Network IP Scanner - Find out what’s on your network (Updated Jul 2026)


Description:
Network IP Scanner sweeps a /24 subnet and builds a detailed inventory of every device that responds. It fills in the subnet for the network you are on automatically, then pings all 254 addresses in parallel and, for each device it finds, gathers the IP address, reverse-DNS host name, MAC address and hardware vendor, round-trip time and TTL, and the open ports (named by service, such as HTTP, HTTPS, SSH, RDP or SMB). From that information it makes an educated guess at the operating system and the device type — router or switch, printer, database server, Windows PC, Linux host, web device and more — and colour-codes each row to match. A live progress bar and status line track the sweep, a filter box narrows the list as you type, and the whole table can be exported to a text file, CSV, or a self-contained HTML report.


How to use:


1. Check the subnet. The Subnet box is pre-filled with the /24 prefix for your current network (for example 192.168.1). Leave it as is, or type a different prefix — it accepts forms like 192.168.1, 192.168.1.0 or 192.168.1.0/24.

2. Scan. Click Scan Network. The progress bar and status line show which address is being checked, how many devices have responded, and the elapsed time; Devices found updates as they appear. Click Cancel at any time to stop.

3. Read the results. Each device appears as a row showing its IP Address, Host Name, MAC Address, Vendor, RTT (ms), TTL, Open Ports, OS Guess, Device Type, Ping Status, address family, scan date/time, and a Notes summary. Rows are colour-coded by device type so routers, printers, servers and PCs are easy to pick out.

4. Filter the list. Type into the Filter box to instantly narrow the table — it matches on IP address, host name, MAC, vendor, device type, OS guess or open ports. Clear the box to show everything again.

5. Act on a device (right-click). Right-click any row for quick actions: copy the IP address, host name, MAC address or the whole row, open the device in your browser over HTTP or HTTPS, or ping it in a Command Prompt window.

6. Export or clear. Use the export buttons to save the results to a Text file, CSV, or a colour-coded HTML report, or click Clear to empty the list and start again.

What You Can Do With This Program

Potential Uses for Network IP Scanner Tool:

• Network Inventory and Mapping:
  • Quickly discover and list all active devices (computers, printers, smart devices, routers, and so on) on your home or small office network, complete with IP address, host name, MAC address and hardware vendor.
  • Use the OS guess and device-type columns to understand the make-up of your network at a glance, and export the whole inventory for your records.
  
  
• Troubleshooting Network Connectivity:
  • Confirm that a new device (a smart TV, network printer or NAS drive, for example) has joined the network and picked up an IP address, and check its round-trip time and TTL.
  • Diagnose why a device isn’t reachable by checking whether it responds and what ports it has open.
  
  
• Basic Network Security Review:
  • Spot unknown or unexpected devices connected to your network, using the vendor and device-type information to work out what each one is.
  • Scan periodically to confirm that only expected devices are present, and export an HTML report as a point-in-time record.
  
  
• Finding Open Ports and Services:
  • See at a glance which common ports are open on each device — named by service such as HTTP, HTTPS, SSH, RDP, SMB or MySQL — to understand what each host is offering.
  
  
• Device Management and Configuration:
  • Find the IP address of network-attached devices like printers, routers or smart-home hubs, then right-click to open their web interface directly in your browser.
  • Locate a specific device by host name or MAC address using the filter box.
  
  
• Personal Home Network Management:
  • A simple way to see what is connected to your Wi-Fi, helpful for identifying devices used by family members or guests, or ones that were forgotten but are still connected.
  
  
• Pre-Deployment Checks:
  • Before adding new equipment or services, run a quick scan to see which IP addresses are already in use and avoid conflicts.