SterJo NetStalker vs Netstat: Which Should You Use to Monitor Network Connections?
Windows includes netstat — a built-in command-line tool that shows active network connections. SterJo NetStalker does the same thing but with a graphical interface, real-time updates, and process identification. Both are free. Which one should you use?
The answer depends on what you're trying to do and how comfortable you are with the command line. This guide explains what each tool does well, where each one falls short, and which is the better fit for different use cases.
Quick Verdict
Use netstat if you're comfortable with command line, need to script or automate network checks, or are working in a server environment where no GUI tools are available.
Use SterJo NetStalker if you want a visual, real-time view of all connections with process names, continuous monitoring, and the ability to block suspicious connections without writing commands.
📖 In This Guide
What Is Netstat?
netstat (Network Statistics) is a command-line utility included with every version of Windows. It shows active TCP/UDP connections, listening ports, and network statistics. To use it, open Command Prompt and type netstat.
Common netstat flags:
netstat -a— show all connections and listening portsnetstat -b— show which executable is making each connection (requires admin)netstat -n— show addresses as numbers (faster, no DNS lookup)netstat -o— show the Process ID (PID) for each connectionnetstat -ano— the most useful combination: all connections, numeric, with PID
The output is a static snapshot. To get continuous updates, you can use netstat -ano 5 to refresh every 5 seconds — but it just dumps new text to the screen each time.
What Is SterJo NetStalker?
SterJo NetStalker is a free, portable network monitoring tool with a graphical interface. It shows the same information as netstat — active connections, ports, remote addresses — but updates in real time, identifies processes by name, and lets you interact with connections directly.
🛡️ SterJo NetStalker
Free • Portable • Real-time network monitoring
- Real-time display of all active TCP/UDP connections
- Shows process name, PID, local and remote addresses, and port
- Color-coded connection states for quick scanning
- Block or terminate suspicious connections from the GUI
- Connection history and logging
- No installation required
Feature Comparison
| Feature | Netstat (Built-in) | SterJo NetStalker |
|---|---|---|
| Graphical interface | ❌ Command line only | ✅ Yes |
| Real-time updates | ⚠️ Manual refresh only | ✅ Continuous live view |
| Process name identification | ⚠️ Via -b flag (admin required) | ✅ Always shown |
| Block connections | ❌ No (use firewall separately) | ✅ Yes, from the interface |
| Connection history/logging | ❌ No | ✅ Yes |
| Scriptable/automatable | ✅ Yes (batch scripts, PowerShell) | ❌ No |
| Works without installation | ✅ Built into Windows | ✅ Portable |
| Usable by non-technical users | ❌ Requires command knowledge | ✅ Yes |
| Export/save results | ⚠️ Via output redirection | ✅ Direct export |
Which Tool for Which Use Case?
Use Netstat When:
- You're working on a Windows Server with no GUI tools available
- You need to pipe output to another command or script
- You want to check a single specific connection quickly
- You're already in a Command Prompt session and don't want to open another application
- You need to monitor connections as part of an automated process
Use SterJo NetStalker When:
- You want a continuous, live view of all connections without re-running commands
- You want to immediately see which program is responsible for each connection by name
- You want to block a suspicious connection from the interface without writing firewall rules
- You're investigating a possible malware infection and want to watch connections evolve over time
- You're not comfortable with the command line
Essential Netstat Commands Reference
If you decide to use netstat, here are the most useful commands:
netstat -ano
Shows all connections with their PID. Cross-reference the PID in Task Manager to identify the process.
netstat -b
Shows the executable responsible for each connection. Requires administrator Command Prompt.
netstat -ano | findstr :443
Filters connections on port 443 (HTTPS). Replace 443 with any port number to filter for that port.
netstat -ano 5
Refreshes the connection list every 5 seconds automatically.
📘 Tip: To find which process owns a PID from netstat output, open Task Manager (Ctrl+Shift+Esc), go to the Details tab, and look for the PID column. Or just use SterJo NetStalker — it shows the process name directly, so you never need to cross-reference.
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Frequently Asked Questions
Is netstat still available in Windows 11?
Yes. Netstat remains available in Windows 11 via Command Prompt and PowerShell. Microsoft has deprecated the -b flag in some contexts, but the core functionality including -ano works normally. SterJo NetStalker provides all the same information with a better interface for non-technical users.
Can SterJo NetStalker detect malware connections?
SterJo NetStalker shows all active connections with the process name responsible for each. This makes it straightforward to spot unexpected programs making network connections — for example, a process you don't recognise connecting to an unfamiliar IP address. It is not an antivirus, but it is a useful visibility tool for spotting suspicious activity.
Does SterJo NetStalker require administrator rights?
SterJo NetStalker runs without administrator rights for basic connection monitoring. Some advanced features like terminating connections may require elevated permissions on certain Windows configurations.
What is the difference between TCP and UDP connections in netstat?
TCP (Transmission Control Protocol) connections are stateful — they have an established connection with a remote server. UDP (User Datagram Protocol) is stateless — data is sent without maintaining a formal connection. Most web traffic, email, and application connections use TCP. DNS lookups and some streaming media use UDP. Both appear in netstat and SterJo NetStalker output.
Can I use both tools together?
Yes. A common workflow is to run SterJo NetStalker for continuous monitoring and use netstat for quick spot-checks in an already-open Command Prompt. They complement each other well — NetStalker for ongoing visibility, netstat for scripted checks.
The Right Tool for Your Situation
For most Windows users, SterJo NetStalker is the more practical choice — it requires no command knowledge, updates in real time, and shows you everything at a glance. Netstat remains the better option for scripting, automation, and server environments.
If you're investigating unusual network activity or just want to see what's connecting to the internet on your PC, NetStalker gives you the complete picture immediately.
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💡 Quick Tip
Run netstat -ano | findstr ESTABLISHED to see only active established connections — filtering out listening ports makes the output much easier to read.