OmniTools360*

Secure Password Generator

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Generate cryptographically secure random passwords with customizable length and entropy rating.

Generating...
Security Rating:Very Strong
16

About Secure Password Generator

The OmniTools360 Password Generator creates strong random passwords from 6 to 64 characters in your browser. It uses crypto.getRandomValues, the browser's cryptographically secure random number generator. You choose which character types to include, and the password is never sent to a server.

How does the Secure Password Generator work?

The tool builds a character set from the types you turn on: uppercase, lowercase, numbers, and symbols. It then takes secure random values from crypto.getRandomValues and picks one character from the set for each position. A new password is created whenever you change a setting.

Explanation

Password strength depends on length and character variety. The number of possible passwords is (set size) to the power of (length). With all four types, the set has 88 characters, so a 16-character password has 88^16, about 1.3 × 10^31 possibilities, or roughly 103 bits of entropy. Adding length increases strength faster than adding character types.

How to use the Secure Password Generator

1

Move the Length slider to choose 6 to 64 characters.

2

Turn on or off Uppercase Letters (A-Z), Lowercase Letters (a-z), Numbers (0-9), and Special Symbols (!@#$).

3

Check the Security Rating bar.

4

Click the regenerate button for a new password.

5

Click Copy to copy it.

Secure Password Generator examples

Very strong default
16 characters with all four types on gives a Very Strong rating and about 103 bits of entropy.
PIN-style numbers only
Turn on only Numbers (0-9) with length 6 for a code like 482915; this is Weak, with only 1,000,000 combinations.
No symbols for picky sites
Length 12 with uppercase, lowercase, and numbers gives a Strong rating for sites that reject special characters.

Frequently Asked Questions about Secure Password Generator

How long should a strong password be?

A strong password should be at least 12 characters, and 16 or more is better. Length matters more than complexity because each extra character multiplies the number of possible guesses. For important accounts like email and banking, use 16 or more random characters and a different password for every site.

Is it safe to use an online password generator?

It is safe when the generator runs in your browser and uses secure randomness, as this one does. It uses crypto.getRandomValues and does not send passwords to a server. Save new passwords in a trusted password manager, and never reuse the same password on more than one account.

What makes a password strong?

A strong password is long, random, and unique. It should have at least 12 to 16 characters, mix letters, numbers, and symbols, and not contain names, dates, or dictionary words. Most importantly, use it on only one site, so a leak at one service cannot unlock your other accounts.

Are random passwords better than passphrases?

Both can be strong; random passwords pack more strength per character, while passphrases are easier to remember. A 16-character random password is very hard to guess. A passphrase of five or more random words is also strong and easier to type. Use random passwords in a password manager and passphrases for things you must remember.

How often should I change my password?

You should change a password when there is a reason, such as a data breach, suspicious activity, or sharing it with someone. Current security guidance, including from NIST, no longer recommends forced changes every few months. A long, unique password plus two-factor authentication protects you better than frequent changes.