The Only Multi-Browser
Extension Security Scanner

Assess the security and privacy risks of browser extensions across Chrome, Edge, and Firefox, for free. No sign up required.

ChromeChrome
EdgeEdge
FirefoxFirefox

Try it now — scan a popular extension in one click

Know exactly what your extensions do

Every line of code is analyzed to give you a clear and comprehensive picture of your extensions' security risks.

Full Permission Analysis

Deep inspection of all requested permissions, highlighting over-privileged access and potential security risks.

Tracking & Privacy Detection

Identifies tracking scripts, analytics beacons, and data collection patterns that may compromise user privacy.

Vulnerability Scanning

Detects known vulnerabilities, insecure API usage, and potential attack vectors in extension code.

Obfuscation Detection

Flags deliberately obscured code that may hide malicious behavior from security review.

Cross-Origin Policy Analysis

Examines content security policies, CORS configurations, and cross-origin requests to detect data exfiltration risks.

Malicious Domain Detection

Scans all outbound connections against threat intelligence feeds to flag communications with known malicious domains.