Network monitor & app firewall for Mac

Your connections.
In plain sight.

See what’s connecting, where it’s going, and how much it’s sending. A clear view of your Mac’s network, with the controls in your hands.

Apple Silicon + Intel · macOS 15+

Monitoring by default. Blocking by your rules.
MacShield showing an app sidebar and a world map of network destinations with connection paths.
A world of connections. One clear view.

Know your network.

A little more clarity. A lot more control.

A CLEARER PICTURE

Every app.
In the open.

See which apps are connecting, with live traffic and connection states.

YOUR CALL

Watch by default.
Block by choice.

Add your own rules for apps, domains or IPs. You decide what gets blocked.

STAYS CLOSE

Your history.
Your Mac.

Traffic history and rules stay on your Mac. Packet contents aren’t stored.

THE BIGGER PICTURE

A world of
connections.

Explore destination maps, approximate IP locations, and paths from your Mac.

MacShield menu-bar panel showing upload and download speeds, a traffic chart, totals and Recently Blocked.

ALWAYS WITHIN REACH

A little window
on your network.

Live speeds, a traffic graph and recent blocks. Right in your menu bar.

MacShield connection list with app names, live traffic indicators, active and closed states, and total network speeds.

Every app has a story.

See what’s happening behind the window.

Bring your Mac’s network activity into focus. Follow each app, expand its connections, and explore the traffic behind it.

  • Search apps, domains and IP addresses
  • See live upload and download activity
  • Explore traffic over minutes, hours, days and months
  • Add your own app, domain and IP block rules
Need a hand getting started?
MacShield General settings with menu-bar graph styles, launch at login, Dock icon and background monitoring options.

Quietly, your way.

Make room in your menu bar.

Choose a graph, live speeds, or both. Let MacShield start at login and keep monitoring in the background, with or without a Dock icon.

  • Graph, speed, and combined menu-bar styles
  • Upload and download indicators at a glance
  • Optional launch at login and background monitoring
  • Explore the interface with clearly labeled demo data
Need a hand getting started?

Up and running

A clearer network in three steps.

  1. 1

    Make yourself at home

    Download the latest MacShield DMG, drag the app into Applications, and open it on your Mac.

  2. 2

    Approve the network filter

    Choose Enable Filter, then approve MacShield’s system extension and content filter in System Settings.

  3. 3

    Watch, then choose

    Explore live connections and the map. Add a manual block rule only when you decide a connection should stop.

Your existing connections are allowed unless they match an enabled manual block rule.

A few useful answers

Before you get started.

Which Macs are supported?

MacShield supports Apple Silicon and Intel Macs running macOS 15 or later. Network monitoring requires approval of its system extension and content filter in System Settings.

Will MacShield block apps automatically?

No. MacShield monitors connections by default. Only enabled Block List rules that you add manually can block traffic. You can create rules for apps, domains or IP addresses, including wildcard domains and explicit app exceptions.

Where is my traffic history stored?

Traffic history and rules stay on your Mac. MacShield does not store packet contents. Connection maps use a bundled IP-location database; Apple Maps may request background map tiles.

How accurate are the map locations?

Locations are approximate estimates from the destination IP address, not the physical location of a person or device. Local-network connections, observed Private Relay hostnames and destinations without a known location are shown separately.

Can it show every destination name?

Some encrypted connections hide their destination hostname. MacShield shows names when they can be observed and uses IP addresses where a name is unavailable. You can use app or IP rules for those connections.

Does monitoring continue when I close the window?

Yes, when Allow running in background is enabled. You can keep live speeds and a traffic graph in the menu bar, hide the Dock icon and start MacShield automatically at login.

Know what’s connecting.
Keep the control.

macOS 15+ · Apple Silicon + Intel · Latest stable release