How to Create a Strong Password
A strong password has four key properties — it is long (minimum 12 characters), it uses a mix of uppercase letters, lowercase letters, numbers and symbols, it is random (not based on your name, birthday or common words), and it is unique (not reused across multiple accounts).
What Makes a Password Weak?
Common words and patterns: Passwords like "password123", "admin", "123456", "qwerty" are tried first by every hacker. These are cracked in under 1 second.
Personal information: Your name, date of birth, phone number, child's name, pet's name — hackers find this on social media and try it immediately.
Short passwords: An 8-character password can be cracked in hours with modern computers. A 16-character random password would take millions of years.
Reused passwords: If the same password is used on 10 sites and one site gets hacked — all 10 accounts are compromised.
Password Strength by Length
8 characters: Can be cracked in a few hours with brute force. Not recommended for important accounts.
12 characters: Would take years to crack. Acceptable for most accounts.
16 characters: Effectively uncrackable with current technology. Recommended for email, banking, UPI apps.
20+ characters: Maximum security. Use for password manager master password.
Frequently Asked Questions
Are the passwords generated here secure? +
Yes. This tool uses the browser's built-in cryptographically secure random number generator (window.crypto.getRandomValues) — the same standard used by security software. The passwords are generated entirely in your browser and never sent to any server. Even ToolNinja cannot see the passwords you generate.
Should I use the same password for multiple accounts? +
Never. If one website gets hacked (and websites get hacked regularly — even large ones), the stolen password is automatically tried on Gmail, Facebook, bank apps, UPI apps, and hundreds of other services. This is called credential stuffing and it is one of the most common ways accounts are compromised in India. Use a different password for every account and use a free password manager like Bitwarden to remember them.
What is the best password length? +
For most accounts — 16 characters is the sweet spot between security and usability. For your email account (which controls password resets for everything else) and your banking apps — use 20 characters or more. For your password manager master password — use the maximum the tool allows, ideally 32+ characters, since you only need to remember that one.
What is two-factor authentication and should I enable it? +
Two-factor authentication (2FA) means you need both a password AND a one-time code (usually sent to your phone) to log in. Even if someone steals your password, they cannot log in without physical access to your phone. Enable 2FA on your Gmail, any UPI app, online banking, and social media accounts. In India, most banking and UPI apps already enforce OTP-based 2FA by default.