Overview
TabCost helps you find the tabs that slow Chrome down — fast.
See which tabs are using the most memory, which ones are “busy”, and hibernate idle tabs to keep your browser smooth.
Why you’ll love it
Instant visibility: See per-tab memory (JS heap) + an activity estimate
Find offenders quickly: Filter All / Heavy / Idle 10m+
Search tabs: Find any tab by title or URL
One-click cleanup: Hibernate (discard) idle tabs to free resources
Keyboard friendly:
↑ / ↓ to navigate
Enter to hibernate selected
Esc to clear
Ctrl/Cmd + K to search
How it works
TabCost measures performance signals locally in your browser.
Some restricted pages (like chrome:// or system pages) don’t allow measurement—those tabs may show unavailable metrics.
Privacy first
No tracking
No analytics
No data collection
No servers — everything runs on-device
Tags
Privacy Practices
🔐 Security Analysis
This extension hasn't been security-scanned yet.
