IBM WebSphere Message Broker vs WSO2 Carbon [EOL] comparison

Why PeerSpot?

IBM and WSO2 are both solutions in the Enterprise Service Bus (ESB) category. Additionally, 84% of IBM users are willing to recommend the solution, compared to 100% of WSO2 users who would recommend it.

IBM WebSphere Message Broker

Read 13 IBM WebSphere Message Broker reviews

2,766 Views
1,660 Comparison Views

84% willing to recommend

WSO2 Carbon [EOL]

Read 1 WSO2 Carbon [EOL] review

100% willing to recommend

IBM WebSphere Message Broker

WSO2 Carbon [EOL]

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between IBM WebSphere Message Broker and WSO2 Carbon [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about Salesforce, IBM, Oracle and others in Enterprise Service Bus (ESB).

To learn more, read our detailed Enterprise Service Bus (ESB) Report (Updated: August 2026).

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Enterprise Service Bus (ESB)

August 2026

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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

IBM WebSphere Message Broker

Average Rating

7.8

Reviews Sentiment

6.6

Number of Reviews

Ranking in other categories

Enterprise Service Bus (ESB) (11th), Application Infrastructure (18th)

WSO2 Carbon [EOL]

Average Rating

9.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

BrajendraKumar

Technical Architect at HCL Technologies

Offers large-sized business information processing with a time-saving setup and impressive stability

I primarily use two previews of the product for Dev and two for QA as part of the production process. Whatever tools our company is using, the cost of a license in IBM WebSphere Message Broker is about 80% of all these software or tools. The message routing capabilities satisfy workflow efficiency. The product supports message formats of XML, JSON, and SSID, which are around 24 KB to 50 KB in size. The solution supports communication protocols like STTP and TCP. Features like DataGraph need to be introduced in IBM WebSphere Message Broker. Some of the clients of our organization are using an outdated version of IBM WebSphere Message Broker for which the vendor doesn't provide direct support anymore. For the aforementioned version, our company professionals can solve the queries on their own without seeking support from IBM. During the installation of a prior version of IBM WebSphere Message Broker, sometimes I have to configure the failovers through the cluster, where issues arise, and I often seek help from the support team. The solution is being used by some medicine companies in our organization that receive sales orders from the EDR or JDE. I would not recommend the product to others as its becoming obsolete and they can rather choose a middleware solution from Amazon or Azure. But I would overall rate the product a nine out of ten.

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it_user420135

Senior System Architect & Consultant at a tech services company with 51-200 employees

It allows you to deal with any mediation situation based on messages using concepts like proxy services and APIs.

The Data Services Server is a beautiful product which allows you to "expose" your data as REST and/or SOAP services secured or not using any of the databases you might to keep your business data. Using with the Identity server it gives you the possibility to manage all the identity subjects in your Organization, it connects out of the box to any corporate user store you have through LDAP or JDBC, it allows you to manage different mechanisms to implement authentication / authorization using Web SSO, SAML2, OAUTH2, federated authentication, among others. Also, it allows you to control all this through its administrative interface which could be exposed out of the box as SOAP services and also you can use it to implement role based access controls using XACML policies and business claims.

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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

"Before the cloud, it was very easy for us to build and it was quick to integrate."

"It's reliable for our day-to-day operations, ensuring fast and secure data integration across different systems."

"Setup is very easy; we had proper documentation for setup, so it didn't take much time, and setup takes a maximum of two or three hours and I can set up the complete application."

"IBM WebSphere Message Broker is one of the best middleware solutions"

"Message Broker is valuable because most of the applications are using MQ. Even in my current engagement, the few applications which I audit to onboard the bank are using MQ."

"The transactions and message queuing are the most valuable features of the solution."

"The documentation, performance, stability and scalability of the tool are valuable."

"We have a large number of use cases for this product, and it is built into the underlying infrastructure for most of our applications."

More IBM WebSphere Message Broker pros

"The Enterprise Service Bus is really fast and flexible, it allows you to deal with any mediation situation based on messages using concepts like proxy services, APIs, and it has lots of connectors that facilitates its interaction with other products."

Cons

"As our business requirements evolve, we require more dynamic capabilities to adapt and scale our services accordingly."

"I know that Message Broker was a very tightly copied product with another IBM product, that is, IBM MQ. I would like to have a little bit more decoupling from the IBM MQ because it should not be a prerequisite for IBM WebSphere Message Broker usage."

"My biggest complaint about this product is the price."

"There is some lag in the GUI. There have been some performance issues and maybe it's because of the application data."

"The product's features are not being upgraded or enhanced by the vendor"

"The images and size of the containers are too big and I think that they should be more lightweight."

"I find the installation configuration is quite difficult compared to other solutions."

"They are expensive and not worth the money we are spending on them."

More IBM WebSphere Message Broker cons

"In a general sense, the documentation of these products should be improved."

Pricing and Cost Advice

"I feel with IBM, when you want certain functions or features, you have to continuously purchase add-ons. There are always additional fees."

"The solution is expensive."

"IBM products are generally more stable and have more features, but also come at a greater cost."

"The solution is expensive."

"The licensing cost of IBM WebSphere Message Broker needs to be reduced"

"This product is more expensive than competing products."

"The price is very high and it's the main reason that we are searching for alternatives."

"IBM software can be costly, but having a contract has helped manage and potentially lower costs over time."

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

17%

Outsourcing Company

13%

Construction Company

12%

Manufacturing Company

11%

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	2
Large Enterprise	10

No data available

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Compared 6% of the time

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Compared 30% of the time

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Compared 21% of the time

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Compared 16% of the time

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Compared 15% of the time

More WSO2 Carbon [EOL] Competitors

Product Reports

Buyer's Guide

IBM WebSphere Message Broker

September 2026

Download IBM WebSphere Message Broker product report

Buyer's Guide

Enterprise Service Bus (ESB)

August 2026

Download WSO2 Carbon [EOL] product report

Also Known As

WebSphere Message Broker

Carbon

Overview

IBM WebSphere Message Broker provides reliable data integration and effective management of diverse message formats. It excels in stability and scalability, supporting complex integration needs with ease, making it suitable for industries like banking and healthcare.

IBM WebSphere Message Broker is a robust tool for data integration, favored for its performance with large data volumes and its ability to handle protocol transformations. It features a graphical interface that simplifies development and deployment. Users find it effective for communication with legacy systems through diverse adaptors, while its support for publish-subscribe patterns and execution groups enhances scalability. However, some challenges include the need for improved flexibility in service creation, managing complex use cases, and integrating with cloud solutions. The high cost and need for better technical support are additional concerns.

What are the most important features of IBM WebSphere Message Broker?

Stability and Reliability: Ensures consistent data integration capabilities.
Diverse Adaptors: Supports communication with legacy systems.
Scalability: Facilitates scaling with execution groups and nodes.
Graphical Interface: Offers straightforward development and deployment.
Message Queuing and Publish-Subscribe: Adds value for diverse communication needs.

What benefits or ROI should be reviewed?

Enhanced Integration: Facilitates complex data routing and transformation.
Performance with Large Data: Efficient in handling high-volume data processing.
Application Connectivity: Bridges communication between diverse systems.
Protocol Management: Handles protocol transformations effectively.

IBM WebSphere Message Broker is widely implemented in banking and healthcare, playing a crucial role in connecting systems and developing integration flows. It helps organizations meet core business needs, often used for integrating core banking systems and handling tasks like pick and drop shipments. This tool helps maintain up-to-date standards in these industries.

IBM

WSO2 Carbon redefines middleware by providing an integrated and componentized middleware platform that adapts to the specific needs of any enterprise IT project - on premise or in the cloud.

WSO2

Sample Customers

WestJet, Blue Cross and Blue Shield of North Carolina, Sharp Corporation, Michelin Tire

Bdigital, M-creations, Yenlo, Codenvy, Ohio Automobile Club

Buyer's Guide

Enterprise Service Bus (ESB)

August 2026

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We monitor all Enterprise Service Bus (ESB) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.