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Get valuable network insights with
the packet analyzer PRTG


  • icon check white 2
    Analyze network traffic and
    data packets
  • icon check white 2
    Filter packets by IP address, protocols, and data type
  • icon check white 2
    Ensure high security and
    optimal performance


Free Download

Unlimited use of PRTG for 30 days. After 30 days PRTG reverts to the freeware edition.
You can upgrade to a paid license at any time.







packet sniffing


What is a Packet Analyzer?

A packet analyzer (also known as a packet sniffer) is a computer program or piece of computer hardware that can intercepts and logs traffic that goes over a digital network. A packet analyzer is is composed of two main parts. First, a network adapter that connects the sniffer to the existing network. Second, software that provides a way to log, see, or analyze the data collected by the device.

 iWhat is packet sniffing?

Packet sniffing is the practice of gathering, collecting, and logging some or all packets that pass through a computer network, regardless of how the packet is addressed.
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How does PRTG packet analyzer work?

PRTG uses its own Packet Sniffer sensors to detect issues with the data that flows across your network, and NetFlow sensors for Cisco hardware. It does this by monitoring data packet headers, identifying data types, and collecting this data. This data collection gives you a powerful source of information that allows you to identify multiple traffic types and their transfer rates.


Trusted by 500,000 users and recognized
by industry analysts as a leader


“Fantastic network and infrastructure monitoring solution that is easy to deploy and easier still to use. Simply the best available.”

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“Software is absolutely perfect, Support is superior. Meets all needs and requirements, this is a must have solution if you are needing any form of monitoring.”

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“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”

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Free Download

Unlimited use of PRTG for 30 days. After 30 days PRTG reverts to the freeware edition.
You can upgrade to a paid license at any time.



Data types that PRTG detects and displays


  • Chat (Internet Relay Chat (IRC), AOL Instant Messenger (AIM))
  • Citrix
  • File Transfer Protocol (FTP)/Peer-to-Peer (P2P) (file transfer)
  • Infrastructure (network services: Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS), Ident, Internet Control Message Protocol (ICMP), Simple Network Management Protocol (SNMP))
  • Mail (mail traffic: Internet Message Access Protocol (IMAP), Post Office Protocol version 3 (POP3), Simple Mail Transfer Protocol (SMTP))
  • NetBIOS
  • Remote control (Remote Desktop Protocol (RDP), Secure Shell (SSH), Telnet, Virtual Network Computing (VNC))
  • WWW (web traffic: HTTP, HTTPS)

Inspect your network traffic and easily share your data

Use the data from PRTG to inspect your data

PRTG is a comprehensive monitoring and analysis tool set. PRTG has SNMP, sFlow, and jFlow for added data collection capabilities. Thanks to these built-in technologies, PRTG can classify and sort this data by IP address, protocol types, and user-specified custom parameters.

Share your findings with common report formats

Once your query is complete, the analyzed results are displayed in a variety of easy-to-read graphs and tables. These reports can be generated almost instantly for near real-time network usage reporting. Fully configured reports are available in HTML, Excel, TIF, RTF, or PDF formats.

The internal database of PRTG allows for fast and efficient storage of collected data. Optional ZIP file data backup is also offered as well as purging of old data. This keeps your system running smoothly without wasting disk space.

Easy to install, easy to use


PRTG Network Monitor can be installed in just a few clicks and it is fully compatible with most switches, routers, firewalls, and other network devices. Offering both a free basic edition and expanded commercial editions, PRTG is the right solution for all your bandwidth monitoring  and analysis needs. All licenses of the PRTG packet analyzer allow you to use an unlimited number of NetFlow / sFlow sensors.


If you need to scrutinize your organization’s data flows, then our comprehensive
network monitoring solution PRTG Network Monitor is the right software for you.
PRTG includes a powerful packet analyzer, making the task of controlling your
bandwidth usage
much easier and more effective.



PRTG in a nutshell


PRTG monitors your entire IT infrastructure

Traffic, packets, applications, bandwidth, cloud services, databases, virtual environments, uptime, ports, IPs, hardware, security, web services, disk usage, physical environments, IoT devices and almost everything you can imagine.

PRTG supports most technologies

SNMP (all versions), Flow technologies (i.e. NetFlow, jFlow, sFlow), SSH, WMI, Ping, and SQL. Powerful API (Python, EXE, DLL, PowerShell, VB, Batch Scripting, REST) to integrate everything else. See all PRTG features

PRTG is ready for every platform

Download for Windows and hosted version
available. Monitoring via AJAX Web Interface or Desktop Client.



Still not convinced?



More than 500,000 sysadmins love PRTG

PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

Still not convinced?


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.




Free Download



Try PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free. Start now with your 30-day trial.




Network Monitoring Software - Version (June 22nd, 2022)


Download for Windows and cloud-based version PRTG Hosted Monitor available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

Supported Vendors & Applications

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