastPass and want new passwords saved and autofilled
- want a username generator from the same company
- are happy with a simple Weak, Average or Strong label
Choose Private Password Generator if you:
- need a passphrase or a password you can say out loud
- want 5, 10 or 20 passwords at once
- want to see the entropy in bits and an estimated crack time
LastPass vs Private Password Generator at a glance
| Feature | Private Password Generator | LastPass online generator |
|---|---|---|
| Price | Free | Free (the vault needs a LastPass plan) |
| Account needed | No | No |
| Password types | Random characters, passphrase, pronounceable | Random characters, with “easy to say” and “easy to read” options |
| Length | 8 to 64 characters | Adjustable slider |
| Skip look-alike characters | Yes (I, l, 1, O, 0, o and a few quote marks) | Yes, “easy to read” avoids l, 1, O and 0 |
| At least one of each character type | Yes, optional | Not mentioned |
| Several passwords at once | 5, 10 or 20 | One at a time |
| Strength shown as | Entropy in bits plus estimated crack time | Weak, Average or Strong, checked with the zxcvbn library |
| Where the password is made | In your browser; nothing sent or stored | The generator page doesn’t say |
| Saves and autofills | No; you paste it into your password manager | Yes, in the LastPass apps |
| Username generator | No | Yes, on a separate page |
Where is the password made, and who can see it?
Private Password Generator builds every password in your browser. It uses crypto.getRandomValues, the browser’s cryptographic random number generator, and rejection sampling so no character comes up more often than another. The password never goes to our server and we don’t save it. We remember only your settings, such as length, for your next visit.
You can check this yourself. Load the page, turn off your Wi-Fi, and keep generating. The tool still works because nothing needs the internet once the page has loaded.
The LastPass generator page tells you how it rates strength and how it compares with the in-app generator. It doesn’t say where the password is created. LastPass describes zero-knowledge encryption for passwords you save in its vault, which is a separate step from generating one.
Which one gives you more kinds of password?
Private Password Generator has three modes:
- Random characters. Best for anything you store in a password manager. A 16-character password using letters, numbers and symbols has about 103 bits of entropy.
- Passphrase. Random words joined by a hyphen, dot, space, underscore or nothing, such as Turtle-Scarf-Yarn-Denim62-Fox-Cedar. You can paste your own word list, such as the EFF list.
- Pronounceable. Syllables you can read aloud, such as Nemsar49-Vatjin. Useful for a Wi-Fi password or a TV login you type with a remote.
The LastPass online tool makes random-character passwords. You choose the length and the character types, and you can switch on “easy to say” (no numbers or symbols) or “easy to read” (no l, 1, O or 0). It doesn’t make passphrases.
If you need a password you’ll type by hand or remember, the passphrase and pronounceable modes give you options LastPass’s web tool doesn’t.
Which one tells you more about strength?
LastPass checks each password with zxcvbn, a well-known strength estimator, and shows Weak, Average or Strong.
We show the number behind the label. Each password gets its entropy in bits and an estimated crack time, assuming an attacker who has stolen a database and can test a trillion guesses per second. Under 50 bits is weak, 50 to 74 fair, 75 to 99 strong, and 100 or more excellent.
The number helps when you’re choosing between settings. You can watch the strength change as you add four characters or drop symbols, then decide what a site will accept.
Do you need an account?
No, for either web tool. You can open both pages and generate a password straight away.
The LastPass page also invites you to start a Premium or Business trial in several places, which makes sense: the generator is part of LastPass’s product tour. Our page has one job, so you won’t see sign-up prompts.
What happens after you generate a password?
This is where LastPass is stronger. According to its FAQ, the online tool and the in-app generator work the same way, but the app also saves the new password and fills it in for you. With the online tool, or with ours, you copy the password and paste it yourself.
We don’t store passwords, by design. The safest next step is to paste the password straight into a password manager, which could be LastPass.
Where LastPass is the better choice
LastPass is a full password manager, so it covers everything after the password is made: an encrypted vault, autofill, sync across devices, sharing, a username generator and dark web monitoring on paid plans. If you want one tool that creates, stores and fills passwords, LastPass does that and we don’t.
Use both
The two work well together. Generate a passphrase for your LastPass master password here, where it’s made offline in your browser. Then let LastPass create and fill the random passwords for your other accounts. For the master password, use 8 or more words, or paste the EFF long word list for about 12.9 bits per word.
Frequently asked questions
Is the LastPass password generator safe to use?
Yes. It makes random passwords from the settings you choose and rates them with the zxcvbn strength library. Its page doesn’t say where generation happens, so if that matters to you, use a generator that states it works in your browser, then save the result in your password manager.
Does the LastPass password generator make passphrases?
Not the online tool. It makes random-character passwords, with “easy to say” and “easy to read” options. For random-word passphrases, use a passphrase generator such as ours, and pick 8 or more words from the built-in list or paste a larger list.
Do I need a LastPass account to use its generator?
No. The LastPass online generator works without signing in. You only need an account if you want LastPass to save and autofill the password, which happens in the LastPass browser extension and apps.
What does “easy to say” mean in a password generator?
It means the password avoids characters that are awkward to read aloud. LastPass’s “easy to say” option leaves out numbers and symbols. Our pronounceable mode builds passwords from syllables, such as Nemsar49-Vatjin, and each syllable adds about 8.9 bits of entropy.
Can I generate a password here and save it in LastPass?
Yes. Copy the password, open the LastPass extension or app, and paste it into the password field of a new or existing item. We never see or store it, so LastPass will hold the only saved copy.
Which is stronger: a random password or a passphrase?
Per character, a random password is stronger. A 16-character random password has about 103 bits of entropy. A passphrase needs more characters for the same strength but is easier to type and remember. Use random passwords for saved logins and a long passphrase for the few you must remember.
The verdict
If you already pay for LastPass, keep using its built-in generator for everyday logins, because it saves and fills them for you. Use Private Password Generator when you need something LastPass’s web tool doesn’t make, such as a passphrase, a pronounceable password or a batch of 20, or when you want the password made entirely in your browser.
Related comparisons
- Bitwarden vs Private Password Generator
- 1Password vs Private Password Generator