LeakRadar - Data Breach Checker
v1.0.0 Updated Feb 26, 2026 20.79KiB
✅Recently updated
Description
LeakRadar - Data Breach Checker instantly shows you how many leaked credentials exist for any website you visit.
How it works:
As you browse the web, LeakRadar automatically checks each domain against our database of 290 billion+ breached records collected from stealer logs, combolists and dark web dumps. A colored badge on the extension icon tells you at a glance whether the site has known credential leaks.
Click the extension icon to see a breakdown:
- Employees compromised — corporate accounts from the organization
- Third-parties compromised — vendors, agencies and partners
- Customers compromised — client accounts on the platform
Want to see the actual leaked data? Click "View Full Report" to open the full breach report on LeakRadar, where you can explore exposed credentials, password strength analysis and more.
You can also right-click any domain name on a web page and select "Check on LeakRadar" to instantly look it up.
Key features:
- Automatic breach check on every website you visit
- Color-coded badge: green (clean), orange (moderate exposure), red (high exposure)
- Detailed popup with employee, third-party and customer credential counts
- Right-click context menu to check any domain
- 24-hour local cache for fast performance
- No account required to see stats
- Zero data collection — we only call the LeakRadar public API for the domain you visit
Built by LeakRadar.io — the threat intelligence platform trusted by security teams, pentesters and incident responders worldwide.
Reviews
Loading reviews...
Permissions (4)
Permissions
activeTabℹ Can access the current tab when you click the extension contextMenusℹ Can add items to the right-click menu storageℹ Can store data locally in your browser tabsℹ Can see your open tabs and their URLs
Details
| Version | 1.0.0 |
| Updated | Feb 26, 2026 |
| Size | 20.79KiB |
| First Seen | Mar 26, 2026 |
Popular in developer
React Developer Tools
by Meta
5M
★ 3.95
developer
5M
★ 3.95
developer
Lighthouse
by lighthouse-extension-owners
1M
★ 4.42
developer
1M
★ 4.42
developer
Контур.Плагин
by kontur.extension
1M
★ 3.11
developer
1M
★ 3.11
developer
Similarweb - Website Traffic & SEO Checker
by Similarweb
1M
★ 4.66
developer
1M
★ 4.66
developer
Clear Cache
by Little Void LLC (Ben Bojko)
1M
★ 4.45
developer
1M
★ 4.45
developer
Popular Extensions
Adobe Acrobat: PDF edit, convert, sign tools
by Adobe Inc.
331M
★ 4.40
workflow
331M
★ 4.40
workflow
Chrome Remote Desktop
by Chrome Remote Desktop Release Managers
38M
★ 3.14
workflow
38M
★ 3.14
workflow
Microsoft Single Sign On
by Microsoft
36M
★ 2.27
workflow
36M
★ 2.27
workflow
Cisco Webex Extension
by cisco.chromestore
24M
★ 2.34
social
24M
★ 2.34
social
Kami for Google Chrome™
by Kami
19M
★ 4.56
education
19M
★ 4.56
education