Chrome Memory Saver vs TabNap: What's the Difference?

If you've looked into this at all, you've probably found Chrome's own Memory Saver setting (Settings → Performance) before you found any extension. It's a fair question: why install something else when Chrome already does tab-sleeping natively?

What Chrome's Memory Saver actually does

Turned on, Chrome will discard inactive tabs under memory pressure much like any tab suspender does — the process is freed, the tab reloads when you click back into it. It protects tabs playing audio, tabs with active notifications, and a few other cases automatically. It works, and it's free, and it's already there.

Where it stays a black box

The gap isn't whether it works — it's visibility and control:

• No running number. Chrome doesn't show you how much memory it's actually freed over time. You get a vague "Memory Saver is active" style of confirmation, not a measured total.
• No per-site control past a point. You can exempt specific sites, but there's no dashboard showing what's currently asleep versus active across your whole tab set at a glance.
• No separate pressure vs. idle logic you can see or tune. It's tuned by Google, for the general case, and you can't see or adjust the thresholds it's actually using.

What TabNap adds on top

• A live dashboard: current system RAM%, active/sleeping/open tab counts, and a running total of RAM TabNap has measured freeing — a real before/after reading around each sleep event, shown as a cumulative estimate rather than a live number.
• Two independent triggers you can see and adjust: an idle timeout (default 10 minutes) and a separate real memory-pressure check, so tabs sleep for a reason you can actually inspect.
• Default protection for your active tab, pinned tabs, anything playing audio, and known meeting sites (Google Meet, Zoom, Teams, Discord, Webex) — with pinned-tab and audio-tab protection togglable if you want fuller automatic control instead.
• A one-click "Never Sleep" list for any other site you want excluded yourself.
• No account, no analytics, no server — everything stays in Chrome's local storage on your device.

If you just want tabs to stop eating RAM and don't care about the details, Chrome's built-in setting is genuinely fine. If you want to see what's actually happening and control it precisely, that's the gap TabNap is built to fill.