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 17.6% mindshare in E, compared to WSO2’s 5.6% 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 52 Mule ESB reviews

3,848 Views
2,886 Comparison Views

87% willing to recommend

WSO2 Enterprise Integrator

Read 20 WSO2 Enterprise Integrator reviews

1,766 Views
795 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: September 2025).

Buyer's Guide

Mule ESB 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

Mule ESB

Ranking in Enterprise Service Bus (ESB)

2nd

Average Rating

8.2

Reviews Sentiment

6.7

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 October 2025, in the Enterprise Service Bus (ESB) category, the mindshare of Mule ESB is 17.6%, down from 21.9% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.6%, up from 5.3% 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	17.6%
WSO2 Enterprise Integrator	5.6%
Other	76.8%

Enterprise Service Bus (ESB)

Featured Reviews

Maharsh-Kapadia

Enterprise Integration Architect at Tata Consultancy

Transforms enterprise integration with comprehensive platform and excellent support

The best features of this solution are that everything we get into a single platform, whether it's integration, API, or data modeling; everything is available in one platform. It's a hybrid, including cloud and on-premise solutions with good connectivity and good connectors. From the benefits of using Mule ESB, we could reduce the manual tasks to 50% in one to two years. The cost is still something we are trying to make lower because we see some advantages when we move from point-to-point integration to API-led connectivity. We have seen a lot of reusable assets, so the cost is reduced. Ultimately, we want to see how it's transformed into business revenue; that's what we are still looking into.

Read full review

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.

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

"For complex cases, we employ the SSLi engine, whereas for simpler ones like healthcare or response data, such as EDI 270 or 271. We prefer to use an external XRT engine instead of handling it within the ESB for ease of management."

"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."

"It is easily deployable and manageable. It has microservices-based architecture, which means that you can deploy the solution based on your needs, and you can manage the solution very easily."

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

"Once it is started, we don't see any problems on a day to day basis."

"The product is very stable."

"The most valuable feature is that it's programmer-friendly, so it's very easy to develop APIs."

"Everything runs in Java, which is a useful feature."

More Mule ESB pros

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

"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."

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

"The stability is excellent."

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

"The solution's customer service is good."

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

"The installation process is easy."

More WSO2 Enterprise Integrator pros

Cons

"In an upcoming release, I would like to see more additional concept for exception handling, batch processing, and increased integration with other application."

"Documentation is cryptic, product releases are far too frequent, and upgrades become troublesome."

"Mule ESB could be more user-friendly. I think users must learn about the architecture before they start coding. The price could be better. In the next release, I would like to see an EDIFACT integration."

"It should have some amount of logging."

"I cannot say that installation with Kubernetes needs to be improved to be less tricky, but more information is needed from MuleSoft. They do not help much with Kubernetes, so we should have a person who is well-versed in Kubernetes to handle this."

"The stability could be improved."

"Community editions need more attention."

"There are limitations with the subscription model that comes with the product."

More Mule ESB cons

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

"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."

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

"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 customization can be a bit difficult."

"There are a lot of security settings that when you apply you have to re-apply again every time you modify a setting. It is something that really needs to be enhanced."

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

"The various features and components for this solution are no longer free."

"The solution is expensive."

"The pricing must be improved."

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

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

"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."

"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."

"Mule ESB is an expensive solution."

More Mule ESB pricing and cost advice

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

"It is a low-cost solution."

"The cost is better than IBM Cloud Pak."

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

"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 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

Computer Software Company

16%

Financial Services Firm

15%

Manufacturing Company

11%

Comms Service Provider

Financial Services Firm

16%

Computer Software Company

15%

Government

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	23
Midsize Enterprise	6
Large Enterprise	36

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?

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 ...

See all answers

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Compared 14% of the time

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Compared 11% of the time

Spring Cloud Data Flow vs WSO2 Enterprise Integrator

Compared 8% of the time

webMethods.io vs WSO2 Enterprise Integrator

Compared 8% of the time

Azure Data Factory vs WSO2 Enterprise Integrator

Compared 7% of the time

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Product Reports

Buyer's Guide

Mule ESB

September 2025

Download Mule ESB product report

Buyer's Guide

WSO2 Enterprise Integrator

September 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

September 2025

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