Mule ESB vs WSO2 Enterprise Integrator comparison

Salesforce and WSO2 are both solutions in the Enterprise Service Bus (ESB) category. Salesforce is ranked #2 with an average rating of 8.5, while WSO2 is ranked #7 with an average rating of 9.0. Salesforce holds a 16.7% mindshare in E, compared to WSO2’s 6.3% mindshare. Additionally, 87% of Salesforce users are willing to recommend the solution, compared to 76% of WSO2 users who would recommend it.

Mule ESB

Read 54 Mule ESB reviews

4,459 Views
3,478 Comparison Views

87% willing to recommend

WSO2 Enterprise Integrator

Read 20 WSO2 Enterprise Integrator reviews

3,072 Views
983 Comparison Views

76% willing to recommend

Mule ESB

WSO2 Enterprise Integrator

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 3, 2025

Mule ESB and WSO2 Enterprise Integrator compete in the integration platform category. Mule ESB seems to have the upper hand with its wide array of connectors and flexible integration solutions, while WSO2 focuses more on stability and API management.

Features: Mule ESB offers a wide selection of connectors, making it easy for developers to integrate services. It also features DataWeave and Mule Expression Language, enhancing its flexibility and performance. WSO2 Enterprise Integrator provides strong API management and various connectors, with a focus on stability. It supports integration of diverse applications through efficient mediation and transformation capabilities.

Room for Improvement: Mule ESB could improve in providing more stable upgrades, simplifying its documentation, and enhancing SOAP services support. Its high memory consumption and pricing are also areas of concern. WSO2 Enterprise Integrator needs better documentation, simpler customization options, and improved clustering capabilities. Enhancing on-premise analytics support would also be beneficial for users.

Ease of Deployment and Customer Service: Mule ESB supports Public, Private, and Hybrid Cloud setups and offers mixed reviews on customer service. It benefits from community support. WSO2 Enterprise Integrator mainly serves on-premises environments and is generally seen to have satisfactory customer support.

Pricing and ROI: Mule ESB's enterprise version is costly, with various licensing and deployment options, while the Community Edition suits budget-conscious users. WSO2's pricing is considered more affordable for small to medium-sized enterprises, providing open-source flexibility but with potentially high enterprise subscription costs. Both solutions can deliver ROI when used effectively, though Mule ESB may be relatively more expensive.

To learn more, read our detailed Mule ESB vs. WSO2 Enterprise Integrator Report (Updated: April 2026).

Buyer's Guide

Mule ESB vs. WSO2 Enterprise Integrator

April 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

Mule ESB

Ranking in Enterprise Service Bus (ESB)

2nd

Average Rating

8.2

Reviews Sentiment

5.7

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 (29th)

Mindshare comparison

As of April 2026, in the Enterprise Service Bus (ESB) category, the mindshare of Mule ESB is 16.7%, down from 20.5% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.3%, up from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Service Bus (ESB) Mindshare Distribution
Product	Mindshare (%)
Mule ESB	16.7%
WSO2 Enterprise Integrator	6.3%
Other	77.0%

Enterprise Service Bus (ESB)

Featured Reviews

Srinivas-Kanduri

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.

Read full review

Andrea Cuccarini

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.

Read full review

Quotes from Members

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

Pros

"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."

"The product offers a community edition that is free of cost."

"Mule ESB is one of the best; it is easy to use and setup."

"The connectors help to connect with a variety of applications."

"There are many already defined endpoint components such as HTTP, JMS, FTP, etc., and these are the main tools for communicating with various services."

"Most of our use cases are for Salesforce. So, the connectors for Salesforce have been really helpful. They've made development two times faster."

"We have seen a significant improvement in our processes: Response time decreased significantly and integration of services became faster."

"I am impressed with the product's connectors and scalability."

More Mule ESB pros

"The solution basically conforms to our standards."

"The built-in connectors help with quick connectivity to the platforms, and we are using this for both our banking and insurance clients."

"It's a consolidated product; it works and it does its job pretty well."

"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."

"I like the user-friendly system and development of the service-oriented architecture."

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

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

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

More WSO2 Enterprise Integrator pros

Cons

"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 initial setup is not easy."

"Support, and with respect to licensing cost. Many of the customers feel that the licensing cost is much."

"It needs more samples. Also, the dependency on Maven should be removed."

"We would like to have a built-in logging framework in which we can do auditing."

"The stability could be improved."

"In my opinion, the real-time analytics part of Mule ESB is not up to the mark for the decision-making process."

"In India, particularly in the banking sector, clients do not prefer cloud solutions due to regulatory and compliance requirements."

More Mule ESB cons

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

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

"The customization can be a bit difficult."

"They should release upgrades more frequently."

"We had some challenges with the installation of this solution."

"The server is very specific and it is very difficult to get experience with it."

"If I have to buy software, then it becomes expensive for me."

"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

"You will not get any support from Mule ESB's team for the tool's community edition...You can get support with the licensed version of Mule ESB."

"The price of the Mule ESB commercial version is expensive. However, they have a free community version."

"The solution is expensive."

"Regarding licensing and pricing, I find it somewhat flexible. They are more flexible with larger customers compared to small and medium ones, as their licensing model depends on ports and other factors. Large customers benefit from more flexibility in implementation and renewal compared to smaller ones."

"This is expensive. In my next project, we had to go to other vendor."

"The pricing must be improved."

"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."

"The licensing is yearly, and there are additional fees for services."

More Mule ESB pricing and cost advice

"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 cost is better than IBM Cloud Pak."

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

"It is a low-cost solution."

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

"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

Financial Services Firm

14%

Manufacturing Company

10%

Computer Software Company

10%

Comms Service Provider

Financial Services Firm

13%

Comms Service Provider

Construction Company

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	23
Midsize Enterprise	6
Large Enterprise	38

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

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 ...

See all answers

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...

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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...

See all answers

What needs improvement with WSO2 Enterprise Integrator?

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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...

See all answers

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...

See all answers

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Product Reports

Buyer's Guide

Mule ESB

April 2026

Download Mule ESB product report

Buyer's Guide

WSO2 Enterprise Integrator

March 2026

Download WSO2 Enterprise Integrator product report

Overview

For companies looking to modernize and unlock the value of existing on-premises systems and applications, an enterprise service bus (ESB) architecture serves as a critical foundation layer for SOA. When deployed as an ESB, the Mule runtime engine of Anypoint Platform combines the power of data and application integration across legacy systems and SaaS applications, with a seamless path to the other capabilities of Anypoint Platform and the full power of API-led connectivity.

Salesforce

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

Ube, PacificComp, University of Witwatersrand, Justice Systems, Camelot

West

Buyer's Guide

Mule ESB vs. WSO2 Enterprise Integrator

April 2026

Free Report: Mule ESB vs. WSO2 Enterprise Integrator

Find out what your peers are saying about Mule ESB vs. WSO2 Enterprise Integrator and other solutions. Updated: April 2026.

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