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OpenESB 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

OpenESB
Ranking in Enterprise Service Bus (ESB)
14th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
4
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 (28th)
 

Mindshare comparison

As of June 2026, in the Enterprise Service Bus (ESB) category, the mindshare of OpenESB is 2.9%, up from 1.5% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.7%, up from 5.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
WSO2 Enterprise Integrator5.7%
OpenESB2.9%
Other91.4%
Enterprise Service Bus (ESB)
 

Featured Reviews

PP
Integration Architect at Pymma consulting
Easily define choreography and orchestration with this process-oriented solution
We provide contracted services for our customers that include coordinating with providers and implementing the solution.  A current project includes using the solution to deploy 200 microservices.  The process-oriented solution allows you to define choreography and orchestration. This feature…
AC
Technical director at Cremete
Effective data transformation and integration in complex environments with high functionality
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 hand on this environment is a very demanding task. This is the real problem. The problem is not about the product, but about the complexity to manage, to configure, to decide what to do. I have some experience using SAP R/3. It seems to me something similar. When you have to configure a situation with a client, especially for a client not in an industrial sector, but in a service sector, it is quite usual that you are in trouble for some reason. This is always the story that I found in the implementations I have done. Maybe there are only three or four big problems, in some other cases there are more than that, but this is the situation usually. For WSO2 Enterprise Integrator, not the same, but I must say it is quite often there is a need to put together some pieces and make it work in a coordinated way.

Quotes from Members

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

Pros

"The process-oriented solution allows you to define choreography and orchestration."
"One of our clients is a signature company and developed on a classic Java enterprise application using OpenESB, and in one year they saved £20,000,000 on development and maintenance."
"Millions of people were connecting every month on the system and there were no issues."
"ESL Gaming used OpenESB for its scalability and processes 1 billion of messages daily with a large configuration deployed on a private cloud."
"The core is very stable."
"One of the most valuable features is being able to implement business processes while keeping track of the design from BPMN to a BPEL Implementation."
"OpenESB pushes the organization to clearly define service boundaries and interfaces. So it motives the business and the development teams to clearly define their business services and processes they want to implement. OpenESB supports fine and coarse-grain granularity for the services and supports top-down and bottom-up approaches for the services, processes definition, and composition."
"In my opinion, the most valuable aspect of this solution is its extensive range of adaptors and connectors. This feature holds significant importance and provides great value to users."
"The connectors have been the most impactful features for handling integrations. I can use these connectors when I need specific connectivity with a third party, like a core banking system in BFSI. I don't need to do all the development. I take the specific connector, put in the IP address and password, and it takes care of everything."
"The solution's technical support is very knowledgeable."
"WSO2 Enterprise Integrator may cost you about twenty-five thousand dollars annually per year compared to IBM Cloud Pak, which would cost you around one million dollars."
"The built-in connectors help with quick connectivity to the platforms, and we are using this for both our banking and insurance clients."
"The stability is excellent."
"It's a consolidated product. It works and it does its job pretty well."
"The solution's customer service is good."
 

Cons

"The documentation needs to be better — maybe they could add more accurate tutorials."
"The Studio is a good tool based on NetBeans, but some of its features have to be improved, liked local schemas management."
"The documentation needs to be better."
"Cloud deployment is weak and needs to be improved."
"Regarding its management, a web console being able to synchronize distributed instances would be great."
"The documentation of the product must be improved. It could be tricky to find the right documentation on a topic since the documentation is spread in many places. I advise the new joiner to contact the community to get entry points and additional documentation. Tutorial and Video must be present to take up the product."
"The scalability is not strong. If you want to scale it you have to install multiple servers."
"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."
"The customization can be a bit difficult."
"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."
"They should release upgrades more frequently."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
"One of the reasons that we are looking for a replacement is their way of defining integration. The language of the XML structures that I use to describe the integrations are not that standard, and it's not easy to find people who are familiar with this approach."
"I would like to see better documentation for the open-source version."
 

Pricing and Cost Advice

"There are two versions. The first is the community version, which is free and contains the last part of the feature, but if you want to get the Enterprise version, you'll have to pay €60,000 which covers support and two instances on production."
"The cost for the prediction instrument is high because it is charged per instances based on prediction, but the rest of the solution is free."
"The Community Edition is a full product you can use in production, it does not have limitations like other alternatives."
"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."
"It is a low-cost solution."
"The open-source, unsupported version is available free of charge."
"The cost is better than IBM Cloud Pak."
"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
11%
Comms Service Provider
8%
Construction Company
6%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise11
 

Questions from the Community

Ask a question
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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 ...
What is your primary use case for WSO2 Enterprise Integrator?
A typical use case for WSO2 Enterprise Integrator is when I am in an interoperability environment with healthcare facilities and I have to put together a lot of applications that share some HL7 mes...
What advice do you have for others considering WSO2 Enterprise Integrator?
For simpler tasks or simpler use cases, we avoid using WSO2 Enterprise Integrator because it is quite complex. So it is easier to manage some more simple solutions than that. WSO2 Enterprise Integr...
 

Overview

 

Sample Customers

Information Not Available
West
Find out what your peers are saying about OpenESB vs. WSO2 Enterprise Integrator and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.