Password Generator

About the Password Generator

The Password Generator creates strong, random passwords in one click. You can choose random characters for maximum strength, a passphrase of random words that is easier to type and remember, or a numeric PIN for phone and card locks. Each result shows an estimate of its strength in bits of entropy and how long a brute-force attack would take, so you can see why one option is stronger than another.

Use it whenever you create an account, change a password after a data breach, set up a Wi-Fi network, or need credentials for a database or server. Passwords are generated on your own device with the browser’s cryptographically secure random number generator. Nothing is sent to VIPTools.pk, stored or logged, so you can even disconnect from the internet after the page has loaded.

What makes a password strong?

A password is strong when an attacker cannot guess it in a practical amount of time. Attackers do not guess letter by letter by hand. They run software that tries lists of leaked passwords, dictionary words, names, dates and common patterns such as Ali1234!, then falls back to trying every combination. Human-chosen passwords fall quickly to these lists; truly random ones do not.

Strength is measured as entropy, in bits. Each bit doubles the number of possibilities an attacker must try. A random password’s entropy is its length multiplied by log₂ of the number of possible characters. A 16-character password drawn from 89 letters, digits and symbols has about 104 bits, far beyond what can be brute-forced. Length matters more than complexity: each extra random character adds about 6.5 bits, while forcing a single symbol into a short password adds very little. A passphrase of randomly chosen words works the same way, with each word from this generator’s 453-word list adding about 8.8 bits.

How to use the Password Generator

1. Choose the type: Random characters, Passphrase (words) or PIN.
2. For random characters, set the Length slider (6–64) and tick the character types: lowercase, uppercase, digits and symbols.
3. Optionally tick Avoid look-alikes to remove characters such as I, l, 1, O and 0, and keep At least one of each selected type ticked if a website requires every type.
4. For a passphrase, choose the number of words, a separator, and whether to capitalise words and add a number.
5. Enter How many passwords you want (up to 100). Each has its own copy button.
6. Click Generate new until you have one you like, then Copy it into your password manager or the sign-up form.

A new password is generated automatically whenever you change a setting. The coloured bar and the text under the password show its estimated strength and brute-force time.

Key features and benefits

• Cryptographically secure. Uses crypto.getRandomValues() with unbiased selection, so every allowed character is equally likely
• Three modes. Random characters, word passphrases and numeric PINs
• Flexible character rules. Choose character types, avoid look-alikes and guarantee at least one of each type for strict websites
• Bulk generation. Create up to 100 passwords at once, each with its own copy button
• Strength estimate. Entropy in bits and the brute-force time at 10 billion guesses per second
• Nothing leaves your device. Passwords are never transmitted, saved or logged, and the page works offline once loaded

Practical examples

A strong account password

Random characters, length 16, all four types: about 104 bits of entropy, rated Very strong. At 10 billion guesses per second a brute-force attack would take billions of years.

A password you can type on a phone

Passphrase with 7 words, hyphen separator, capitals and a number, for example Maple-River-Copper-Lotus-Kite-Harbor47-Violin. That is about 68 bits, rated Strong, and much easier to type than 16 random symbols.

Why word count matters

With this word list, 5 words plus a number is about 51 bits (rated Fair: roughly a day for a fast offline attack), 6 words about 60 bits, and 7 words about 68 bits (several hundred years). Use at least 6–7 words for important accounts, and more for a password manager’s master password.

A phone unlock PIN

PIN mode with 6 digits gives about 20 bits. That is fine for a phone or card that locks after a few wrong attempts, but never use a PIN as an online password; the tool shows a warning.

Common use cases

• Everyone creating new accounts or replacing reused passwords after a data breach.
• Home and office users setting Wi-Fi passwords that guests cannot guess.
• Developers and system administrators creating database, API and server credentials.
• Small businesses generating unique passwords for staff accounts in bulk.
• Password manager users creating a long, memorable master passphrase.

Accuracy, limitations and privacy

Random characters come from crypto.getRandomValues(), the browser’s cryptographically secure generator, with rejection sampling so no character is favoured. The entropy shown assumes the password was generated randomly by this tool; for random characters it is the length multiplied by log₂ of the actual character set used. Brute-force times assume an attacker trying 10 billion guesses per second against a fast password hash. Websites that store passwords with slow hashes are far harder to attack, while a website that leaks plain-text passwords makes any password useless.

Generation happens only in your browser, and nothing is stored after you close the page.

• A strong password does not protect you if it is reused on several websites; use a different password for every account.
• Strength estimates are approximate and assume the password stays secret.
• Some websites restrict which symbols or lengths are allowed; adjust the settings if a site rejects a password.

Tips and best practices

• Store generated passwords in a reputable password manager instead of a notebook or a text file.
• Turn on two-factor authentication for email, banking and social media accounts as well.
• Use 16 or more random characters for important accounts, or a passphrase of 7 or more words.
• Never send passwords by SMS, email or WhatsApp; share them through a password manager if you must.
• Change a password immediately if a service tells you it was involved in a data breach.

Related tools and next steps

Check an existing password with the Password Strength Checker, which looks for common passwords and patterns, or see the maths with the Password Entropy Calculator. For API keys and tokens, use the Random String Generator, and for checksums the Hash Generator. Our guide on creating strong passwords explains password managers and two-factor authentication.