Password Strength Meter
Analyse password strength with entropy calculation, estimated crack time, and specific weakness detection. All processing happens locally - your password is never sent anywhere.
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About Password Strength Meter
Find Out How Strong Your Password Really Is
You probably think your password is strong enough. Most people do — until their account gets compromised. The Password Strength Meter analyzes your password in real time and gives you an honest assessment of how resistant it is to common attack methods like brute force, dictionary attacks, and credential stuffing.
Type your password into the tool and instantly see a strength rating along with specific feedback on what makes it strong and what makes it vulnerable. Everything runs locally in your browser — your password is never transmitted, stored, or logged anywhere.
What the Password Strength Meter Evaluates
The tool examines multiple factors that determine password security. Length is the most important — every additional character exponentially increases the number of possible combinations an attacker must try. The Password Strength Meter shows you how password length alone affects estimated crack time.
Character variety matters too. A password using only lowercase letters is far weaker than one mixing uppercase, lowercase, numbers, and special characters. The meter rewards diverse character sets and penalizes passwords that rely on a single type.
The tool checks for common patterns that attackers exploit. Keyboard walks like qwerty or 12345, common substitutions like replacing a with @ or e with 3, dictionary words, and popular passwords from leaked databases all weaken your security. The Password Strength Meter identifies these patterns and warns you about them.
It also estimates how long it would take for different types of attackers to crack your password — from a casual hacker using a laptop to a well-funded adversary with specialized hardware.
Why You Should Check Every Password
Data breaches happen constantly. Major companies with billions of dollars in security budgets still get hacked. When a service you use is breached, the strength of your password determines whether attackers can crack it from the stolen database. A strong password might take centuries to crack even from a leaked hash, while a weak one falls in seconds.
Reusing passwords across multiple services amplifies the risk. If your email password is the same as your banking password, one breach compromises both. The Password Strength Meter helps you ensure that every individual password meets a high security standard.
Who Should Use This Tool?
Everyone who uses the internet. That is not an exaggeration. From teenagers creating social media accounts to senior citizens managing online banking, password strength affects every digital citizen.
IT professionals and system administrators use the Password Strength Meter to validate password policies. Before rolling out a new policy requiring twelve-character minimum passwords with mixed characters, they test sample passwords to verify the policy produces genuinely strong credentials.
Business owners responsible for company accounts use the tool to check whether their team's password practices meet security standards. A single weak password on a shared admin account can expose an entire organization.
Developers building authentication systems test their password validation logic against the meter to ensure they are rejecting truly weak passwords and accepting strong ones.
Tips for Creating Stronger Passwords
Use passphrases instead of single words. A phrase like correct horse battery staple is easier to remember than xK9#mP2v but can be equally strong due to its length. The Password Strength Meter demonstrates this by showing high strength scores for long passphrases.
Never use personal information. Your birthday, pet's name, or street address are easily discoverable through social media and are among the first things attackers try.
Use a unique password for every account. A password manager makes this practical by storing all your credentials securely so you only need to remember one master password.
Change passwords immediately if a service you use reports a data breach. Do not wait for the company to force a reset.
Check Your Passwords Now
Security starts with awareness. Open the Password Strength Meter above, test your most important passwords, and upgrade any that fall short. Your future self will thank you.