Ever wanted to debug your Java applications in production?

Now you can. It’s simple to install, safe to use and no significant performance overhead (honestly)

Start Free 14 Day Trial   Ultimate Edition   Pricing    Screen Shots

The Java Developers Choice

FusionReactor goes beyond “just monitoring”, to actively minimize server downtime and accelerate time to resolution like no other monitoring tool on the market. Cut to the chase and get to the root of your Java production application problems in no time.

1. Download the software

Step 1: Download FusionReactor (8.3.2 - 17th February 2020)

Download the installer for your server platform from the table below:

Mac OS (OSX)

FusionReactor MD5's

Step 1: Download the FusionReactor JAR (8.3.2 - 17th February 2020)

FusionReactor Single JARFR Single JAR


Step 2: Download the Required Debug Libraries

If you're using FR6 Ultimate you are required to download the debug libraries for the production debugger tool. If you're on Standard or Enterprise you can skip this step!

Debug Libraries (Required for Ultimate)Debug Libs

FusionReactor MD5's

2. Get your trial key

Enter your details below and we will send your trial license key to your email.

3. Start monitoring


FusionReactor Single JAR Installation

Performing a manual FusionReactor installation is really quick and takes no longer than a few minutes. Check out how to do it below:

Performing a manual installation? See the Manual Installation Guide

More details on the different Installation Methods

FusionReactor Works with your Framework