Password Breach Checker - Check if Your Email/Password is Compromised | 30tools

Free password breach checker to see if your email or password has been compromised in data breaches. Check against billions of breached accounts instantly using HaveIBeenPwned database. Protect your online security by checking if your credentials have been exposed in data breaches.

Features

  • Email breach checking against HaveIBeenPwned database
  • Password security checking using k-anonymity
  • Detailed breach information and dates
  • Privacy-focused - passwords never leave your browser
  • Free unlimited checks
  • Real-time results

How It Works

Our tool uses the HaveIBeenPwned API to check if your email has appeared in known data breaches. For passwords, we use k-anonymity to check against compromised passwords without sending your actual password to any server.

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Password Breach Checker

Check if your password has been compromised in data breaches. Secure password checking using k-anonymity for maximum privacy.

Free Unlimited ChecksPrivacy FocusedReal-time ResultsBillions of Records
Password Security Check

Your password is hashed locally and never sent to our servers. We use k-anonymity for secure checking.

How It Works

Email Checking

We check your email against the HaveIBeenPwned database, which contains billions of compromised accounts from known data breaches.

Password Checking

Your password is hashed locally and checked using k-anonymity. Your actual password never leaves your browser.

Privacy & Security
Passwords are hashed locally
No data stored on our servers
Uses k-anonymity for security
Powered by HaveIBeenPwned
Security Tips

• Use unique passwords for each account

• Enable two-factor authentication

• Use a password manager

• Regularly check for breaches

• Update compromised passwords immediately

Why Use Our Breach Checker?

Privacy First

Your passwords never leave your browser. We use secure hashing and k-anonymity.

Comprehensive

Check against billions of compromised accounts from major data breaches.

Real-time

Get instant results with up-to-date breach information from HaveIBeenPwned.

Detailed Info

Get detailed information about breaches including dates and compromised data.