How to Generate Secure Passwords — Best Practices
Weak passwords are the #1 cause of account breaches. This guide covers password security best practices and shows you how to generate cryptographically secure passwords that resist brute-force and dictionary attacks.
What Makes a Password Secure?
- Length — 16+ characters (length beats complexity)
- Randomness — generated randomly, not based on personal info
- Mixed characters — uppercase, lowercase, numbers, symbols
- Uniqueness — different password for every account
- Unpredictability — not in any dictionary or common list
How to Generate a Secure Password
- Open the DevToolsKit Password Generator
- Set length to at least 16 characters
- Enable all character types (uppercase, lowercase, numbers, symbols)
- Click Generate — uses crypto.getRandomValues() for secure randomness
- Check the strength indicator — aim for "Strong"
- Copy and store in a password manager immediately
Generate Secure Password Free
Cryptographically secure passwords with customizable length and character sets.
Password Length vs Complexity
A 20-character password using only lowercase letters is stronger than an 8-character password with mixed types. NIST guidelines recommend minimum 8 characters but encourage 15+ for sensitive accounts. Our generator supports up to 64 characters.
Passwords to Never Use
- password123, admin, qwerty — top breached passwords
- Personal info — birthdays, names, pet names
- Keyboard patterns — 12345678, asdfghjk
- Reused passwords — same password across multiple sites
- Short passwords — under 12 characters
Store Passwords Safely
Use a password manager (Bitwarden, 1Password, KeePass) to store generated passwords. Never write them in plain text files, sticky notes, or spreadsheets. Password managers encrypt your vault with one master password.
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Frequently Asked Questions
How long should a password be?+
Minimum 12 characters for regular accounts, 16+ for sensitive accounts (banking, email, admin). Longer is always better.
Are generated passwords truly random?+
Our generator uses crypto.getRandomValues(), the browser's cryptographically secure random number generator — the same API recommended for security applications.
Should I change passwords regularly?+
NIST no longer recommends forced periodic changes. Change passwords when there's a breach, or if you suspect compromise. Focus on unique, strong passwords instead.