Question 1

Is this password generator secure?

Accepted Answer

Yes — this generator is cryptographically secure. It uses crypto.getRandomValues() from the Web Crypto API, which draws random bytes from the operating system's hardware-backed entropy pool. Unlike Math.random(), which is a deterministic algorithm seeded by the system clock and unsuitable for security use, crypto.getRandomValues() is designed specifically for cryptographic applications and cannot be predicted or replicated. It is the same randomness source used to generate TLS session keys and cryptographic certificates in modern browsers.

Question 2

Are my passwords stored or transmitted?

Accepted Answer

No — your passwords are never stored or transmitted anywhere. All generation runs entirely inside your browser using JavaScript, with zero network requests triggered during the process. You can verify this yourself by opening your browser's developer tools, switching to the Network tab, and watching for outgoing activity while generating a password — you will see none. Closing the tab erases any trace of the generated passwords.

Question 3

How long should my password be?

Accepted Answer

For most accounts, 16 characters combining uppercase, lowercase, numbers, and symbols provides excellent security — roughly 95 bits of entropy, which would take centuries to brute-force even with dedicated hardware. For high-value accounts like email, banking, or your password manager master password, use 24 or more characters with all character types enabled. The strength meter on this page shows your current entropy in bits so you can see exactly where your password stands.

Question 4

What does password strength mean?

Accepted Answer

Password strength is measured in bits of entropy, calculated as length × log₂(charset size). This represents the logarithm of the total number of possible combinations for a password of that length and character pool. A password with 60 bits of entropy has 2⁶⁰ possible values — roughly one quintillion combinations — which is considered strong for most purposes. 80+ bits is excellent for everyday use; 128+ bits is effectively uncrackable by any current or foreseeable hardware using brute-force methods.

Question 5

Can I use special symbols everywhere?

Accepted Answer

Most modern websites and applications accept the full range of special symbols. However, some older or legacy systems restrict which characters are allowed — common culprits are certain banking portals, enterprise software, and government sites. If a site rejects your generated password, toggle symbols off and regenerate. You can also use the custom character exclusion field to block specific characters you know the target site rejects, ensuring every generated password is guaranteed to be accepted.

Question 6

Should I use a password manager?

Accepted Answer

Yes — a password manager is strongly recommended alongside this generator. Even the strongest password becomes a liability if you reuse it or store it in plain text. A password manager lets you maintain a unique, randomly generated password for every account without memorizing any of them — you only need to remember one master password. Use this generator to create new credentials, copy them directly into your manager, and never reuse a password across sites.

Question 7

What makes a password weak?

Accepted Answer

A password is weak when it lacks entropy — typically due to short length, using only one character type such as all lowercase letters, following predictable patterns like keyboard walks (qwerty, 123456) or personal information like birthdays and names, or being reused across multiple sites. Reuse is especially dangerous: a single data breach can expose every account sharing that password. The live strength meter and entropy readout on this page give you an objective measure of exactly where each password stands.

Free Password Generator — Secure & Private

Why use our Password Generator?

How to Generate a Strong Password

Frequently Asked Questions