// GENERATOR
Free Password Generator
Create strong, unique passwords with cryptographic randomness — right in your browser.
Generated password
Generated in your browser with a cryptographic random source. Nothing is sent to any server or stored.
// What makes a password strong
The strength of a password comes mostly from its length and randomness, not from clever character substitutions. Each additional character multiplies the number of guesses an attacker needs. A 20-character random password has so many possible combinations that brute-forcing it is infeasible with today's hardware.
"Entropy," measured in bits, estimates that unpredictability: it's the password length multiplied by how many possible characters each position could hold. Aim for 70+ bits for important accounts. This generator shows the estimate live as you change the length and character sets.
Just as important: use a different password for every site. Most account takeovers happen because a password leaked in one breach is reused elsewhere. Generate a unique password per service and store them in a reputable password manager so you never have to remember them.
Every password here is generated locally in your browser using the Web Crypto API's cryptographically secure random number generator. Nothing is transmitted to a server, logged, or stored — reload the page and it's gone.
// Frequently asked questions
- Are these passwords safe to use?
- Yes. They're created on your device using crypto.getRandomValues(), a cryptographically secure random source, and never leave your browser. No password is sent over the network or saved.
- How long should my password be?
- For important accounts, use at least 16 characters — 20+ is better. Length matters more than complexity, so a longer password with fewer symbol types is stronger than a short, dense one.
- What does "bits of entropy" mean?
- It's a measure of how hard the password is to guess. More bits means exponentially more possible combinations. Under ~40 bits is weak; 60–80 is strong; 80+ is excellent for most uses.
- Should I include symbols?
- Symbols increase the character pool and raise entropy, so they help. But some sites restrict which symbols are allowed — if one is rejected, turn symbols off and add a few more characters of length instead.
- Where are my generated passwords stored?
- Nowhere. This tool is fully client-side. Copy the password into your password manager; when you leave or refresh the page, the generated value is discarded.