Password Generator Online - Create Strong Passwords
Generate strong, random passwords with customizable options.
Settings
Why Use a Random Password Generator?
Humans are predictable. We tend to use passwords based on personal information (birthdays, pet names, favorite sports teams) or simple patterns (123456, qwerty, password1). Hackers know this and use sophisticated tools that can guess billions of common passwords in seconds.
A random password generator creates truly unpredictable combinations that can't be guessed through personal research or pattern recognition. Our generator uses your browser's cryptographic random number generator (the same technology used to secure HTTPS connections) to ensure maximum randomness.
Even a 12-character random password with mixed character types would take a modern computer thousands of years to crack through brute force, compared to seconds for common passwords.
Understanding Password Strength
Weak (0-25%)
Short passwords or those using only one character type. Can be cracked in seconds to minutes.
Fair (25-50%)
Medium length with some variety. Better, but still vulnerable to targeted attacks.
Good (50-75%)
12+ characters with mixed types. Resistant to most common attack methods.
Strong (75-100%)
16+ characters with all character types. Effectively uncrackable by current technology.
Password Security Best Practices
Do This
- • Use unique passwords for every account
- • Make passwords at least 12 characters long
- • Include uppercase, lowercase, numbers, and symbols
- • Use a password manager to store passwords securely
- • Enable two-factor authentication (2FA) when available
- • Change passwords if a service reports a breach
Avoid This
- • Using personal info (birthdays, names, addresses)
- • Common words or phrases ("password", "letmein")
- • Simple patterns ("123456", "qwerty", "abc123")
- • Reusing passwords across multiple accounts
- • Sharing passwords via email or text
- • Writing passwords on sticky notes
Frequently Asked Questions
How does this password generator work?
Our generator uses the Web Crypto API (crypto.getRandomValues()), a cryptographically secure random number generator built into your browser. This is the same technology used for HTTPS encryption. The password is generated entirely in your browser — it's never sent to any server.
Is it safe to use an online password generator?
Yes, when the generator runs entirely in your browser like ours does. The password is created on your device and never transmitted over the internet. We have no way to see or store your generated passwords. You can verify this by disconnecting from the internet and confirming the generator still works.
How long should my password be?
For most accounts, 12-16 characters is sufficient. For high-security accounts (banking, email, password manager master password), use 16-24 characters or more. Length is actually more important than complexity — a 20-character lowercase password is stronger than an 8-character password with symbols.
What does "Exclude Similar Characters" do?
This option removes characters that look alike: i, l, 1, L, I, o, O, 0. This is useful if you need to manually type the password (rather than copy-paste) or read it aloud to someone. It slightly reduces randomness but improves usability.
Should I use symbols in my password?
Generally yes, as they increase the character pool and make passwords harder to crack. However, some older systems don't accept certain symbols. If you encounter errors when setting a password, try generating one without symbols or with a limited symbol set.
How often should I change my passwords?
Modern security advice has shifted: don't change passwords on a schedule, but do change them immediately if: (1) a service reports a data breach, (2) you suspect unauthorized access, or (3) you've shared the password with someone who no longer needs it. Focus on using strong, unique passwords rather than frequent changes.
Consider Using a Password Manager
The best password is one you don't have to remember. Password managers store all your passwords in an encrypted vault, accessible with one master password. They can also auto-fill login forms and sync across devices.
Popular options include Bitwarden (free, open-source), 1Password, LastPass, and Dashlane. Most browsers also have built-in password managers. Using any password manager is significantly more secure than reusing passwords or using weak, memorable ones.