OpenESB vs WSO2 Enterprise Integrator comparison

OpenESB and WSO2 are both solutions in the Enterprise Service Bus (ESB) category. OpenESB is ranked #13, while WSO2 is ranked #7 with an average rating of 8.0. OpenESB holds a 1.9% mindshare in E, compared to WSO2’s 5.7% mindshare. Additionally, 100% of OpenESB users are willing to recommend the solution, compared to 76% of WSO2 users who would recommend it.

OpenESB

Read 4 OpenESB reviews

372 Views
372 Comparison Views

100% willing to recommend

WSO2 Enterprise Integrator

Read 20 WSO2 Enterprise Integrator reviews

1,766 Views
795 Comparison Views

76% willing to recommend

OpenESB

WSO2 Enterprise Integrator

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 3, 2025

WSO2 Enterprise Integrator and OpenESB compete in the integration solutions domain. WSO2 Enterprise Integrator holds the upper hand with its advanced features and deployment support, while OpenESB offers a cost-effective solution due to its open-source nature.

Features: WSO2 Enterprise Integrator provides robust integration with multiple cloud-native instances, managed API support, and extensive capability for seamless integrations. OpenESB is valued for its simplicity, strong enterprise message processing, and significant integration functionalities.

Ease of Deployment and Customer Service: WSO2 Enterprise Integrator offers comprehensive deployment flexibility across various environments, coupled with strong customer support. OpenESB provides straightforward deployment processes but has lower customer service responsiveness.

Pricing and ROI: WSO2 Enterprise Integrator involves a higher initial cost, justified by its extensive features and long-term benefits. OpenESB, being open-source, involves lower setup costs, making it attractive to budget-conscious users seeking reasonable return on investment.

To learn more, read our detailed OpenESB vs. WSO2 Enterprise Integrator Report (Updated: September 2025).

Buyer's Guide

OpenESB vs. WSO2 Enterprise Integrator

September 2025

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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)

13th

Average Rating

8.6

Reviews Sentiment

7.2

Number of Reviews

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

Ranking in other categories

Data Integration (32nd)

Mindshare comparison

As of November 2025, in the Enterprise Service Bus (ESB) category, the mindshare of OpenESB is 1.9%, up from 1.2% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.7%, up from 5.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Service Bus (ESB) Market Share Distribution
Product	Market Share (%)
WSO2 Enterprise Integrator	5.7%
OpenESB	1.9%
Other	92.4%

Enterprise Service Bus (ESB)

Featured Reviews

PaulPerez

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…

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Ritesh_Shah

Senior Solution Architect at Hewlett Packard Enterprise

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.

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Quotes from Members

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

Pros

"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."

"The core is very stable."

"The process-oriented solution allows you to define choreography and orchestration."

"The solution's technical support is very knowledgeable."

"The customer service executives are very responsive."

"The productivity is the most valuable feature. It is very easy to write remediations."

"Currently, I find the configuration part quite valuable, where you can easily configure things."

"It's a very complete product. It allows us to network security and add more layers of security to the system."

"The stability is excellent."

"The learning curve for this solution is very good."

"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."

More WSO2 Enterprise Integrator pros

Cons

"Cloud deployment is weak and needs to be improved."

"The documentation needs to be better."

"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."

"Regarding its management, a web console being able to synchronize distributed instances would be great."

"The integration capabilities need to be improved."

"The product's price is an area of concern where improvements are required."

"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 them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."

"The administration side is complex and could use significant improvements to enhance the solution's functionality."

"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 setup can be difficult for those not familiar with the solution."

"The micro integrator should be improved. There is room for enhancement considering alternative integration components."

More WSO2 Enterprise Integrator cons

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 Community Edition is a full product you can use in production, it does not have limitations like other alternatives."

"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 cost is better than IBM Cloud Pak."

"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 open-source, unsupported version is available free of charge."

"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 solution costs about 20,000 or 30,000 euros per year, per instance."

"It is a low-cost solution."

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Top Industries

By visitors reading reviews

Hospitality Company

16%

Computer Software Company

16%

Financial Services Firm

16%

Logistics Company

Financial Services Firm

15%

Computer Software Company

11%

Government

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	8
Midsize Enterprise	2
Large Enterprise	11

Questions from the Community

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What do you like most about WSO2 Enterprise Integrator?

WSO2's analytics capability is good, considering the ELC support they provide.

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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...

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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 ...

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Compared 66% of the time

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Spring Cloud Data Flow vs WSO2 Enterprise Integrator

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webMethods.io vs WSO2 Enterprise Integrator

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Red Hat Fuse vs WSO2 Enterprise Integrator

Compared 7% of the time

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Product Reports

Buyer's Guide

OpenESB

October 2025

Download OpenESB product report

Buyer's Guide

WSO2 Enterprise Integrator

October 2025

Download WSO2 Enterprise Integrator product report

Overview

OpenESB is a Java-based open-source enterprise service bus. It can be used as a platform for both enterprise application integration and service-oriented architecture. OpenESB allows you to integrate legacy systems, external and internal partners and new development in your Business Process.

OpenESB

WSO2 Enterprise Integrator, core to the WSO2 Integration Agile Platform, is an open source Integration product for cloud native and container-native projects. It enables enterprise integration experts to build, scale, and secure sophisticated integration solutions to achieve digital agility. Unlike other integration products, WSO2 Enterprise Integrator already contains integration runtimes, message brokering, business process modeling, analytics and visual tooling capabilities.

WSO2

Sample Customers

Information Not Available

West

Buyer's Guide

OpenESB vs. WSO2 Enterprise Integrator

September 2025

Free Report: OpenESB vs. WSO2 Enterprise Integrator

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