Jan J.

Managing Director

Small-Business (50 or fewer emp.)

10/28/2019

"Awesome tool - I can't live without it as a CF developer!"

5/5

What do you like best about FusionReactor APM?

FusionReactor gives me 100% useful insights into individual web requests, very detailed, can't live without it. Also works great for local development, not only to monitor and troubleshoot production servers. Finding performance issues is so much easier when using FusionReactor.

Typically and especially in complex web applications (think MVC, layered architecture, etc.) sometimes those nasty db-query-in-loop are tough to find. Easy as pie with FR.

Also very helpful to see the pain-points of your website/app - those slow running requests which no one reported yet. As a developer you can proactively work on performance improvements if checking this list of long-runners on a regular basis.

Using the developer edition locally together with the CommandBox integration is a no-brainer and should be the tool-of-choice for every single CF developer. Intergrals latest addition of all the features of the Ultimate edition to the developer edition is really helpful. I will definitely start playing with the FusionReactor Live Debugger in the future more.

On production servers, the daily/weekly email reports as well as the alerts on long running requests are much appreciated. We would never find out about some of those things if we would not use FR in production. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

The licensing (activating/deactivating) locally sometimes is annoying in some rare specific instances, but that's about it. No real dislike at all. Review collected by and hosted on G2.com.

FusionReactor APM Reviews & Product Details

Introducing FusionReactor Observability with OpsPilot GenAI and OpenTelemetry Integration – the ultimate solution for comprehensive application monitoring and analysis. With this powerful combination of cutting-edge technologies, you'll gain unparalleled insights into your applications' performance, health, and behavior, ensuring optimal performance and enhanced troubleshooting capabilities. FusionReactor Observability serves as your all-in-one observability platform, providing real-time visibility into the inner workings of your applications. It offers a wide range of monitoring capabilities, including advanced profiling, deep code-level diagnostics, and request tracking, allowing you to identify and resolve bottlenecks, errors, and performance issues efficiently. By harnessing the power of OpsPilot GenAI, FusionReactor Observability takes monitoring to the next level with its intelligent anomaly detection and predictive analysis features. Leveraging machine learning algorithms, it learns the normal behavior patterns of your applications and automatically identifies deviations or anomalies, alerting you to potential issues before they impact your users. This proactive approach saves you valuable time and resources by preventing problems before they escalate. Integration with OpenTelemetry further enhances the observability capabilities of FusionReactor. OpenTelemetry provides a standardized and vendor-neutral way to collect, process, and export telemetry data from your applications, regardless of the language or framework used. By leveraging this integration, you can seamlessly ingest data from a wide range of sources, enabling comprehensive end-to-end visibility and analysis across your entire application stack. With FusionReactor Observability's intuitive and user-friendly interface, you can easily navigate through comprehensive dashboards, metrics, and visualizations, allowing you to understand the performance and behavior of your applications at a glance. Gain deep insights into response times, throughput, error rates, and resource utilization, empowering you to optimize your application's performance, scalability, and reliability. Key Features: Real-time application monitoring and analysis. Advanced profiling and deep code-level diagnostics. Intelligent anomaly detection and predictive analysis powered by OpsPilot GenAI. Seamless integration with OpenTelemetry for comprehensive end-to-end visibility. Comprehensive dashboards, metrics, and visualizations for easy analysis. Identification and resolution of bottlenecks, errors, and performance issues. Proactive alerting to prevent issues before they impact users. Improved application performance, scalability, and reliability. With FusionReactor Observability, OpsPilot GenAI, and OpenTelemetry integration, you can take control of your application's performance and ensure a seamless user experience. Stay ahead of potential problems, optimize your application's efficiency, and drive business success with this powerful observability solution.

Product Website

Seller

Intergral

Discussions

FusionReactor APM Community

Languages Supported

English

Product Description

FusionReactor is an Application Performance Monitor for JAVA. No other monitor will help you get to the root of issues faster and make apps more resilient.

Overview by

David Tattersall

Pricing

Pricing provided by FusionReactor APM.

Starter

Starting at $49.00

Per Month

View More Pricing Information

FusionReactor APM Media

Welcome to OpsPilot AI, your ultimate application monitoring solution. With our cutting-edge GPT-4 integration, you can now transform the way you monitor and manage your applications. Understand complex issues and anomalies in your applications in natural language Identify the root cause of p...

FusionReactor APM Demo - Infrastructure monitoring

You can keep your cloud or hybrid environments up to date and optimized with FusionReactor’s SaaS-based infrastructure monitoring, which provides metrics, visualizations, and alerts. FusionReactor helps teams communicate and troubleshoot more effectively by covering a wide range of popular techno...

Using the Metrics Explorer inside FusionReactor allows you to examine all of the metrics FusionReactor has collected from your instances or application.

FusionReactor APM Demo - FRC Application Throughput

For each application being monitored, FusionReactor will automatically break down requests into individual transactions (including automatic framework recognition). Transactions are measured so that you can quickly gauge how much time each transaction is taking in %, on average, which are slow...

Level up your log management game! With FusionReactor, effortlessly access, search, and analyze your applications and infrastructure logs. Supercharge your troubleshooting skills, tackle issues swiftly, and unlock invaluable insights into your system’s behavior.

FusionReactor APM Demo - Distributed tracing

FusionReactor’s debugger contains a fully featured, low overhead, ‘IDE’ Style debugging browser console (see below) as well as the ability to capture stack trace and variable context state at any point where you may set a breakpoint in your code. No need to write variables out to logs – just run ...

OpsPilot isn’t just another monitoring tool — it’s your intelligent AI assistant for ColdFusion, Lucee, and Java applications. Instead of overwhelming you with raw data and endless dashboards, OpsPilot provides actionable insights.

Unleash the power of robust metrics to monitor, analyze, and optimize your applications and systems. Make data-driven decisions, boost performance, and minimize downtime.

Supercharge your monitoring across languages and frameworks with FusionReactor and the OTel agent. By combining FusionReactor's powerful diagnostics and features with the rich telemetry data provided by OTel.

Discover the power of enhanced observability with FusionReactor's Anomaly Detection, now integrated into our platform. This feature is a game-changer in the way you monitor and manage your services, leveraging the robust RED framework.

With our tracing capabilities, you can dive deep into your application’s performance and identify bottlenecks, latency issues, and other anomalies.

Official Downloads

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FusionReactor Overview - Essential Monitoring for Developers

Advancing OpenSource observability with AI integration

G2 reviews are authentic and verified.

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René H.

Cloud-Architekt

Mid-Market (51-1000 emp.)

9/10/2025

"Ein echtes "Must-Have" für jeden Betreiber eines Anwendungsservers."

5/5

What do you like best about FusionReactor APM?

FR brings "light into the darkness" for me. I also like how this monitoring software is constantly being expanded and developed in a progressive manner. The cloud integration offers many advantages. I can't say directly what I like best about it; for me, it is a daily tool to observe, check, and monitor the direct impacts of my work on the servers. For error analysis, it provides me with very tailored tools and usually gets me to the goal immediately. I also really like the AI support. It often provides very useful tips to narrow down errors. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Fundamentally, it is very expensive. We have a lot of instances in the cloud, and we cannot run it on all installations, as that would far exceed our budget. Compared to the range of functions, the price is certainly justified, but as a standard monitoring tool on all instances, it is unfortunately too expensive, at least in our environment. Review collected by and hosted on G2.com.

sean r.

Development Manager

Small-Business (50 or fewer emp.)

4/4/2023

"Fusion Reactor has been an amazing and invaluable tool, in helping us monitor and troubleshooting"

4.5/5

What do you like best about FusionReactor APM?

Real-time monitoring of application performance, especially monitoring requests, in real-time. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Would be nice if some of the views/metrics were a little more customizable. So I could see the exact information I want, without having to run multiple reports Review collected by and hosted on G2.com.

Brandon B.

Sr. Manager of IT

Enterprise (> 1000 emp.)

9/17/2025

"Customer Success with FusionReactor"

5/5

What do you like best about FusionReactor APM?

The AI and its expanded capabilities are straightforward to use, the support provided by the team ensures an excellent end-user experience, and the ability to integrate all functions within a single platform makes this tool indispensable. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

At this time, we have not identified any drawbacks when using the cloud version. Review collected by and hosted on G2.com.

What problems is FusionReactor APM solving and how is that benefiting you?

FusionReactor APM is helping us identify and resolve performance bottlenecks, monitor application health in real time, and quickly diagnose issues across complex environments. By providing deep visibility into transactions, database queries, and server performance, it reduces downtime, accelerates troubleshooting, and improves overall system reliability. As a result, our team can proactively address potential problems before they impact end users, which enhances efficiency, reduces operational costs, and ensures a smoother experience for our customers." Review collected by and hosted on G2.com.

Verified User in Hospital & Health Care

Small-Business (50 or fewer emp.)

10/7/2025

"Using FusionReacton on CF11 and CF23"

4.5/5

What do you like best about FusionReactor APM?

I have used Fusion Reactor on both my CF11 and CF23 installations, and I find that the insights it offers are both comprehensive and detailed. This has made performance tuning and fault detection significantly quicker and much easier for me. Kudos also to their excellent customer service. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

A very minor issue (so minor I'm not really complaining about it - this review just wanted something negative, so I'm trying here, lol) is how tightly it binds to CF -- to turn FR off for any reason, you have to stop your CF installation briefly. Review collected by and hosted on G2.com.

Oli R.

VP Technology

Small-Business (50 or fewer emp.)

7/31/2025

"Terrific product for Server Monitoring and Optimization"

5/5

What do you like best about FusionReactor APM?

FusionReactor APM has made monitoring our web and application server a breeze, and the detailed dashboards, logging enhancements and OPSPilot AI code reviews have allowed us to fix bottlenecks and optimize our applications in numerous ways in the 12 months since we have installed the application. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

We have not been able to identify any downsides to FusionReactor APM as of this time. Review collected by and hosted on G2.com.

Erick Vincent Steve G.

IT Support I

Enterprise (> 1000 emp.)

8/21/2025

"A tool for Deep Java and ColdFusion Monitoring"

4/5

What do you like best about FusionReactor APM?

I really like how FusionReactor APM gives me clear, real time visibility into applications. Its not just standard monitoring it lets me dig into threads, memory usagem and database queries, and even debug applications while they’re running in production. For me, the setup was straightfoward, it fits perfectly with Java environment. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Honestly, there is nothing I dislike about FusionReactor APM. So far, it has worked smoothly for me and met all my expectations. Review collected by and hosted on G2.com.

Verified User in Financial Services

Enterprise (> 1000 emp.)

4/28/2025

"Great fast support!"

5/5

What do you like best about FusionReactor APM?

FusionReactor is vital to our org to ensuring we are getting the best of ColdFusion. Our favorite feature is the ability to monitor slow transactions, which immensely helps us in tuning our web pages. The customer support is friendly and quick, and they are eager to assist if you run into any issues. It is also very easy to login and setup and to see what you are looking for. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

I cannot say anything bad about FusionReactor itself. It fits our needs and has been a great tool for us to catch issues before they even happen. Review collected by and hosted on G2.com.

Verified User in Internet

Small-Business (50 or fewer emp.)

4/3/2025

"Best tool on the market for CF monitoring"

5/5

What do you like best about FusionReactor APM?

We use FR on a daily basis to either assist in troubleshooting or just general performance monitoring.

Installation and integration with Coldfusion servers is straightforward and easy to automate (we use ansible).

Customer support is stellar. Hands on, without too much bureaucracy and back and forth with the support team, with quick turnaround times.

We recently moved to the Cloud + AI platform and it has more features than we know to use. We're still in the process of learning the ropes, but it provides with a more holistic view of our infrastructure compared to our old on-prem deployments. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Nothing comes to mind immediately in terms of dislikes.

I would say that sometimes a setting is in a different place than what you would think.

There are various settings menus per function that may get confusing at times. Review collected by and hosted on G2.com.

What problems is FusionReactor APM solving and how is that benefiting you?

The primary use we have for it is that it's allowing us to track down bad performing parts of our applications and identify areas of improvement either in code, resources or configurations.

The breakdown it offers on requests, along with profiling, provide us with insights to improve and debug our applications. Review collected by and hosted on G2.com.

Yukta S.

Software Dev Admin

Small-Business (50 or fewer emp.)

3/25/2025

"Insightful Analytics through Design and animation"

4.5/5

What do you like best about FusionReactor APM?

I like how easy it is to navigate the application. I only saw the demo but the data insights the application gives into the development process is very helpful. It also has support for legacy languages as well. As someone who has used cfm I can see how helpful this application can be. Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Options to change the charts as we like to different types. Review collected by and hosted on G2.com.

Lewis H.

E-Commerce Manager

Mid-Market (51-1000 emp.)

6/6/2025

"Great tool for us and the developers"

5/5

What do you like best about FusionReactor APM?

usionReactor provides real-time monitoring of applications, which helps in quickly identifying and resolving performance issues. This has massively helped us predicting problems before they arise Review collected by and hosted on G2.com.

What do you dislike about FusionReactor APM?

Setting up alerts and notifications can be complex, and some of our users have reported difficulties in configuring them to meet their specific needs. Review collected by and hosted on G2.com.