How to use Task Manager to see network usage

Task Manager shows network activity per process and per adapter. Learn where to look, what the numbers mean and where a live readout helps.

Task Manager is the quickest built-in way to see which program is using your network.

Open it

Press Ctrl+Shift+Esc, or right-click the taskbar and choose Task Manager. If you see a small window, select More details.

Per-program usage

On the Processes tab, find the Network column and click it to sort. The values show the current network use of each program as a percentage of the connection and in Mbps. A program near the top is a good first suspect.

Per-adapter usage

On the Performance tab, choose Wi-Fi or Ethernet. A graph shows throughput, with send and receive figures below. This helps confirm which adapter is active.

App history

App history accumulates network and metered-network totals per app since a date shown at the top. It is useful for a rough view of data use over days.

Limits

Task Manager must be open to be useful, and it does not stay in view.
Its percentages depend on the link speed Windows reports.
It does not combine well with a quick glance during a game or call.

Using both

Keep a compact taskbar readout for constant awareness and open Task Manager only when you need the culprit’s name. NetSpeedDisplay even adds a Task Manager entry to its right-click menu for a quick jump.

NetSpeedDisplay and built-in Windows tools

How an always-visible speed display complements Task Manager and Windows Settings.

Find which app is using your internet on Windows

Use Task Manager, Resource Monitor and Windows data usage settings to find which app is using your bandwidth, and see live speed while you do it.

Published 2026-10-17