Password Strength Checker

Passwords are the key to your online security, but many people still use weak or repeated ones. Is yours strong enough? Use the Password Strength Checker to test your password instantly and get clear tips to make it safer. Your password is checked right in your browser — it isn't sent anywhere or stored.

How does the strength checker work?

The tool estimates how resistant your password is to guessing and brute-force attacks. It looks at length (the biggest factor), the variety of characters (uppercase, lowercase, numbers, symbols), and whether it contains predictable patterns — dictionary words, common sequences like 1234 or qwerty, repeated characters, or simple substitutions. From these it gauges the password's entropy (randomness) and gives a rating with suggestions. A higher entropy means exponentially more combinations an attacker would have to try.

What makes a strong password?

A strong password is built to be hard to guess and easy to keep secure:

• Use at least 12 characters (16+ is even better).
• Mix character types: uppercase and lowercase letters, numbers, and symbols.
• Make it unique per account so one breach doesn't affect everything.
• Avoid personal details like your name, birthday, address, or anything visible on social media.
• Skip obvious patterns such as 1234, abcd, qwerty, or repeats like 111111.
• Never use common passwords like "password" or "admin" or simple variations.

Why is password security so important?

Weak or reused passwords can lead to serious problems:

• Account takeovers and data theft — attackers reach your accounts and harvest personal and financial details for fraud or identity theft.
• Loss of privacy — default or weak passwords on smart devices like cameras and routers can let others view or control them.
• Business damage — compromised logins can mean stolen data, fake posts from official accounts, or ransomware and extortion.

Compromised credentials are linked to a large share of data breaches, which is exactly why testing and strengthening your passwords matters.

Other smart ways to stay safe online

• Turn on two-factor authentication (2FA) so a stolen password alone isn't enough.
• Use a password manager to store strong passwords in an encrypted vault behind one master password.
• Keep antivirus protection enabled against malware that steals logins.
• Use a VPN on public Wi-Fi to protect your connection on shared networks.
• Watch for phishing — verify the site and sender before entering a password.
• Change passwords when it matters — after a breach or suspected compromise, rather than on a pointless frequent schedule that leads to weaker choices.

Frequently asked questions

Is it safe to type my password into this checker?

Yes. The check runs locally in your browser; your password isn't transmitted or saved. Still, avoid testing a password you're actively using on any tool you don't trust.

What counts as a strong rating?

Length and unpredictability drive the rating. A long password with mixed character types and no dictionary words or patterns scores highest.

Does adding symbols guarantee a strong password?

No — a short password with symbols can still be weak. Length matters most; symbols help on top of sufficient length.

How often should I change my passwords?

Change them when there's a reason (a breach or suspected compromise). Forced frequent changes tend to produce weaker, predictable variations.

Related tools

• Password Generator — create a strong, random password to replace a weak one.
• WordPress Password Hash Generator — create WordPress-compatible hashes.
• MD5 Generator — generate an MD5 hash from any text.
• What Is My IP — check your connection and confirm a VPN is active.