20+ free Chrome extensions from one developer. JSON formatter, tab manager, clipboard history, and more. No data collection, free forever.
What is Zovo Scanner?
Zovo Scanner is a free Chrome extension privacy and security scanner. It analyzes browser extensions for hidden risks — excessive permissions, data collection practices, and trust signals — so you can make informed decisions before installing. Every scan produces a detailed safety report with actionable insights.
With over 244,000 extensions analyzed, Zovo provides the most comprehensive extension safety database available. Whether you are a developer auditing your tools, a business securing employee browsers, or a privacy-conscious user, Zovo gives you the visibility you need.
How It Works
Search or paste an extension URL — Enter any Chrome Web Store extension to start a scan.
Review the safety report — See permission analysis, data access breakdown, risk indicators, and an overall safety score from 0-100.
Compare alternatives — Find safer extensions that do the same job with fewer permissions and better privacy practices.
Key Features
Permission Analysis
Every extension permission explained in plain language — what it accesses, why it matters, and what the risks are.
Safety Scoring
Evidence-based safety scores from 0-100 based on permissions, update frequency, developer reputation, and data practices.
Side-by-Side Comparisons
Compare any two extensions across features, pricing, permissions, and safety scores to find the best fit.
Alternative Suggestions
When an extension has red flags, Zovo suggests privacy-first alternatives with better safety profiles.
Manifest V3 Compatibility
Check which extensions have migrated to Manifest V3 and which still use the deprecated V2 format.
Data Practice Review
Detailed breakdown of what data each extension collects, stores, and transmits — with source citations.
Yes. Zovo Scanner is completely free with no hidden costs, no account required, and no data collection. Scan as many extensions as you want.
How is the safety score calculated?
Safety scores are calculated using a transparent, evidence-based methodology that weighs permission scope, data access patterns, update frequency, developer reputation, user reviews, and known security incidents. Every factor is documented and verifiable.
Can I compare two extensions side by side?
Yes. Visit the comparisons page to select any two extensions and see a detailed feature, pricing, permission, and safety comparison. You can also search for specific comparison pairs.