Perf Manager · Chrome Performance Manager

Local tab butler: side-panel usage, one-tap sleep & domain batch, auto policy, session snapshots, site cleanup. No analytics. Detailed description Perf Manager is a local Chrome side-panel extension for keeping heavy tab sets under control—without sending your browsing behavior to a server. What you can do • See system memory / CPU summaries and tab states (active, discarded, muted) in the side panel • Worksets in one tap: keep the last N tabs, keep this window only, or discard everything except media • Batch discard or close by domain • Auto policy by idle time and memory threshold (discard is recommended; wake anytime) • Protect pinned tabs, audible tabs, pages with unsaved forms, plus a host whitelist • Save / restore workspace snapshots before you manually restart Chrome • Track visited sites and clear Cookie / cache only when you choose • Optional toolbar badge for memory or CPU; optional popup-window blocking (off by default) About the numbers Per-tab memory prefers Chrome process data when available. In some environments it falls back to cache and estimates—treat figures as guidance, not a lab instrument. Privacy Settings and records stay on your device by default. No behavior analytics upload. Site cleanup runs only when you trigger it. Who it’s for People who keep many tabs open and want a practical butler—not flashy claims, just local control.