Chrome Extension Size Analyzer

Extensions run background scripts, inject content into pages, and use memory even when not active. Each extension adds startup time, memory overhead (10-100MB), and can slow down page loading.

Ad blockers, password managers, VPNs, video downloaders, and grammar checkers typically use the most memory. Extensions that modify every webpage (like dark mode) add CPU overhead to each page load.

Go to chrome://extensions > Developer mode ON > Details on any extension to see size and permissions. Use Chrome Task Manager (Shift+Esc) to see memory usage per extension.

Yes! Even disabled extensions use some resources. Remove extensions you haven't used in 30+ days. For occasional use, consider using the website version instead of the extension.

Permissions like 'Read and change all your data on websites' give extensions broad access. Only install extensions from trusted developers and review permissions carefully.