Free Password Generator Online
Generate strong, secure random passwords with customizable length, uppercase, lowercase, numbers, and special characters.
A password generator creates a random string of characters you can use as a secure password. Strong passwords are long, unpredictable, and mix uppercase letters, lowercase letters, numbers, and symbols, which makes them resistant to brute-force and dictionary attacks. This tool generates passwords entirely in your browser using the Web Crypto API, so the password is never sent over the network and never touches our servers. Pick a length, choose which character classes to include, click generate, and copy the result. Because the randomness happens on your device, the output is safe to use as a master password for a password manager, a new account password, or a one-off credential for an API key or database user.
Password Generator
How to use this password generator
- Pick a length with the slider. 12 to 16 characters is a sensible minimum for everyday accounts; 20 or more for critical accounts like banking, email, and your password manager.
- Enable the character classes you want: uppercase, lowercase, numbers, and symbols. Turning on all four produces the strongest password for a given length.
- Click Generate to produce a random password.
- Click Copy to place it on your clipboard.
- Paste it into your password manager or the signup form you are filling out. Do not try to memorize it — let the manager remember it for you.
Common use cases
- Creating a new account and needing a secure password immediately
- Rotating a password after a data breach notification
- Generating an API key, database user password, or service account credential
- Setting up a master password for a password manager such as Bitwarden or 1Password
- Creating a disposable password for a one-time signup you do not plan to return to
Frequently asked questions
How long should my password be?
For routine accounts, at least 12 characters. For critical accounts such as email, banking, and your password manager, aim for 20 or more. Length matters more than complexity — a 20-character password of only lowercase letters is harder to brute-force than a 10-character password that uses every symbol class.
Is this password generator safe to use?
Yes. It uses your browser's built-in crypto.getRandomValues() API, which is a cryptographically secure source of randomness. Passwords are generated locally on your device and never leave the browser. You can verify this yourself by opening your browser's network tab — no network request is made when you click Generate.
Should I include symbols?
If the site accepts them, yes. Symbols increase the search space an attacker has to cover, which strengthens the password per character. Some older systems block certain symbols; if that happens, generate a longer password with only letters and numbers instead. Extra length compensates for reduced character variety.
Can I reuse the same password on multiple sites?
No. If one site is breached, every account sharing that password becomes reachable. Use a password manager (Bitwarden, 1Password, KeePass, or your browser's built-in manager) to store a unique password per site.
What makes a password weak?
Predictability. Dictionary words, birthdays, pet names, keyboard patterns like qwerty or 123456, and obvious leet-speak substitutions like P@ssw0rd all appear early in attacker wordlists. Anything a person would pick by hand tends to be weak — let a generator do it instead.