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 8.0, while WSO2 is ranked #7 with an average rating of 8.0. Salesforce holds a 15.0% mindshare in E, compared to WSO2’s 5.9% 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

3,601 Views
2,665 Comparison Views

87% willing to recommend

WSO2 Enterprise Integrator

Read 20 WSO2 Enterprise Integrator reviews

2,011 Views
724 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: December 2025).

Buyer's Guide

Mule ESB vs. WSO2 Enterprise Integrator

December 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

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 (32nd)

Mindshare comparison

As of January 2026, in the Enterprise Service Bus (ESB) category, the mindshare of Mule ESB is 15.0%, down from 21.6% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.9%, up from 4.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Service Bus (ESB) Market Share Distribution
Product	Market Share (%)
Mule ESB	15.0%
WSO2 Enterprise Integrator	5.9%
Other	79.1%

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.

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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

"The cloud and integration abilities are most useful allowing us to use applications such as Salesforce and DataWeave."

"Mule ESB has a user-friendly design, and everything is in one place. The API and architecture are popular right now. Also, MuleSoft has a large and supportive online community."

"Mule ESB is a very easy-to-use and user-friendly solution."

"Mule ESB platform provided is very cohesive, and that's why it's leading in the Gartner quadrant as well and it's one of the best integration products as of now, especially when it comes to APIs, which has helped integration projects, particularly in terms of control and efficiency."

"The solution improved my company by modernizing the way we offer services and improving the user experience."

"The most powerful feature is DataWeave, which is a powerful language where data can be transformed from one form into another."

"The most beneficial features of Mule ESB are the control plane and runtime plane."

"We can use Java expressions anywhere in the flow."

More Mule ESB pros

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

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

"The solution's customer service is good."

"It was mostly easy to set up the product."

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

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

"The solution basically conforms to our standards."

More WSO2 Enterprise Integrator pros

Cons

"The initial setup is not easy."

"MuleSoft is not so strong in method-based integration, so they're not so functional in that regard."

"Lacking some connectors that could be included."

"The current version will not be supported for much longer."

"Mule ESB is more into the latest REST APIs, not much into the SOAP web services. Developing is all about web services and not easy with Mule."

"MuleSoft isn't as mature as some other integration technologies out there like IBM WebSphere. There's room for growth, and MuleSoft is working toward that."

"It's not easy to troubleshoot and we still can't make it work."

"The Anypoint platform consumes a lot of memory, and it would be great for developers if it were more lightweight."

More Mule ESB cons

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

"The customization can be a bit difficult."

"They should introduce better pricing for small companies."

"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."

"You cannot include the validation of XPath."

"WSO2 libraries are not mature enough. For example, if you want to integrate with Kafka using its Kafka library, it often has many bugs."

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

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

"The solution is expensive."

"Plan your licensing model (cloud or on-premises or hybrid) that will allow seamless integration with new partners."

"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."

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

"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."

"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."

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

"This product is expensive, but it does offer value for money."

More Mule ESB pricing and cost advice

"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."

"I rate the product price a six on a scale of one to ten, where one is low price and ten is high price."

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Top Industries

By visitors reading reviews

Computer Software Company

16%

Financial Services Firm

14%

Manufacturing Company

11%

Comms Service Provider

Financial Services Firm

12%

Computer Software Company

10%

Comms Service Provider

Insurance 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 ...

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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...

See all answers

What do you like most about Mule ESB?

The solution's drag-and-drop interface and data viewer helped us quite a lot.

See all answers

What do you like most about WSO2 Enterprise Integrator?

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

See all answers

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...

See all answers

What needs improvement with WSO2 Enterprise Integrator?

See all answers

Comparisons

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Compared 22% of the time

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Compared 11% of the time

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Compared 9% of the time

IBM B2B Integrator vs Mule ESB

Compared 7% of the time

IBM DataPower Gateway vs Mule ESB

Compared 5% of the time

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IBM Integration Bus vs WSO2 Enterprise Integrator

Compared 10% of the time

MuleSoft Anypoint Platform vs WSO2 Enterprise Integrator

Compared 7% of the time

Oracle Service Bus vs WSO2 Enterprise Integrator

Compared 6% of the time

Azure Data Factory vs WSO2 Enterprise Integrator

Compared 6% of the time

Red Hat Fuse vs WSO2 Enterprise Integrator

Compared 6% of the time

More WSO2 Enterprise Integrator Competitors

Product Reports

Buyer's Guide

Mule ESB

December 2025

Download Mule ESB product report

Buyer's Guide

WSO2 Enterprise Integrator

December 2025

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

December 2025

Free Report: Mule ESB vs. WSO2 Enterprise Integrator

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