All-in-one network monitoring
software PRTG


  • PRTG monitors every aspect
    of your network

  • PING, traffic, bandwidth, devices,
    availability, and more

  • Locate and avoid
    network errors proactively

Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.






Here's what Network Monitoring
looks like in PRTG


Manage your network on a higher level with PRTG

PRTG is used in a variety of situations. Often it is used as the overall network monitoring. But one also needs a concrete network analysis tool as well as help
with detailed network diagnostics.  How do we evaluate these fields in general - and what does PRTG do for them? An overview:


Network Monitoring

Network monitoring

If you are in search of a network monitoring tool, then you probably want one that features a comprehensive overview. You'll want to monitor the whole of your IT infrastructure. It starts with switches, routers, and the firewall, and includes workstations, servers, and any number of preconfigured devices, such as VMware. As an administrator, you need a centralized tool (see above) to monitor your entire IT infrastructure or network elements. And you need to be alerted of emergencies immediately so you can get on with your work with peace of mind. 

PRTG is the tool for you

PRTG is a tool that features centralized monitoring. The dashboard is the central interface upon which everything is summarized, providing the administrator with an overview at all times.

Threshold values may be customized according to your needs. PRTG thus notifies you before problems arise. An example: If the administrator is informed well in advance that a hard drive is running at full capacity, then he can react before his colleagues have a chance to complain. The emergency situation does not even occur. In short: The administrator saves both time and energy.

Network analysis

Network analysis

If you are in search of a network analysis tool, then you probably already have a specific problem you wish to analyze. An example: As an administrator, you wish to perform an analysis of the network to determine the extent at which lines are utilized on certain business days. Or the network load continues to increase due to additional staff, and you would like to figure out ahead of time when you will need to expand the network's capacities.

PRTG is the tool for you

With over 250 sensors and ready-made device templates, PRTG offers an extensive range of possibilities for analyzing your own network e.g. bandwidth monitoring. For administrators, it is a strategic planning tool - and therefore one that strengthens their role in companies and organizations. Administrators can proactively tackle important IT issues and provide documentation supported by facts and figures.

Network diagnostics

Network diagnostics

For network diagnostics, professionals are in high demand. Here it is often a matter of incident management. In other words: the house is on fire. Administrators analyze certain elements in detail. Network diagnostics is frequently driven by important problems whose causes are unknown. An example: The online store is too slow - but why?

PRTG is the tool for you

Thanks to its comprehensive monitoring, PRTG facilitates complex searches. Administrators can already safely say in advance which segments are not the problem. You'll be able to localize possible causes more quickly - instead of looking for the needle in the haystack. IT managers save a lot of time and can fix the problem faster.  PRTG also provides important fundamental structural information.


“Hey Dirk, what do you think about network monitoring?”

“Without network monitoring, it can easily take several hours to locate a network error, such as identifying a router which isn't working properly. Costs can quickly pile up due to unused man days. With a monitoring service, the amount of downtime can be minimized and in many cases even proactively eliminated. With our PRTG monitoring tool, we hope to simplify the job of administrators so they can go about their work efficiently and with less stress.”

Dirk Paessler, founder of Paessler AG


If you are in one of these situations, try PRTG


PRTG Network Monitor

There are three classic cases in which administrators come across our PRTG monitoring tool:

Network monitoring Tool new

Case 1:
You are looking for a new tool

Many administrators are yet to own a network monitoring tool. What often happens is that networks gradually begin to expand but administrators have other things to worry about which are more pressing. The important yet rarely urgent issue of network monitoring is therefore pushed into the background. Until suddenly a problem arises - such as a massive system failure - sparking a time-consuming search for the bug. Usually, a mad dash to find freeware or free tools begins.

The advantages of PRTG: Getting started is easy and risk-free

PRTG provides for flexibility when getting started. The trial version is for free. 100 sensors stay free forever. Administrators can therefore get to know our network monitoring tool without having to pay or worrying about a contract coming to an end. If you wish to work with more sensors, it's a cinch to supplement PRTG. PRTG is installed in just two minutes and customized in a few short hours.

Change network monitoring software

Case 2:
You are looking for a different tool

As administrators, you already have a network monitoring tool. But many tools on the market are complex and difficult to maintain. In no time at all, the tool is no longer up-to-date, because new network elements are no longer incorporated into it. Sometimes changes in personnel occur - and there is consequently nobody on staff who knows how to get the tool working quickly.

The advantages of PRTG: A faster and easier transition 

The delightful intuitive network monitoring tool PRTG features a number of preconfigurations, including nearly 250 sensors and ready-made device templates. In addition, an Auto Discovery feature automatically searches the network and installs sensors. A migration is therefore possible in a matter of a few hours. The transition is easy and can take place a lot faster than getting the hang of the previous, cumbersome tool. Alert features are included, and licenses are modifiable as the situation requires.

Centralized Network Monitoring Dashboard

Case 3:
You are looking for a centralized tool

As administrators, you already have tools for your network monitoring, analysis, and diagnostics. Your problem: you use a mishmash of several distinct tools. As administrators, you have to learn the ropes of many different tools, all of which have their own strengths and weaknesses. And you need to keep an eye on - and maintain - all of the tools at the same time. This costs time and energy.

The advantages of PRTG: Finally one clear overview

PRTG is a centralized tool for the entire network for which an administrator is responsible. All it takes is a quick look at its dashboard or app. Administrators who use PRTG say they finally have some peace of mind.  Gone are the days of always having a guilty conscience or feeling uneasy because information is missing.


Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.


Network monitoring reviews:
What administrators and industry experts say about PRTG 

Our network monitoring tool is often reviewed and evaluated by administrators, industry magazines, comparison sites, and technology specialists.
We’re always open to feedback. Every day, we try to make our software a little bit better.

Reviews: What customers say about PRTG

PRTG is used by over 300,000 administrators worldwide. On Trustpilot, consumers give us four out of five stars. PRTG is often praised for allowing users to proactively monitor their networks and intervene quickly before problems arise. Users also enjoy its preconfigured sensors, built-in alarm, and efficient technical support. What’s more, our knowledge base contains answers to thousands of different questions.

Reviews: What experts say about PRTG

Network monitoring tools are often evaluated by IT magazines (such as Funkschau and IP Insider) and compared by IT specialists like Gartner. We’ve compiled some reviews for you here. You’ll also find more and more comparison sites putting network monitoring tools to the test. However, you should be careful with such sites as they are not always unbiased.

Our competitors

Which is better: PRTG, Nagios, or SolarWinds? What are the pros and cons of each provider, and which features can you expect? We’ve summarized numerous comparisons and customer reviews. Our hope is that admins will choose PRTG after determining that it really is the right tool for them.


Trusted by 300,000 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.”

Read more reviews

“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.”

Read more reviews

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

Read more reviews


PRTG measures network speed


iWhat is a sensor?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)

For administrators, network speed is a key issue which garners a great deal of their attention. It is no surprise that the phone begins to ring as soon as the connection goes down. Colleagues, customers, and partners cannot work with slow service.

PRTG offers pre-customized sensors for measuring every aspect of network speed.

Network speed can be considered from three standpoints - network monitoring, network analysis, and network diagnostics: 

  • Using a network monitoring tool, an administrator seeks to learn, for example, how much traffic passes through a certain port. Sensor tip: The "Port sensor."
  • With network analysis, ports from several routers are analyzed and the entire route is considered. Sensor tip: "similar sensors," which analyze similarities.
  • Network diagnostics, on the other hand, is all about the detail. An example of network diagnostics involves the analysis of specific data packets to determine if network speed is paralyzed by certain large packets. Sensor tip: The "Packet Sniffer sensor," for gathering data streams.

Enterprise monitoring software:
For a smooth-running network

Advantages galore

Are you responsible for a large, worldwide IT network? If so, you may be having a hard time finding the right enterprise network monitoring software. The case for PRTG: our tool consolidates your monitoring data, is easy to customize, and can be used for distributed networks. It’s not for nothing that more and more large companies are opting for our software.

Convenient licenses

More than 300,000 admins around the world put their trust in PRTG. PRTG is used by small firms with just a few employees, medium-sized companies, and huge international corporations. Our upgradeable licenses, determined by the total number of required sensors, makes PRTG a perfect fit for everyone. The admins of large networks are invited to take advantage of our personalized enterprise solution to gain access to 10,000+ sensors and optimally monitor more than 1,000 devices. Our license PRTG Enterprise comes equipped with an unlimited number of sensors and allows for installation on an unlimited number of servers.


Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.



Monitoring tools:
Several isolated tools vs. one centralized tool

Several isolated tools

Several isolated tools

Many companies and organizations use a variety of different monitoring tools. When a problem arises, they simply reach for the most suitable tool. Other admins search for errors manually, such as by running ping, traceroute, ipconfig, or netstat commands in the Windows command line. As a network grows and reachability/availability becomes more of an issue, sysadmins are increasingly likely to want to merge their many monitoring tools into one.

One centralized tool

One centralized tool

PRTG is centralized software that is often used to replace several small, isolated monitoring tools. The advantage: all information – hardware, applications, traffic, virtual environments, and more – is consolidated and clearly displayed in one centralized tool. Sysadmins and IT teams therefore enjoy a constant overview of their network. And if errors occur, they’re notified promptly and can take action at once. By the way, we also offer a number of free tools to help you optimize your monitoring.



Notification system:
Be alerted quickly





PRTG features a variety of alert types: E-mail, SMS, Pager, Apps, running an external application, etc. You can specify when and how each person is to be informed about network issues. To do so, you can add contacts and edit, delete, or pause your notifications at any time.




The notification system is built into the monitoring software and is available at no extra charge. Because of its integrated quality, configuring the alert feature is done in just a few clicks.




PRTG won't wait to let you know if "VMware is on fire." You define your own thresholds. If these are crossed, you'll receive a corresponding notification. This means you can intervene promptly before clients or coworkers are aware of any problems. 




Another 5 good reasons using PRTG for Network monitoring

You are surely faced with the task of comparing the various tools on the market. A tool's features and price play important roles in this process. Many administrators start by looking for network monitoring tool freeware.

Here are five reasons why PRTG is also a good choice when it comes to price:

Reason 1: Free Trial

PRTG offers a free trial version. In this way, administrators can get acquainted with PRTG without having to spend any money.

Reason 2: Flexible licenses

Licenses are extremely easy to modify in the event your overall network or infrastructure grows. Your monitoring tool also effectively adapts to the growth of your company. It is a long-term solution. More on our licenses and prices.

Reason 3: Best reviews 

PRTG has performed extremely well in countless tests. We are almost always amongst the frontrunners. German to the core, we only offer the very best in engineering quality. And we work hard every day to improve our product. Read here how PRTG has performed in tests

Reason 4: Cost savings

Globally, IT system failures cost companies several billions of dollars. Even in medium-sized European companies, IT system failures incur costs amounting to several hundreds of thousands of euros. Save money with PRTG! Our customers report they have improved their network management and reliability significantly thanks to PRTG.  Read more in our ROI white paper.

Reason 5: 300,000 administrators 

Whether in the USA, Europe, or Asia: PRTG is growing year after year and is since used worldwide by more than 300,000 administrators. Read our case studies to find out which companies and organizations rely on our services.


“Our network engineers really love PRTG, because of its customization”

John Krull, CTO, Oakland Unified School District, USA


Your network at a glance

PRTG can be started within minutes and it's compatible with many mobile devices.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.


PRTG monitors these vendors and applications, and more, in one view!



Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.


PRTG simplifies your day

Our monitoring software works for you and promptly notifies you of potential issues.
It frees you to concentrate on your day-to-day tasks with peace of mind.


PRTG saves time

With PRTG, you get one central monitoring tool for your servers and entire network. Enjoy a quick overview of your whole infrastructure via our dashboard and app.

PRTG saves worry

Customizing PRTG is a breeze. Getting started or switching from another network monitoring tool is easy thanks to the PRTG auto-discovery and pre-configured device templates.

PRTG saves money

80% of our customers report substantial or even exceptional cost savings in the area of network monitoring. The experience shows that the costs for licenses have paid for themselves within a matter of weeks.



Also interesting:

Packet Capture: PRTG analyzes data packets and displays the data packet loss rate. In the event a critical value is exceeded, you’ll automatically receive an alert.

Flow Monitoring: Get a holistic view of your network, keep an eye on your network traffic and what your bandwidth is being used for. PRTG supports all important Flow protocols like NetFlow, sFlow, jFlow, and IPFIX.

LAN Monitoring: Whether LAN, WAN, or distributed networks: With PRTG, you get a constant overview of your entire network. The LAN Monitoring page provides information on the five pillars upon which this monitoring rests.


PRTG: The swiss army knife for sys admins

Adapt PRTG individually and dynamically to your needs relying on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems
  • New REST API Sensor: Monitor almost everything that provides XML or JSON


German quality

Free Download
  • Unlimited version of PRTG for 30 days
  • After 30 days, PRTG reverts to a free version
  • Or, you can upgrade to a paid license anytime


Administrators must compare monitoring tools or search for a free one. There are several suppliers on the market.

PRTG comes with a full range of advantages:

1. Free trial version: PRTG is available in a free trial version. Use this version to get a feel for our network monitoring tool with no risk whatsoever.

2. Over 300,000 administrators: whether in large or small businesses, authorities, colleges or administrations - all around the world, more than 300,000 administrators put their trust in our network monitoring tool, and can therefore also monitor their bandwidth. Read our case studies here.

3. Support: do you have a question? We respond in a jiffy! You can already access a great deal of information online by consulting our FAQs, manuals, videos, webcasts, or knowledge base. You can of course also send us a message. We'll do our best to get back to you within 24 hours on business days.

PRTG – your network monitoring tool

PRTG is the Paessler AG all-in-one network monitoring tool. Our software is used by more than 300,000 administrators worldwide, whether it be to monitor their hardware- and server performance , their virtual environments, or the accessibility of their websites. Use PRTG for database monitoring or SQL monitoring.  PRTG is a one fits all network analyzer tool.

Save time, worry, and money. PRTG is configured in a matter of minutes. The trial version is offered free of charge. And you can upgrade whenever you like.



Network Monitoring Software - Version (November 24th, 2020)


Download for Windows and hosted version 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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