Password generator

Generate strong, secure random passwords instantly. Cryptographically secure. Never stored.

A B C D E F
a b c d e f
0 1 2 3 4 5
! @ # $ % ^
0 O o l 1 I
password(s)

How to create a strong password

A strong password has four properties. It is long — at least 16 characters. It uses multiple character types — uppercase letters, lowercase letters, numbers, and symbols combined. It does not contain dictionary words, names, or personal information. And it is unique — never reused across different accounts. TextlyPop's password generator handles the first two automatically. Use a password manager to store the result and ensure uniqueness across all your accounts.

Cryptographically secure generation

TextlyPop uses the Web Crypto API's crypto.getRandomValues() function to generate passwords. This is cryptographically secure randomness — the same standard used in encryption software and security applications. It is significantly more unpredictable than standard Math.random() which most online password generators use. Your passwords are generated entirely in your browser, never transmitted to any server, and never stored anywhere.

Understanding password entropy

Entropy measures how unpredictable a password is, expressed in bits. A password with 80 bits of entropy would require an attacker to try on average 2^79 combinations to crack — approximately 600 quadrillion guesses. TextlyPop calculates entropy based on your character set size multiplied by the length. Enabling more character types increases the character set, which increases entropy even at the same password length. A 16-character password using all four character types has approximately 105 bits of entropy.

When to exclude ambiguous characters

The ambiguous characters option removes characters that look similar in certain fonts — the number zero and the letter O, the number one and the letters l and I. This is useful when you need to type the password manually rather than copying and pasting, for example when entering a Wi-Fi password on a TV or game console. For passwords you will always paste, there is no reason to exclude them — keeping them in increases your character set and improves entropy.

Frequently asked questions

How do I generate a strong password?

Set length to at least 16 characters, enable all four character types — uppercase, lowercase, numbers, and symbols — then click Generate. The strength meter will show Very strong.

Is this password generator secure?

Yes. TextlyPop uses the Web Crypto API for cryptographically secure generation. Passwords are generated in your browser and never sent to any server.

What makes a password strong?

At least 12 characters long, a mix of uppercase, lowercase, numbers and symbols, no dictionary words or personal information, and unique across all your accounts.

Can I generate multiple passwords at once?

Yes. Set the Count field to up to 20 and click Generate. Each password is independently generated with cryptographically secure randomness.

What do the password strength indicators mean?

Strength is calculated from password entropy in bits. Weak is under 40 bits, Fair is 40-60 bits, Strong is 60-80 bits, and Very strong is over 80 bits. Higher entropy means more combinations an attacker would need to try.