Password Strength Checker

Check Your Password Strength

Security Note: This tool analyzes password strength locally in your browser. Your password is never sent to our servers or stored anywhere. For maximum security, never enter your actual account passwords.

Password Analysis Results

Overall Password Strength

Your password needs improvement to ensure security.

64/100

Good

B

Password Strength Assessment

Very Weak Weak Moderate Strong Very Strong

Detailed Analysis

Strength Factors

Length 8/10

Uppercase Letters 6/10

Lowercase Letters 10/10

Numbers 4/10

Special Characters 7/10

Vulnerability Checks

No common patterns detected

Your password doesn't follow easily guessable patterns

No obvious dictionary words

Your password isn't based on common dictionary words

Sequential characters detected

Your password contains sequential characters like "abc" or "123"

No excessive repeated characters

Your password doesn't contain too many repeated characters

No obvious personal information

We couldn't detect common personal info patterns

Estimated Time to Crack

Online Attack

3 years

Rate-limited online guessing attack

Offline Fast Attack

2 months

Offline attack with common hardware

Massive Cracking Array

3 days

Massive corporate or government resources

Note: These estimates assume the attacker has no additional information about your password and is based on current computational capabilities. Security standards evolve over time.

Improvement Suggestions

Tips for Strong Passwords

Do's

Use at least 12 characters
Include uppercase and lowercase letters
Include numbers and special characters
Use a passphrase of random words
Use different passwords for each account
Consider using a password manager

Don'ts

Use personal information (name, birth date)
Use sequential characters (abc123)
Use common substitutions (p@ssw0rd)
Reuse passwords across accounts
Share your passwords with others
Store passwords in plain text

Strong Password Example

Correct-Horse-Battery-Staple-42!

This is an example of a strong password using a passphrase. Don't use this exact password!

Understanding Password Security

In today's digital world, strong passwords are your first line of defense against unauthorized access to your accounts. Understanding what makes a password strong is essential for protecting your sensitive information.

Why Password Strength Matters

Weak passwords are among the leading causes of account compromises and data breaches. Hackers use various methods to crack passwords:

Brute Force Attacks

Attackers use automated programs to try every possible combination of characters until they find the correct password. Longer, more complex passwords exponentially increase the time required for a successful brute force attack.

Dictionary Attacks

These attacks use lists of common words, phrases, and previously leaked passwords. Passwords containing uncommon words or random character combinations are more resistant to dictionary attacks.

Social Engineering

Attackers gather information about you from social media and other sources to guess passwords containing personal information like names, birthdays, or interests.

Credential Stuffing

After a data breach, attackers try username and password combinations from the breached site on other websites. Using unique passwords for each account protects against this attack.

The Elements of a Strong Password

A strong password typically includes:

Length: Longer passwords are inherently stronger. Aim for at least 12 characters.
Complexity: Include a mix of uppercase and lowercase letters, numbers, and special characters.
Unpredictability: Avoid common words, phrases, or patterns that could be easily guessed.
Uniqueness: Use different passwords for different accounts to limit damage from a single breach.
No personal information: Avoid including easily discoverable information like your name, birthday, or pet's name.

Password Strength Metrics

Password strength is typically measured by estimating how long it would take for an attacker to crack a password through different methods:

Strength Level	Characteristics	Typical Cracking Time	Example
Very Weak	Short, single-case, numbers only, or common words	Seconds to minutes	password, 123456
Weak	Short with some complexity, or longer single-case	Hours to days	Password1, sunshine
Moderate	Medium length with mixed character types	Weeks to months	P@ssw0rd123
Strong	Long with mixed character types, not based on dictionary words	Years to decades	j7K&9Lp2$zX4!
Very Strong	Very long, random, with all character types	Centuries or more	Ri5&K9zQ*p2V@8nL!7xTw

Creating Memorable Yet Strong Passwords

The challenge with password security is creating passwords that are both strong and memorable. Here are some methods to create strong, memorable passwords:

The Passphrase Method

String together multiple random words with spaces or separators. For example: "correct-horse-battery-staple" or "apple_tree_blue_car".

This creates a password that's long (good) and easier to remember than random characters, while still being difficult to crack.

The Sentence Method

Create a password from the first letters of a memorable sentence or phrase.

For example, "My first car was a blue 1982 Toyota Corolla!" becomes "Mfcwab1982TC!"

The Base Word Method

Start with a base word or phrase and apply consistent modifications for different accounts.

For example, "Butterfly" could become "AmazonButterfly$22" for Amazon and "NetflixButterfly$22" for Netflix.

Password Managers

The most secure approach is to use a password manager, which can generate and store strong, unique passwords for each of your accounts.

You only need to remember one master password, while all your other passwords can be extremely complex.

Beyond Strong Passwords

While strong passwords are essential, they're just one part of a comprehensive security strategy:

Two-Factor Authentication (2FA): Adds an extra layer of security by requiring something you know (password) and something you have (like your phone).
Regular Password Changes: Consider changing passwords for critical accounts every 3-6 months.
Password Manager: Use a reputable password manager to generate and store strong, unique passwords.
Security Questions: Treat the answers to security questions like additional passwords. Consider using fictional answers for added security.
Breach Monitoring: Regularly check if your accounts have been compromised in data breaches using services like Have I Been Pwned.

Our Password Strength Checker helps you assess the security of your passwords and provides actionable advice for improving them. Remember that password security is a continuous process rather than a one-time effort, and staying vigilant is key to protecting your digital identity.