Find all active devices on your network. Discover the ip address and available services for each network device. Run a speed test to check your internet connection speed. Ping and Traceroute devices. Query WhoIs and DNS server about domain names ip addresses.

PortScan offers similar and more functionality than the Network Utility on macOS.

Scan multiple ports of a IP address range

Scan Ports

PortScan shows all open ports and additional information like host name, MAC address, HTTP, SMB, FTP, iSCSI, SMTP, SNMP, MySQL and MongoDB services. Up to 100 threads are used for scaning large ip address ranges.

Search for network devices

Search Devices

You can search for UPnP enabled devices, Bonjour services, Netgear router, Synology NAS devices, Buffalo NAS devices, Asus routers, Miracast devices, Epson projectors, Wiz Lights, Samsung printer, HP printer (SLP / Service Location Protocol), MSA network devices, Sierra Monitor network devices, Freecom network devices and IPv6 devices.
So you can find them even if you don’t know the ip address.

Ping devices

Ping Devices

Ping any computer with 3 standard sized ping packets, with 3 different sizes, each 10 times or ping the computer continuously. A graph shows the distribution of response times.

Test your internet speed

Speed Test

Test your internet connection speed by downloading and uploading data to various servers. Also a latency test is included.
Version 1.97 · · 413kb · VirusTotal Report
New: Crash prevented History
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Install using package managers:

winget install --id the-sz.PortScan -e --forcecontent_copy
choco install portscan.portable -y --ignore-checksumcontent_copy

Supported Languages:

English English
French French
German German
Greek Greek
Italian Italian
Portuguese Portuguese
Russian Russian
Simplified Chinese Simplified Chinese
Swedish Swedish
Turkish Turkish
Ukrainian Ukrainian

Supported Operating Systems:

Windows 11 Windows 11
Windows 10 Windows 10
Windows 8 Windows 8
Windows 7 Windows 7
Windows Vista Windows Vista
Windows XP Windows XP
Windows 2000 Windows 2000
Windows Server Windows Server
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Command line options:

/p or portable.dat or PortScan.ini file is in same folder, use portable version, save settings in PortScan.ini
/s use smaller font and allow window to be resized to every size
/u <language code> Change user interface language to specified 2 letter language code
PortScan.ini can contain ‘Language=language code’ too
/ScanStart <IP, Server Name or List> set port scan start, if string starts with @, this file will be read line by line
/ScanEnd <IP> set port scan end, use " " to set empty end
/ScanAutoStart automatically start port scan
/SearchAutoStart automatically start search
/AutoSave <File> automatically save results
/AutoExit automatically exit after scan/search


Run a port scan and search for devices

Download Mirrors: