Is the password generator free?

Yes. You can generate as many secure passwords as you like for free, with no account required.

Are the passwords really random and secure?

Yes. Passwords are built with the Web Crypto API (crypto.getRandomValues), a cryptographically secure random source, not the predictable Math.random().

Are my passwords sent or stored anywhere?

No. Every password is generated locally in your browser and displayed only to you. Nothing is transmitted or saved.

How long should my password be?

For most accounts 16 characters or more is a good target; for critical accounts, go longer and enable all character types.

Can I choose which characters to include?

Yes. You can toggle uppercase letters, lowercase letters, numbers and symbols, and the generator guarantees each enabled type appears.

How should I store the generated password?

Use a reputable password manager so you don't have to remember it, and enable two-factor authentication where possible.

Strong password generator

Create a strong, truly random password in one click. Pick the length and the character types you want, and In1 builds a secure password using your browser's cryptographic random generator. Nothing is sent anywhere — the password is created and shown only on your device.

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How to use Password Generator

1
Set the length
Drag the slider to choose how many characters your password should have — longer is stronger.
2
Pick character types
Toggle uppercase, lowercase, numbers and symbols to match the rules of the site you're using.
3
Generate
Click 'Generate' to create a fresh random password using your browser's secure random source.
4
Copy and store it
Copy the password and save it in your password manager. It's never sent anywhere.

Why random passwords matter

The passwords people invent themselves are far weaker than they feel. Names, dates, favorite teams and predictable substitutions like 'P@ssw0rd' are exactly what attackers try first, and reused passwords mean a single leak can unlock dozens of accounts. A randomly generated password has no pattern to guess: every character is independent, so the only way to break it is brute force, which becomes astronomically slow as length grows. Generating a fresh random password for each account — and storing it in a password manager — is the single most effective habit for keeping your online life secure. Most large-scale account takeovers don't involve some clever hack at all; they happen because a password leaked from one breached site is quietly tried against email, banking and social accounts elsewhere. A unique random password per account breaks that chain completely, so even if one service is compromised, the damage stops there instead of spreading across your whole digital life.

Built on real cryptographic randomness

Not all randomness is equal. Many simple tools rely on JavaScript's Math.random(), which is fast but predictable and never meant for security. In1 instead uses the Web Crypto API — specifically crypto.getRandomValues() — the same cryptographically secure random source browsers use for sensitive operations. That means the characters in your password are drawn from a high-quality, unpredictable entropy source, not a guessable sequence. The generator also makes sure every character type you enable actually appears in the result, so a password meant to include numbers and symbols never comes out missing them by chance. After guaranteeing one character from each selected set, it fills the rest from the combined pool and then shuffles everything, so the required characters aren't predictably parked at the front. The difference between a secure random source and a predictable one is not academic: a password built from a weak generator can sometimes be reproduced by an attacker who knows the algorithm, while one built from real entropy cannot.

You control length and character types

Strength comes from two levers, and both are in your hands. Length is the most powerful: each extra character multiplies the number of possible combinations, so a longer password is exponentially harder to crack. Variety is the second: mixing uppercase letters, lowercase letters, numbers and symbols expands the pool each character is chosen from. With In1 you set the exact length with a slider and toggle the four character groups on or off to satisfy whatever rules a particular site enforces. Want a long passphrase-length secret or a short PIN-style code? Both are a couple of clicks away. The live preview regenerates as soon as you change an option, so you can immediately see the effect of adding symbols or stretching the length. Some sites stubbornly reject certain symbols or cap the length, and being able to dial the exact mix means you can always produce a password that is both as strong as possible and actually accepted by the form in front of you.

Generated privately in your browser

A password is only secret if no one else ever sees it. That is why In1 generates yours entirely on your own device. The random characters are assembled in your browser and displayed only to you; nothing is transmitted over the network, logged on a server or saved anywhere. There is no account to create and no history to leak. When you copy the password and close the tab, no trace of it remains here. This local-only approach removes the biggest risk of online generators — the possibility that the very tool creating your password could be recording it. It is worth being skeptical of any generator that sends your password to a server, because there is simply no good reason for it to do so; everything needed to create a strong password already exists in your browser. Because the work is local, generation is also instant and keeps working even with no internet connection, so you can create credentials anywhere, anytime.

Tips for using your new password

A strong password works best as part of good habits. Use a unique one for every account so a breach on one site can't cascade to others. Store them in a reputable password manager rather than a notebook or a text file, and let the manager autofill them so you never have to type or remember the random string. Turn on two-factor authentication wherever it is offered for a second layer of defense, ideally with an authenticator app rather than SMS. For the accounts that matter most — email, banking, work — favor longer passwords with all character types enabled, since your email in particular is the master key that can reset many of your other logins. Avoid emailing or texting passwords to yourself, and never reuse a password just because it is convenient. Finally, change a password immediately if a service you use reports a data breach, and take the opportunity to replace any other account that shared it.

Get more from In1

Higher limits, batch processing and an API are on the way. Want early access?