Mac Ninja
Put idle tabs to sleep and calm background apps on your Mac
ProductivityPaid#macos-productivity-uti
Launches Dec 11, 2026 at 00:00 UTC
What is Mac Ninja?
Mac Ninja is a macOS menu bar utility that puts idle browser tabs to sleep and lowers the CPU priority of busy background apps. Tabs stay in place and reload when you return. Its dashboard shows recent activity. The seven-day trial needs no credit card. After the trial, it costs $9.99 per year or $24.99 for a lifetime license for up to three Macs.
Mac Ninja features
- Put idle browser tabs to sleep without closing them.
- Lower the CPU priority of busy background apps.
- See recent activity in the macOS menu bar dashboard.
Who uses Mac Ninja and for what
- Reduce the impact of idle tabs during the workday.
- Manage background activity on a Mac with several apps open.
Mac Ninja FAQ
What happens when a tab goes to sleep?
The tab stays in place and reloads when you return to it.
Which Macs does Mac Ninja support?
Mac Ninja runs on Apple Silicon and Intel Macs with macOS 10.15 or later.
What does Mac Ninja cost?
Try it for seven days without a card. After the trial, choose $9.99 per year or $24.99 once for up to three Macs.
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