TabCost
Know which tab slows Chrome — then hibernate it in one click
What it does
If you’re the kind of person who keeps 20–100 tabs open, Chrome can get slow—and it’s hard to tell which tab is the culprit. TabCost makes it obvious and actionable. What TabCost does Shows per-tab memory (JS heap) when available Shows an Activity % estimate (how “busy” a tab is) Lets you hibernate (discard) tabs you’re not using Includes Search + filters: All / Heavy / Idle 10m+ Keyboard shortcuts: ↑/↓ navigate, Enter hibernate, Esc clear, Ctrl/Cmd + K search
