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Strong Password Generator – Create Secure Random Passwords

Create a strong, random password in one click and see how secure it is. Passwords are generated on your device and never leave it.

Strength: Very strong103 bits of entropy

Excellent. Store it in a password manager so you don't have to remember it.

16 characters
Characters to include

Generated on your device with your browser's secure random generator. It is never sent anywhere.

How to generate a strong password

  1. Set the length with the slider. 16 characters is a good default; use 20 or more for important accounts.
  2. Choose the characters to include: uppercase letters, lowercase letters, numbers and symbols. Turn on Avoid look-alike characters if you'll ever read or type the password by hand.
  3. Check the strength meter. It shows the password's strength and entropy in bits, with a short tip on what to change.
  4. Copy the password with the Copy button and paste it into the sign-up or password-change form. Press the refresh button any time for a new one.

Features

  • Cryptographically secure randomness from your browser's built-in crypto.getRandomValues, the same source used for encryption keys, with an unbiased method so every character is equally likely.
  • Lengths from 4 to 128 characters.
  • Choose character types: uppercase, lowercase, numbers and symbols. Every type you select is guaranteed to appear at least once, so passwords pass "must include a number" rules.
  • Avoid look-alike characters like I, l, 1, O and 0.
  • Live strength meter with entropy in bits and plain-language advice.
  • One-tap copy that works on phones and computers.

Why use Fileora's password generator

A password generator is only as trustworthy as the place the password is created. Some online generators build the password on their server and send it to your browser, which means it has travelled over the network and could, in principle, be logged. Fileora generates passwords entirely on your device. Nothing is transmitted, saved, or remembered after you close the tab.

People are also bad at inventing random passwords. We reuse favourite words, add a "1!" at the end, and swap letters for similar numbers in ways that password-cracking tools already try first. A generated password has none of those patterns. Combined with a password manager, it means every account can have a unique password, so one data breach can't unlock the rest of your online life.

Setting up a guest Wi-Fi network? Generate a strong password here and then turn it into a Wi-Fi QR code so visitors can join by scanning instead of typing.

What makes a password strong

Strength comes from two things: length and the size of the character set. A password drawn from all four character types has about 90 possible symbols per character, so each character adds roughly 6.5 bits of entropy. At 16 characters that's over 100 bits, far beyond what any computer could guess. The most important habits are simple: use a different password for every account, make each one long and random, and turn on two-factor authentication wherever it's offered.

Frequently asked questions

Is it safe to use an online password generator?

It is safe when the password is created on your own device, which is how this tool works. It uses your browser's cryptographically secure random number generator, and the password is never sent to our servers, stored or logged. You can even disconnect from the internet after the page loads and it will keep working.

How long should my password be?

Use at least 12 characters for everyday accounts and 16 or more for email, banking and anything that protects other accounts. Length matters more than complexity: each extra character multiplies the number of possible passwords.

What does bits of entropy mean?

Entropy measures how unpredictable a password is. Each extra bit doubles the number of guesses an attacker would need. Under 40 bits is weak, 60 bits is reasonable for low-value accounts, and 80 bits or more is very strong, beyond the reach of any practical brute-force attack.

Why should I avoid look-alike characters?

Characters like the capital I, lowercase l and number 1, or the letter O and number 0, are easy to confuse when reading a password aloud or typing it from paper. Turning on the option removes them, which slightly reduces the number of possible characters, so add a character or two of length to compensate.

How do I remember a random password?

You shouldn't have to. Use a password manager, such as the one built into your browser or phone, or a dedicated app, to save it. Then you only need to remember one strong master password, and every account can have its own unique random password.

Some websites don't accept symbols. What should I do?

Switch off Symbols and increase the length by a few characters to keep the same strength. A 20-character password made of letters and numbers is stronger than a 12-character password with symbols.

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