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Open Source RMM Software for MSPs: The Pros & Cons

by NinjaOne
reviewed by Lauren Ballejos, IT Editorial Expert
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Instant Summary

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Key Points

  • Assess Technical Prerequisites Before Adoption
    • Open source RMM tools require in-house development, scripting, and ongoing maintenance expertise. MSPs must have the technical resources to deploy, customize, and secure the platform.
  • Weigh Cost Savings Against Operational Overhead
    • While open source RMM software eliminates licensing fees, it increases internal costs related to setup, troubleshooting, updates, and long-term support.
  • Understand Feature and Automation Limitations
    • Most open source RMM solutions lack advanced automation, patch management, reporting, and integrations found in commercial RMM platforms, impacting technician efficiency.
  • Evaluate Support, Security, and Reliability Risks
    • Community-based support offers no SLAs or guaranteed response times, which can introduce service delivery, compliance, and security risks for MSPs.
  • Use Open Source RMM Strategically, Not as a Growth Platform
    • Best suited for testing, learning, or short-term use cases; MSPs focused on scalability and profitability typically benefit more from fully supported commercial RMM solutions.

Managed service providers (MSPs) are always looking for ways to save money and raise profits. And increasingly, many are looking at their technology stack and asking whether there are free RMM tools that could lower their vendor bill. One popular type of software among some MSPs is open source RMM software. But while these alternatives can benefit some, there are trade-offs to keep in mind.

Benefits of open source MSP software

Customization

For skilled developers, an open source RMM can deliver endless customization. It can also allow an MSP’s service offering to evolve organically. This involves adding individual features and capabilities as the need arises or as part of a growth plan.

The level of control you can exert over an open source remote monitoring and management tool is therefore very appealing and ideal for MSPs perhaps just starting out with strong scripting or software development capabilities. For those with the skill, building your own, custom software could be a great cost-saving long-term strategy.

Contingency

Open source MSP software can also serve as a stop-gap measure in the event of an outage. There are many open source RMM solutions available that offer some basic features. And considering it’s free, it might be worth including it as part of a contingency plan.

NinjaOne is the Top-Rated RMM solution on G2, trusted by MSPs for its comprehensive features.

Drawbacks of open source MSP software

Resource demands

But of course, open source MSP software might not make sense for all MSPs. Especially those without the resource to hire development help or grow more quickly. Maintaining open source projects in-house takes considerable time and effort. And even community-led projects may have a small number of developers devoting only a small portion of their time to the project. This means your MSP may have to wait longer for new features and updates that could be making you money.

Lack of features

Lack of features is a significant hurdle MSPs should be aware of if they’re considering free MSP software. Software companies employ teams of developers whose job is to take user feedback. They also implement new features that have been extensively tested to work flawlessly. In fact, in the last year, NinjaOne’s development team completed seven of the top 10 user-requested features. Most open source project maintainers are unpaid. Working in their spare-time, and are simply unable to match the release cadence of established MSP software companies.

Insufficient customer support

Beyond a lack of features, open source MSP software may lack a customer support team. This makes it hard to handle any problems that come up or offer training assistance to master the tool. As an MSP, you need a way to escalate problems and find a solution as fast as possible. When using an open source RMM, for example, there’s no guarantee you’ll be able to quickly solve the problem. And that hurts your reputation and the customer’s satisfaction.

Lack of automation

Another important consideration is how the software can increase your MSPs profitability. This is especially true with RMMs. This allows technicians to efficiently manage hundreds of endpoints. This helps to reduce labor costs while maximizing profit from each managed services agreement (MSA).

RMMs that excel at automation can free up time and resources. And, it’s important to remember that just if a task takes less time, you shouldn’t be billing the customer based on the value of that service.

For example, patch management can be a time-consuming and burdensome task. However, an RMM can easily automate this extremely important step in basic IT. In this example, the value of patch management doesn’t change. It’s just become less costly for you to get it done and included as a set of services provided.

Best open source RMM tools

Despite its shortcomings, open source RMM that allows you to build your own software is an effective option. There are plenty of open source RMM tools out there for Windows, Mac, and Linux operating systems, such as:

Best open source RMM for Windows: TacticalRMM

TacticalRMM is a free, open source remote monitoring and management tool that uses Windows operating systems. It’s easy to use and offers many basic RMM features, such as remote access, inventory management, patching, and more.

Best open source RMM for MacOS: ITarian

ITarian is a free, open source RMM that works well with Mac operating systems. Although it has all the basic RMM features. This includes inventory management, patching & remediation management, network monitoring, and more. Plus, it is known for its excellent endpoint management.

Best open source RMM for Linux: Mesh Commander

Mesh Commander, also called MeshCmd, is a free and open source RMM that runs on both Windows and Linux operating systems. This RMM provides real-time alerting, remote access, patching, asset management, backup, and more.

Free vs commercial RMM software solutions

Choosing an RMM with a great feature set native to the platform means you’ll be able to generate more revenue faster. NinjaOne has been named the #1 RMM software by G2. And, it is listed as a leader in IT management software by SourceForge, among other accolades from user-review sites like Captera and GetApp.

In G2’s latest report, they found that NinjaOne users were able to master the platform in just a few weeks. Plus, users reached a return on their investment faster than any other RMM available. If you’re thinking about using a free RMM, strongly consider how it will generate revenue for your business. And why it might be better to go with a more feature-rich, leading alternative.

Using MSP software to scale your business

Ultimately, open source MSP software can work for the business but it comes with trade-offs that make the tools not entirely free. If you’re skilled in software development, taking your open source projects in-house can be a great way to build a tool that’s perfectly customized for your needs.

But that may mean you have to wait longer for features if you can’t hire scores of developers. Tools like open source RMM software can serve as a great entry point for aspiring MSPs looking to get their feet wet and learn the basics. To learn more, you can check out our RMM FAQ page.

Ultimately, there will come a time when you want your business to scale and that’s when professionally developed tools can end up saving and generating money.

Get started with a free trial of NinjaOne today.

FAQs

Open source RMM software is a free, community-maintained remote monitoring and management tool that allows MSPs to monitor endpoints, manage devices, and perform basic IT tasks without commercial licensing fees.

Open source RMM can work for MSPs with strong technical expertise and limited budgets, but it often lacks automation, support, and scalability needed for long-term MSP growth.

Pros include low cost and high customization; cons include limited features, lack of vendor support, security risks, and higher internal maintenance requirements.

Yes, open source RMM software is typically free to download and use, but MSPs often incur indirect costs for setup, customization, security hardening, and ongoing maintenance.

Small or new MSPs can use open source RMM tools if they have strong technical skills, but limited automation and support can make long-term reliance challenging.

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