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What Is the Difference Between Drools and GoRules?

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The business rules engine in your software is an essential component that determines how the software operates, and how efficient it is. Drools and GoRules both provide rule sets for business systems, but they differ in key ways.

How Easy Are They to Use?

Determining which one is easier to use may be a deciding factor for business owners who don’t want to deal with a steep learning curve for their software. GoRules is considered to be pretty straightforward and user friendly. It sets up quickly and easily, and is a good option if your business doesn’t have an IT department.

Drools, on the other hand, is a bit more technical. It has more features and is more complex, so it will take longer to get used to. Because of this customizability, you can do more with it, but you have to put in the time to learn its nuances.

How They Implement

Setting up either of these engines is a breeze. The method of deployment will determine how easy it is, though. They both support serverless implementation, but GoRules will cold-start faster. If you are integrating them into an existing service, then you should know that Drools provides support for JVM languages like Kotlin and Java. GoRules, on the other hand, supports Node.js, Python, and Rust.

How Reliable Are They?

Let’s compare their dependability next. They both perform well, but there are some minor performance issues you need to be aware of.

With Drools, you are dealing with a Java rule engine (more details) that has preloaded memory and that can execute as you need it. The GoRules engine uses Rust to retrieve JSON files.

GoRules loads its rules in real-time, so it works well for dynamic processes. Drools may not do so well with live loading, especially if you are putting a lot on the system. It may delay slightly and have some small performance issues.


GoRules definitely boots faster. It doesn’t have to put together all the rules before it can be used, since it works on-demand. Drools ranges from seconds to minutes in its startup time.


We suggest using GoRules instead of Drools for the reasons we have already stated, like its faster speed and wider range of implementation options. The scalability and speed of GoRules are built into its architecture, putting it a step ahead of the competition.

Drool supports multiple languages and works with JVM to be flexible across multiple platforms. Even though both engines are scalable, they take different approaches to that.

The Drools engine’s greater complexity and more diverse options could be advantageous for technically fluent operators, but most others will probably prefer the simpler GoRules.

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