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Mac Ninja

Put idle tabs to sleep and give busy background apps a lower priority on Mac

Verified ownerFree trial · from $9.99Launching 10 May 2027
Votes revealed at 17:00 UTCVisit macninjaa.com

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What it does

About Mac Ninja

Mac Ninja is a menu bar app for people who keep a lot of browser tabs open. It puts idle tabs to sleep so they can give back memory while keeping their place in the tab bar. Click a sleeping tab and it reloads. When a background app competes with the app you’re using for CPU time or disk access, Mac Ninja can lower its priority. The dashboard shows which tabs are asleep and which apps have been slowed down. The optional Mac Ninja Helper for Chrome can also clean up tabs left behind by browser agents after a session has been untouched for eight hours. You can change the delay or turn cleanup off. Mac Ninja works on Intel and Apple silicon Macs running macOS Catalina 10.15 or later. The seven-day trial includes all features and requires no payment card. A license covers up to three Macs and costs US$9.99 per year or US$24.99 once.
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