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IBM WebSphere Message Broker vs Mule ESB 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 WebSphere Message Broker
Ranking in Enterprise Service Bus (ESB)
9th
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
13
Ranking in other categories
Application Infrastructure (17th)
Mule ESB
Ranking in Enterprise Service Bus (ESB)
1st
Average Rating
8.2
Reviews Sentiment
5.7
Number of Reviews
54
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM WebSphere Message Broker is 4.8%, up from 4.1% compared to the previous year. The mindshare of Mule ESB is 17.2%, down from 20.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
Mule ESB17.2%
IBM WebSphere Message Broker4.8%
Other78.0%
Enterprise Service Bus (ESB)
 

Featured Reviews

MANUEL VALDIVIA - PeerSpot reviewer
Senior Manager at a financial services firm with 1,001-5,000 employees
Routes messages efficiently across our services, but the features for scalability need improvement
One of the key benefits has been its ability to expose services and securely integrate applications within our architecture. It's been integral in maintaining a stable infrastructure despite its limitations with dynamic service creation and flexibility compared to newer technologies like Kubernetes. The main challenge has been scalability during peak usage times.
Srinivas-Kanduri - PeerSpot reviewer
Enterprise integrator at a tech vendor with 10,001+ employees
Integration architecture has enabled reliable multi-channel messaging and secure API management but now needs better analytics and simpler development
In my opinion, the real-time analytics part of Mule ESB is not up to the mark for the decision-making process. While there are some analytics features, they lack the standards needed for enterprise use. Compared to other analytics tools such as Power BI, MuleSoft falls short.Points for improvement in Mule ESB definitely include enhancing the analytics capabilities because currently, they rely on external logging tools such as Splunk or ELK, which is lagging behind compared to other tools such as Workato that offer more analytical features. Additionally, issues arise with AI-based use cases due to dependencies on Salesforce tools such as agent force, making development more complicated when it should be more independent. Developing AI-based agents without being tied to Salesforce applications could also enhance functionality.

Quotes from Members

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

Pros

"We only use the basic features, but the most valuable one for us is the Publish-subscribe pattern."
"We are using three or four services in the backend for reformatting messages, and it is straightforward to use."
"The solution has good integration."
"It is a scalable solution...The setup is easy."
"The most valuable feature of IBM WebSphere Message Broker is the ability to facilitate communication with legacy systems, offering a multitude of great capabilities. For example, if there is a mainframe system in place with a web service serving as the front end. In that case, the solution enables efficient protocol transformations to convert all request payloads into a format that the legacy systems can accept, rendering the integration and transformation processes seamless and highly effective."
"IBM WebSphere Message Broker is one of the best middleware solutions"
"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."
"It's reliable for our day-to-day operations, ensuring fast and secure data integration across different systems."
"The most valuable feature is the Salesforce integration."
"It's open source, and there are a lot of community resources. Mule ESB makes it easy to connect to other software applications."
"It is an ESB that can deploy seamlessly on-premises and in the cloud with strong API management and governance and has a strong integration with open source products like JBPM and Drools if these features are part of your requirements."
"We can do very fast development of the orchestrations of MuleSoft."
"When we bought the solution, it was an in-the-cloud or PaaS solution, and because of that, I didn't have to take care of the infrastructure, which was a big plus, and it was pretty fast to develop APIs on this platform, so the time to value was pretty good."
"One of the key features I find unique and most useful in Mule ESB is the loosely coupled architecture, allowing for multi-delivery where the same data can be sent to multiple systems."
"The solution has a good graphical interface."
"MuleSoft ESB is an ideal choice for us and makes it easier for the developers to deliver complex projects with the best quality."
 

Cons

"I find the installation configuration is quite difficult compared to other solutions."
"As our business requirements evolve, we require more dynamic capabilities to adapt and scale our services accordingly."
"Stability and pricing are areas with shortcomings that need improvement."
"Technical support is good but they could have a better response time."
"It is currently a weighty product."
"Today I probably wouldn't go for Message Broker because of the cost structure, support, and the whole ecosystem around IBM."
"The user interface is designed mainly for experts, much in the way a BPM or another integration tool is."
"The images and size of the containers are too big and I think that they should be more lightweight."
"The documentation is not extensive and is limited to examples which are too basic."
"In the next release, I would like to see improvement in the generator for the DataWeave language so that it's a little more graphic."
"The main issue we currently have is that the version we are using will not be supported for much longer and we'll have to migrate to the newer version."
"MuleSoft is not so strong in method-based integration, so they're not so functional in that regard."
"It would be beneficial if users could navigate the UI easily without extensive training or learning curves."
"It should have some amount of logging."
"Mule ESB isn't as secure as IBM. Financial companies go with IBM for that reason."
"It needs more samples. Also, the dependency on Maven should be removed."
 

Pricing and Cost Advice

"The price is very high and it's the main reason that we are searching for alternatives."
"The solution is expensive."
"I feel with IBM, when you want certain functions or features, you have to continuously purchase add-ons. There are always additional fees."
"This product is more expensive than competing products."
"IBM software can be costly, but having a contract has helped manage and potentially lower costs over time."
"The solution is expensive."
"The licensing cost of IBM WebSphere Message Broker needs to be reduced"
"IBM products are generally more stable and have more features, but also come at a greater cost."
"This product is cheaper than some offered by other vendors, although there is a problem because you have to pay for some third-party adapters."
"Mule ESB is an expensive solution."
"Plan your licensing model (cloud or on-premises or hybrid) that will allow seamless integration with new partners."
"Mule ESB is a costly solution. We pay approximately $80,000 annually for the system. The cost of the number of instances, annual subscription, and cloud hosting services are expensive."
"Most of the challenges that I had with this solution were for smaller customers. There is not a good licensing model or pricing model. It is more expensive than other solutions, and that's the downside of MuleSoft. I had to be creative to be able to sell it to the business, but we did. This is something they have to work on because for large companies, it's affordable, but for small and medium businesses, it's very hard to sell."
"The licensing is yearly, and there are additional fees for services."
"The pricing must be improved."
"The solution is expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
21%
Construction Company
13%
Manufacturing Company
10%
Computer Software Company
7%
Manufacturing Company
13%
Financial Services Firm
13%
Construction Company
10%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business2
Large Enterprise10
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise6
Large Enterprise39
 

Questions from the Community

What is your experience regarding pricing and costs for IBM WebSphere Message Broker?
IBM software can be costly, but having a contract has helped manage and potentially lower costs over time.
What needs improvement with IBM WebSphere Message Broker?
There could be greater flexibility and agility in service creation for the product. As our business requirements evolve, we require more dynamic capabilities to adapt and scale our services accordi...
What is your primary use case for IBM WebSphere Message Broker?
We use the product for exposing services at the application level, integrating with various architectures like WebSphere, and handling static service creation.
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 is your experience regarding pricing and costs for Mule ESB?
In terms of costing, I consider it 50-50; I would not say it's 100% cost-effective because the platform itself is a little costly. We are trying to improve how efficiently we make our ecosystem. It...
 

Also Known As

WebSphere Message Broker
No data available
 

Overview

 

Sample Customers

WestJet, Blue Cross and Blue Shield of North Carolina, Sharp Corporation, Michelin Tire
Ube, PacificComp, University of Witwatersrand, Justice Systems, Camelot
Find out what your peers are saying about IBM WebSphere Message Broker vs. Mule ESB and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.