🛡️Free tool
Check if your email was exposed in data breaches
Enter your email address and we’ll check it against known public data breaches. The lookup runs in your browser.
The check runs in your browser. We never store your email.
Frequently asked questions
What does this leak check do?
It looks your address up in databases of known public breaches and shows which ones it appears in. The check runs against public breach data — we don't store the address you type.
My address is in a breach — what now?
Change the password on that site and anywhere you reused it, and turn on two-factor authentication. A leaked address itself can't be recalled; what matters is that it no longer unlocks anything.
How do addresses end up in breaches?
A service gets hacked and its user table is published or sold. That's why a unique password per site matters more than a complex one: one leak then costs you one account, not all of them.
Updated: 2026-08-17
Other tools
Check my IP
See what websites know about you.
Password checker
See how strong your password is.
Password generator
Create a strong password in a second.
What your browser reveals
See what sites detect without a VPN.
Speed test
Measure your connection speed.
WebRTC leak test
Check if your browser leaks your real IP.
Self-destructing note
Encrypted note that burns after being read.