Strong Password Generator

Our strong password generator crafts highly secure random passwords by combining letters, numbers, and symbols in unpredictable sequences. Unlike simple, guessable passwords, ours withstand brute force attacks and hacking attempts. Ideal for all your accounts, our tool provides the security you need in a digital world, ensuring your personal and professional information is protected.

Having a strong password is essential because it helps prevent unauthorized access to your personal or work-related accounts, protecting sensitive information from being exposed or misused. Strong passwords act as a first line of defense against cyber threats, including hacking and identity theft. By using complex and unique passwords for each account, you significantly lower the risk of your accounts being compromised, ensuring your digital security and privacy.

A truly strong password has three key qualities: sufficient length, character variety, and randomness. Security experts recommend a minimum of 12 characters, though 16 or more is ideal. The password should include a mix of uppercase letters, lowercase letters, numbers, and special symbols to maximize the number of possible combinations an attacker would need to try. Most importantly, it must be genuinely random rather than based on dictionary words, personal information, or predictable patterns like "Password123!" which attackers test early in any brute force attempt. This tool draws that randomness from crypto.getRandomValues(). The random number generator uses Math.random() instead and is meant for games and raffles, not secrets. To share a network password without reading it out, a WiFi QR code lets people join by scanning.

The readout is the entropy of the current settings: the length multiplied by log₂ of the number of characters that can appear. A 20 character password drawn from all four types uses a pool of 90 characters, which gives about 130 bits. Each extra bit doubles the number of guesses an attacker needs. As a rough guide, under 40 bits can be guessed quickly, 80 bits and above is out of reach for guessing, and 128 bits matches a random encryption key. The figure assumes the password was generated randomly, as it is here, and does not apply to a password you choose yourself.

Passphrase mode picks words at random from the EFF Short Wordlist, 1,296 common words of up to five letters published by the Electronic Frontier Foundation under a CC BY 3.0 license. Each word adds about 10.3 bits, so the default of eight words gives about 83 bits, and six words would give about 62. You can choose the separator and capitalize each word if a site requires uppercase letters.

It removes characters that are easy to confuse in many fonts: the digits 0 and 1, the letters O, o, l and I, and the vertical bar |. Use it when a password will be read aloud or typed from a printout. The pool gets slightly smaller, so the strength readout drops a little for the same length.