Bandwidth by app

See which app is using your bandwidth.

Live upload and download for every app on your Mac, right in the menu bar. Catch the backup choking your call, for free.

Download for Mac ↓

$ brew install seifip/kilobat/kilobat

Free forever
Pro $19 once
14-day refunds
macOS 14+
Open-source CLI

Free

Safari3.2 MB/s824 MB

Cloud backup2.1 MB/s240 MB

Night Drive186 KB/s312 MB

Kilobat12 KB/s14 MB

What is eating your bandwidth? Live traffic for every app, right in your menu bar. Catch the backup choking your call.

Better than Activity Monitor’s Network tab

Activity Monitor lists processes, not apps, and shows totals since launch rather than what is happening now. Kilobat groups helper processes under the app they belong to, sorts by live rate, and keeps a history of what each app used.

Live rates for every app, in bytes or bits per second.
Session totals and a network budget.
Usage history by app over 24 hours, 7 days or 30 days (Pro).
Destinations: which servers an app is talking to, in the dashboard.

Also in your terminal

The free, open-source CLI shows the same live view, with sorting, filters and search, and JSON for scripts:

kilobat status --watch

Questions

Does it need administrator rights?

No. Live per-app traffic works without root. Blocking needs the signed network filter, which you approve in macOS.

Does my traffic leave my Mac?

No. Kilobat reads counters on your Mac; history and rules stay local. There is no account or telemetry.

Get your network out of the dark.

Download for Mac ↓

$ brew install seifip/kilobat/kilobat