How to Check If Your Password Was Leaked (Free, No Signup)
Billions of credentials are floating around in breach dumps. If you reuse passwords, some of yours are probably in there. Here's how to check safely and for free — and what to do next.
How leak checks work
Reputable checkers compare your password or email against known breach datasets without exposing your actual password (they use hashed, partial-match techniques). You learn whether it appears in a breach, not who else's did.
Step 1: Check your email
Enter your email in a breach checker to see which services exposed your data. This tells you where to change passwords first.
Step 2: Check specific passwords safely
Use a checker that hashes your input. If a password shows up, treat it as compromised everywhere you used it.
Step 3: If you find a match
- Change that password immediately, everywhere it's reused.
- Turn on two-factor authentication on those accounts.
- Stop reusing passwords — that's what turns one breach into ten.
Step 4: Prevent the next one
Use a password manager to generate unique passwords, enable 2FA, and check your email against breaches every few months.
The one habit that matters most
Unique passwords per site. A single reused password is how one leaked database becomes a chain of compromised accounts.
Frequently asked questions
Is it safe to check a password in a leak tool?
Yes, if the tool uses hashing/partial matching so your full password is never sent or stored. Avoid any tool that asks for your password in plain text alongside your username.
What should I do if my password was leaked?
Change it everywhere it's used, enable two-factor authentication, and switch to unique passwords managed by a password manager.
How often should I check?
Every few months, or any time you hear a service you use was breached.
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