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Introducing Extension Auditor v6.3.12

Extension Auditor Security Analyzer - Featured on Product Hunt
Extension Auditor featured on Peerlist

Find & Analyse Chrome Extensions
Instantly

Search for any Chrome extension and instantly see key details like permissions, risks, and user ratings. Stay informed before you install.

Recently Scanned Extensions

Extension
Category
Users
Rating
Reviews
Version
Scanned
Actions
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TwExtract - export anyone's tweets to CSVTwExtract - export anyone's tweets to CSVJust now
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์ฟ ๋Œ€ ์ด๋ฏธ์ง€ ์ˆ˜์ง‘๊ธฐ์ฟ ๋Œ€ ์ด๋ฏธ์ง€ ์ˆ˜์ง‘๊ธฐJust now
Picshot New TabPicshot New TabJust now
PreviewMePreviewMe1m ago
Convert to localhostConvert to localhost1m ago
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The browser is the organization's largest unmonitored attack surface.

Extension Auditor helps you identify, assess, and block unsafe extensions to ensure secure, compliant environment across your workforce.

WHY EXTENSION AUDITOR?

Research-Backed
Analysis

Our risk models are built on 30+ peer-reviewed security papers covering extension threats, permission abuse, and supply chain attacks.

Not heuristics. Not guesswork. Real academic research translated into actionable risk scores.

CRITICALSensitive permission that could be dangerous if misused
HIGHCould potentially be used maliciously
MEDIUMRequires caution, provides significant capabilities
LOWLimited potential for misuse

Catch Changes Before Incidents

We monitor 11 event types every 2 hoursโ€”permission changes, ownership transfers, visibility shifts, and more.

Get alerted the moment an approved extension turns risky, not after it's already exfiltrated data.

Permission Change
2hr ago
Version Update
4hr ago
Ownership Transfer
1d ago
CSP Change
2d ago
Google Workspace
Microsoft 365

Built for Security Teams

Connect Google Workspace or Microsoft 365 in minutes. Alerts flow to Slack, Teams, or your SIEM via webhook. Full REST API for automation.

487,000+ Extensions Analyzed

The most comprehensive Chrome extension security database. Real threat intelligence from scanning the entire Chrome Web Storeโ€”not just the extensions you ask about.

487K+
extensions in our database
72K+
with permissions
24hr
full crawl cycle
2hr
monitored alerts

Research-Driven Analysis:

30+ Peer-Reviewed Security Research Papers

Uncover Evidence-Based Insights from using graph analysis of historical data of Publisher Reputation and Permissions Changes, and Reviewers.

~0K+

Total Extensions Analysed

0k+

Publishers Profiled based on Reputation scoring and graph analysis of historical data.

~0k+

Malicious Extensions Found

~0k+

Active Extensions

~0k+

Reduction in Browser-Based Risk Exposure

REST API

Powerful API, simple integration

Build anything with our well-documented API. Get started in minutes with our comprehensive guides and examples.

api.example.com
curl -X POST https://api.example.com/v1/users \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "John Doe",
    "email": "john@example.com",
    "plan": "pro"
  }'
// Response 200 OK
{
  "id": "usr_123",
  "name": "John Doe",
  "email": "john@example.com",
  "plan": "pro",
  "created_at": "2024-02-28T09:00:00Z"
}
GET
/users

List all users

POST
/users

Create a new user

PUT
/users/{id}

Update user details

RESTful API

Simple and intuitive REST API following industry standards

Rate Limiting

Generous rate limits with clear headers and documentation

Authentication

Secure API key and OAuth2 authentication methods

Choose the plan that fits your security needs

From individual developers to enterprise security teams, we have a plan for you.

Save up to 17% with annual billing

Free

$0/month
$0/month
Billed monthly

Basic visibility into browser extensions

Individuals exploring extension safety

Get started free
What's included
60 extension scans per month
Basic risk analysis
Essential security insights
Permission visibility
Extension details view
Most popular

Professional

$33/month
$30.75/month
Billed monthly

Professional-grade risk analysis for teams

Small security teams and startups

Start free trial
What's included
500 scans per month
5 team members included
Detailed contextual risk analysis
Permission analysis & insights
Extension monitoring & alerts
Email notifications
Priority support
Enterprise

Business

$299/month
$275/month
Billed monthly

Advanced governance for security teams

Enterprise security and compliance teams

Contact sales
What's included
5,000 scans per month
25 team members included
Full API access
Compliance mapping (SOC2, GDPR)
SSO support
Advanced threat intelligence
Custom security policies
Webhook integrations

Need a custom solution? We offer tailored plans for large enterprises with unlimited scans, custom integrations, and dedicated support.

Talk to our team
Ishan Girdhar

Ishan Girdhar

Founder, Extension Auditor

Still have questions?

Can't find what you're looking for? Our team is here to help! Whether you need clarification about our security analysis, have questions about integration, or want to learn more about protecting your organization from risky extensions.

FAQ

We track 11 distinct event types:

  • Permission changes โ€” new capabilities requested
  • Host permission changes โ€” expanded website access
  • Ownership/publisher changes โ€” potential supply chain risk
  • Account type changes โ€” publisher verification status
  • Version updates โ€” new code deployed
  • Visibility changes โ€” public, unlisted, or removed
  • Manifest changes โ€” configuration modifications
  • Content Security Policy changes โ€” security boundary updates
  • Review changes โ€” user feedback trends
  • Rating changes โ€” reputation signals
  • Security verdict changes โ€” flagged by stores or security vendors