How to Create a Strong Password in 2026

Creating a strong password is the single most important step you can take to protect your online accounts. Yet most people still use weak, predictable passwords — and pay the price. This guide covers exactly what makes a password strong, step-by-step creation methods, and tools that do the hard work for you.

Quick answer: A strong password is at least 16 characters long, uses a mix of uppercase letters, lowercase letters, numbers, and symbols, and is unique to every account. The easiest way to create one instantly is with a free password generator.

What Makes a Password Strong?

Researchers at the National Institute of Standards and Technology (NIST) updated their guidelines in 2024: length is now the most important factor, not complexity. Here are the core requirements:

Factor

Minimum

Recommended

Length

12 characters

16–20+ characters

Character types

2 types

All 4 types (upper, lower, number, symbol)

Uniqueness

Not reused

Completely unique per account

No dictionary words

Avoid common words

Random characters or passphrases

No personal info

No name/birthday

Nothing guessable from social media

Step-by-Step: 3 Methods to Create a Strong Password

Method 1: Use a Password Generator (Fastest)

The easiest, most secure approach. A good generator uses cryptographically secure randomness to create passwords that are impossible to guess or crack.

1. Open a browser-based password generator that runs locally (no server = no data leaks)
2. Set length to 18–20 characters
3. Enable all character types: uppercase, lowercase, numbers, symbols
4. Click generate and copy the result straight into your password manager

Never type a generated password — copy-paste only to avoid errors and avoid keyloggers.

Method 2: The Passphrase Method

Passphrases — four or more random words joined together — are both memorable and secure. Example: correct-horse-battery-staple (coined by XKCD) has ~44 bits of entropy and is far harder to crack than P@ssw0rd!

1. Pick 4–6 truly random words (use dice or a word list, not words you "think" of)
2. Join them with hyphens, spaces, or numbers: piano-7-cloud-anchor-99
3. Optionally add a symbol at the start or end
4. Use only for accounts you need to type manually (e.g., computer login)

Method 3: The Substitution Method (Least Recommended)

Take a phrase you know and substitute characters: "My dog Max is 7 years old!" → MdM@x!7yo. This is far better than a simple word but weaker than truly random passwords. Only use this if you can't use a password manager at all.

What to Avoid When Creating Passwords

⚠️ Never use these as passwords or parts of passwords:

• Your name, nickname, or family members' names
• Birthdays, anniversaries, or other dates
• "password", "123456", "qwerty" or any variation
• Your company name or website
• Keyboard patterns like "asdfgh" or "zxcvbn"
• The same password you use anywhere else

How Long Does It Take to Crack a Password?

Modern GPUs can test billions of passwords per second. Here's how password length affects crack time (assuming random characters):

Password length

Character set

Time to crack

8 characters

Letters + numbers

Seconds–minutes

12 characters

All types

~2 years

16 characters

All types

Millions of years

20 characters

All types

Longer than the age of the universe

Store Your Passwords Safely

A strong password is useless if you store it insecurely. Here's the right approach:

• Use a password manager — apps like Bitwarden or 1Password encrypt and store all your passwords. You only remember one master password.
• Enable 2FA — add a second layer of protection on every account that supports it
• Never write passwords on paper or in unencrypted notes apps
• Never email or text passwords to anyone

How Often Should You Change Your Password?

NIST's 2024 guidelines reversed earlier advice: don't change passwords on a fixed schedule. Only change a password if:

• You believe the account was compromised
• A service you use suffered a data breach (check haveibeenpwned.com)
• You shared the password with someone who no longer needs it

Forcing frequent changes typically leads to weaker passwords (e.g., Password1 → Password2 → Password3).

Quick-Start Checklist

• ☑ At least 16 characters long
• ☑ Mix of uppercase, lowercase, numbers, and symbols
• ☑ Completely unique — not used on any other account
• ☑ No personal information
• ☑ Generated randomly (not "thought up")
• ☑ Stored in a password manager
• ☑ Account protected with 2FA

Create a strong password right now

Our free, browser-only generator creates cryptographically secure passwords instantly — nothing is sent to any server.

Generate a Strong Password →

Frequently Asked Questions

What is the strongest type of password?

A randomly generated password of 16+ characters using uppercase letters, lowercase letters, numbers, and symbols is currently the strongest type. Truly random passwords have maximum entropy — no pattern for an attacker to exploit.

Is a 12-character password strong enough?

12 characters is the absolute minimum acceptable in 2026. For important accounts (banking, email, password manager master password), use 16–20 characters.

Should I use the same strong password on multiple sites?

Never. Even a perfect 20-character password becomes useless if one site you use is breached and your credentials are sold. Every account needs its own unique password — which is why password managers are essential.

Can I use a phrase as a password?

Yes — passphrases of four or more random words are both secure and memorable. Avoid phrases from books, songs, or quotes that can be found in phrase databases. Use a dice-based word list (Diceware) for true randomness.