Password Generator/ Secure Random
Generate strong random passwords instantly. Customize length, characters, and bulk generate. Powered by Web Crypto API — nothing leaves your browser.
Passwords are generated locally in your browser and never sent to any server
!}Z]goGhC7>p!zZ%?AaJtT_+FvXWu[Ea}S$Zqtv.ld!`H)Z*&k3@[,-|{).!i/Pf##z|3Pb~Mbhzay4vDid this tool solve your problem?
What makes a strong password
Strong passwords typically meet these criteria: at least 12 characters long (16+ recommended), containing uppercase, lowercase, numbers, and special symbols, avoiding dictionary words or personal information, and using a unique password for each site. Password strength is highly correlated with length — a 16-character random password is harder to brute-force than an 8-character complex one. The latest NIST guidelines recommend prioritizing length over complexity.
Why you shouldn't create passwords yourself
Humans tend to use predictable patterns: name + birthday + symbols, keyboard sequences (qwerty, 123456), common word variations. These patterns are already in attackers' password dictionaries and can be cracked in seconds. Randomly generated passwords have no patterns and would take centuries to brute-force. Using a password generator with a password manager (1Password, Bitwarden, etc.) is the best practice.
Is this password generator safe
Our tool uses the browser's built-in Web Crypto API (crypto.getRandomValues) which is a cryptographically secure pseudo-random number generator (CSPRNG). All generation happens entirely in your browser — passwords are never uploaded to any server, there's no network transmission, so there's no leak risk. You can safely use it offline.
Code Examples
function generatePassword(len, charset) {
const arr = new Uint32Array(len);
crypto.getRandomValues(arr);
return Array.from(arr, (v) =>
charset[v % charset.length]
).join("");
}
const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*";
const pw = generatePassword(16, chars);
// e.g. "xK9#mP2&vL5$nQ7@"import secrets
import string
def generate_password(length=16):
chars = (
string.ascii_letters
+ string.digits
+ string.punctuation
)
return "".join(
secrets.choice(chars)
for _ in range(length)
)
pw = generate_password(16)
# Uses OS-level CSPRNGfunction securePassword(
length: number,
options = {
upper: true, lower: true,
digits: true, symbols: true,
}
): string {
let pool = "";
if (options.upper) pool += "A-Z";
if (options.lower) pool += "a-z";
if (options.digits) pool += "0-9";
if (options.symbols) pool += "!@#$%^&*";
const buf = new Uint32Array(length);
crypto.getRandomValues(buf);
return [...buf].map(v =>
pool[v % pool.length]).join("");
}import (
"crypto/rand"
"math/big"
)
func GeneratePassword(
length int, charset string,
) (string, error) {
result := make([]byte, length)
max := big.NewInt(int64(len(charset)))
for i := range result {
n, err := rand.Int(rand.Reader, max)
if err != nil {
return "", err
}
result[i] = charset[n.Int64()]
}
return string(result), nil
}