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IBM Integration Bus vs WSO2 Enterprise Integrator comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 3, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

IBM Integration Bus
Ranking in Enterprise Service Bus (ESB)
1st
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
70
Ranking in other categories
No ranking in other categories
WSO2 Enterprise Integrator
Ranking in Enterprise Service Bus (ESB)
7th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
Data Integration (29th)
 

Mindshare comparison

As of August 2025, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 21.9%, up from 21.8% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.4%, up from 5.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB)
 

Featured Reviews

Ashraf Siddiqui - PeerSpot reviewer
Helpful for complex integrations because it has tools and functionality to integrate with other systems
Everything needs to be improved. As far as integration and the cloud are concerned, things are moving to the cloud side. When you use Kubernetes and similar technologies, IBM Integration Bus doesn't greatly facilitate these environments. Maybe I don't know enough about that, but I feel that when it comes to the DevOps environment, the tool needs to be deployed on production in a way that's just like pods. Cloud integration needs to be more facilitated with the DevOps environment. This IBM technology needs to adapt because in the recent world, in the real world, we see that everything is just a cloud pod. Whenever you need to scale anything, you just put some cloud and pod and improve it, make any server and deploy it. But in IBM Integration Bus, there is a problem because we can't do this as easily. In short, IBM needs to more emphasize or more integrate with the cloud environments as well, similar to DevOps. There are limitations in IBM Integration Bus when it comes to DevOps.
Ritesh_Shah - PeerSpot reviewer
Decreases the development timeframe and costs
The main issue with the product is pricing. It uses core-based pricing for WSO2 Enterprise Integrator and API Manager. It would be best if you had APIM by default. It provides many connectors for easy integration with third-party systems. Often, customers decide to develop using open-source tools like Spring Boot if there aren't many connectors required to avoid increasing costs. They'll develop this way and then deploy using APIM, the bare minimum needed. It is mainly required for very complicated setups with many connectors. In the implementations I've seen, people often used open-source tools because there weren't many third-party systems involved—just their organization's own systems. From WSO2 Enterprise Integrator, I expect them to bring up more and more connectors in the future. That's the main expectation. Having more connectors in various areas will help us when discussing new requirements. I don't have any specific use case right now, so I can't name a particular connector. But, as new technologies emerge, the relevant connectors should be there for those. WSO2 Enterprise Integrator mainly helps with the integration part, which can be simplified only if you have relevant connectors for whatever you're doing.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The solution offers good performance and is stable."
"The system's stability is the most valuable feature."
"It can be implemented as an enterprise service bus to seamlessly connect all applications within your enterprise."
"It is one of the most stable products which I have seen in the market."
"The solution's features are all quite useful. We use all of them."
"We use IBM Integration Bus for document conversions."
"REST API design and development support are useful. Building and exposing APIs using GUI API designer with editor makes implementation a breeze."
"The most valuable feature is the security."
"Currently, I find the configuration part quite valuable, where you can easily configure things."
"It's a consolidated product. It works and it does its job pretty well."
"The solution's technical support is very knowledgeable."
"The installation process is easy."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"The solution's customer service is good."
"The drag-and-drop features for connectors are very valuable."
"The stability is excellent."
 

Cons

"IBM Integration Bus can improve by implementing no-code or drag-and-drop adapters development, similar to what is available in Red Hat."
"The performance needs to be enhanced when working with the Toolkit."
"We decided to move away from IBM Integration Bus for IT technical refreshments."
"This product uses the PVU (Processor Value Unit) license model from IBM, and it is something that should be improved."
"Performance can be an issue sometimes. The tool occasionally crashes due to memory-related problems. We've reported these issues to IBM, and they are actively working on improving the tooling experience."
"Its licensing or subscription model should be improved for more flexible adoption. There should also be more ease of use."
"The interface could be more user-friendly."
"It needs improvement in terms of technical support as well as in terms of integration of data mining. I am not convinced about many things in this solution, such as the conversion of the DFDL or copybook file, which is the conversion from a text file to XML. It is very complex. They should also provide more information about this solution in the IBM Knowledge Center. I can get a lot of information from the IBM Knowledge Center about DataStage, but I don't get that much information about IBM Integration Bus. There is hardly any information even on the internet and various channels such as YouTube. They can provide good step-by-step documentation based on a company's requirements. It would be really helpful. My company is mainly looking for data mining and communicating with multiple servers. IBM Integration Bus is good for communicating with multiple servers, but it needs improvement for XML conversion and data mining. We have a lot of old systems that use XML."
"WSO2 libraries are not mature enough. For example, if you want to integrate with Kafka using its Kafka library, it often has many bugs."
"The integration capabilities need to be improved."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
"There are a lot of security settings that when you apply you have to re-apply again every time you modify a setting. It is something that really needs to be enhanced."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
"The customization can be a bit difficult."
"The product's price is an area of concern where improvements are required."
"The main issue with the product is pricing. It uses core-based pricing for WSO2 Enterprise Integrator and API Manager. It would be best if you had APIM by default. It provides many connectors for easy integration with third-party systems."
 

Pricing and Cost Advice

"The price of the IBM Integration Bus is expensive. If you compare the price to the cloud version you can purchase what you need but the on-premise version price is flat."
"The pricing could be improved to make it more competitive."
"The pricing of the solution is high."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"It is a highly-priced solution."
"IBM is expensive."
"Our licensing is based on a five-year contract, and as far as I know, there are no costs in addition to the standard licensing fee."
"I generally do not get involved in the licensing or pricing because I'm a hardcore technical guy, but I'm aware of the fact that IBM is highly expensive, so not everybody can afford it. All the products are licensed."
"It is a low-cost solution."
"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
"The cost is better than IBM Cloud Pak."
"The open-source, unsupported version is available free of charge."
"I rate the product price a six on a scale of one to ten, where one is low price and ten is high price."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
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Top Industries

By visitors reading reviews
Financial Services Firm
21%
Computer Software Company
13%
Manufacturing Company
8%
Insurance Company
6%
Financial Services Firm
18%
Computer Software Company
16%
Manufacturing Company
7%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Migration from IBM Integration Bus to Mulesoft ESB for a large enterprise tech services company
I was previously part of the Oracle SOA/OSB development team. In my current capacity I architected solutions using MuleSoft Anypoint Platform on cloud / on-premises and hybrid modes and on PCE/RTF ...
IBM Integration Bus vs Mule ESB - which to choose?
Our team ran a comparison of IBM’s Integration Bus vs. Mule ESB in order to determine what sort of ESB software was the best fit for our organization. Ultimately we decided to choose IBM Integratio...
What do you like most about IBM Integration Bus?
The message queue, like, message queue connectors. Then they have a built in connectors for most of the systems, like SAP, oracle database, and this Civil connector is there. Of course, we have thi...
What do you like most about WSO2 Enterprise Integrator?
WSO2's analytics capability is good, considering the ELC support they provide.
What is your experience regarding pricing and costs for WSO2 Enterprise Integrator?
The product has reasonable and competitive pricing for enterprise customers. It is expensive for small businesses especially. They are using the open-source solution, and they find it expensive sin...
What needs improvement with WSO2 Enterprise Integrator?
Something that could be improved in WSO2 Enterprise Integrator is that the problem is not a lack of capability or functionalities. The problem is that it is a very complex environment. To put your ...
 

Also Known As

IBM WebSphere ESB
No data available
 

Overview

 

Sample Customers

Salesbox, €sterreichische Bundesbahnen (€BB), Road Buddy, Swiss Federal Railways, Electricity Supply Board, The Hartree Centre, ESB Networks
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Find out what your peers are saying about IBM Integration Bus vs. WSO2 Enterprise Integrator and other solutions. Updated: July 2025.
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