Free server monitoring with PRTG


  • PRTG monitors your servers

  • Monitor server hardware, virtual servers, and applications

  • 100 free sensors for life

  • One centralized dashboard for all your servers

  • Alarm feature included


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.






Why should I use a tool to monitor my servers?

Detect server hardware malfunctions at once

CPU errors, memory overloads, faulty network seems like something is always going wrong with server hardware. In reality, this is a normal part of wear and tear, especially when your IT infrastructure grows and incorporates more and more devices which don't always stem from the same manufacturer. With PRTG, you’re sure to be covered. It comes with preconfigured sensors for all the most popular server hardware and manufacturers.

Quickly eliminate server bottlenecks

Even brief spikes can generate peak loads in the system. And this can cause any part of the network to go haywire. Most of the time, it’s your switches, routers, or servers that take the hit. Thanks to the PRTG dashboard, you’ll immediately see if a bottleneck appears. What’s more, you can configure the PRTG notification system to have alerts displayed on the screen or sent to a smartphone or other device. As a result, you can identify problems in seconds and take all the necessary actions to fix them.

Keep an eye on your virtual servers

Many companies use both physical and virtual servers. It’s not enough to only monitor physical servers. Virtual servers – and their host hardware – must also be monitored. PRTG comes with preconfigured sensors for VMware, Citrix, HyperV, and more.



Case study: How PRTG customers use our server monitoring tool

“One of our most important tasks involves the daily logging of customer transaction counting protocols in SQL databases. Sometimes this integration fails. PRTG comes with SQL sensors that warn us if an integration is about to fail. It also shows us how much memory is available on our local servers. As a result, we always know how much data can be copied there. PRTG is the fastest and easiest way to access this vital information.”

Olivier de La Pommeraye, esri France.

To the case study


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



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.


Get started with free PRTG monitoring today for
a quick and easy overview of all your servers.

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!



Why should I try the free version of PRTG?

Get a feel for our software with no strings attached

Get a feel for our software with no strings attached

There are many different server monitoring tools on the market. Some of these tools are totally free but extremely difficult to configure. Others come with only a few features. Prices – and performance – run the gamut. PRTG is available as freeware, allowing you to test the software at your own convenience. Try all the sensors and features for 30 full days. After the trial period, you can continue to use the full range of features and up to 100 sensors for as long as you like. If you stick with the freeware version, you can monitor around 10 network devices.

Keep an eye on all your servers

Keep an eye on all your servers

What makes PRTG unique? Our software keeps an eye on all your servers. Monitor the mail, database, web, and virtual servers of manufacturers such as Dell, HP, and IBM. All data is displayed in one centralized monitoring environment. As a result, you can go about your daily work with total peace of mind. With PRTG, a quick glance is all it takes to confirm your systems and services are up and running – and not causing any problems.

Custom upgrades

Custom upgrades

You'll get 100 free sensors to start. If this is enough, then you can take advantage of free server monitoring for as long as you like. If you decide you’d like to monitor your entire IT infrastructure, simply choose from one of our custom licenses. Each license comes with a different number of sensors. To determine which license is best for you, here’s a simple rule of thumb: on average, you’ll need about 10 sensors per device.


Server monitoring tools put to the test:
Prices, features, and more

These days, system administrators are spoiled for choice. The market is literally overflowing with
monitoring tools. Each of these tools has its pros and cons. We’ve compared some of them with PRTG.



Nagios is open-source software for network monitoring. Many of our customers used Nagios before switching to PRTG. On the surface, Nagios is a free open-source tool. But compared to PRTG, it is much more difficult to configure. PRTG also beats Nagios when it comes to the reliability and presentation of data. Discover our in-depth comparison here: Nagios vs. PRTG.


Like PRTG, SolarWinds is proprietary network monitoring software that comes with server monitoring. SolarWinds often vies with PRTG for the top spot in rankings. The advantage of PRTG: Our software is all-inclusive. Among other things, it also monitors Cisco devices. For a detailed comparison, see: SolarWinds vs. PRTG.


Zabbix is yet another free open-source network monitoring tool. When deciding between Zabbix and PRTG, you’ll once again want to determine which tool is more reliable, easier to configure, and easier to use. Find our comparison here: Zabbix vs. PRTG.


Practical tip: “Hey Heather, why should I monitor the availability of my servers?”

“If your servers are available, then that means your services usually are too. By providing for end-to-end server monitoring, PRTG Network Monitor increases the uptime and reliability of your business. PRTG is fantastic. It’s an all-in-one professional server availability monitoring tool that monitors everything from your hardware platform to critical services and the business processes that run on your Windows servers.”

Heather Pacan is a lead systems engineer at Paessler AG



Server monitoring is our passion.
And we always let you try it for free.

Server health monitoring

PRTG monitors every key parameter of your servers, including hardware, applications, and much more. It gives you full control of your server park and helps you optimize your time. More on server health monitoring.

Web server monitoring

PRTG monitors your web servers and website to ensure your company is always available online. Our sensors keep a constant eye on the availability, traffic, and processes of your website. More on web server monitoring.

Server availability

Server availability is a crucial consideration for every company. One small glitch can trigger a flood of complaints and overwhelm your IT helpline. Keep your IT infrastructure up and running with PRTG.


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


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.



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


Made in Germany: The PRTG Network Monitoring Tool is the fruit of an engaged team. The company was founded by Dirk Paessler. The Paessler AG headquarters are located in the city of Nuremberg, in the heart of Germany. We combine typical German virtues such as high quality standards, industriousness, and commitment with international, cosmopolitan flair. Read more about our firm here. By the way: We are regularly looking for new recruits.

Case Studies: Airports, utility companies, banks, colleges, hospitals: PRTG is present in every industry. For each of our customers, business and organizational processes depend on the proper functioning of the network infrastructure. The PRTG customer satisfaction is close to 100%. Read in our case studies how our customers use PRTG.

Product tests: It goes without saying that we are convinced by the quality of PRTG. But what about the others? PRTG has always performed extremely well in tests. PRTG user “LanLine” sums it up best: “PRTG was already good several years ago, and has gotten better from version to version ever since.” Such has been our steadfast and sincere goal. Read more about monitoring software product tests and comparisons here.

Support: Our support team works hard every day to help customers solve their monitoring problems. Our goal is to resolve all inquiries within 24 hours (on business days). We've drafted a comprehensive manual and built up an extensive knowledge base featuring videos, webinars, and FAQs. All support, of course, is also included!

Getting started is easy: The trial version is free, which means you can try our monitoring tool risk-free. To switch to another version of PRTG, simply search for an appropriate license. You can upgrade any time you like.




Network Monitoring Software - Version (October 20th, 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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