Mule ESB vs WSO2 Enterprise Integrator comparison

Salesforce and WSO2 are both solutions in the Enterprise Service Bus (ESB) category. Salesforce is ranked #1 with an average rating of 8.3, while WSO2 is ranked #7 with an average rating of 8.0. Salesforce holds a 17.0% mindshare in E, compared to WSO2’s 6.6% 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 54 Mule ESB reviews

3,930 Views
3,026 Comparison Views

87% willing to recommend

WSO2 Enterprise Integrator

Read 20 WSO2 Enterprise Integrator reviews

2,594 Views
882 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: March 2026).

Buyer's Guide

Mule ESB vs. WSO2 Enterprise Integrator

March 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)

1st

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 (31st)

Mindshare comparison

As of March 2026, in the Enterprise Service Bus (ESB) category, the mindshare of Mule ESB is 17.0%, down from 21.0% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.6%, up from 4.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Service Bus (ESB) Mindshare Distribution
Product	Mindshare (%)
Mule ESB	17.0%
WSO2 Enterprise Integrator	6.6%
Other	76.4%

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.

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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

"Mule Expression Language"

"The setup is straightforward."

"Easy connectivity and easy integration."

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

"The most valuable features are the connectors, DataWeave, and the way it simplifies the application development and deployable files."

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

"I like that it's user-friendly. Compared to other ESBs, I find it easier to use. I like it better than other ESBs. I like the connectors, which make calling the APIs through the routers easier."

"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."

More Mule ESB pros

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

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

"The stability is excellent."

"The customer service executives are very responsive."

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

"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."

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

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

More WSO2 Enterprise Integrator pros

Cons

"Limitation on external subscribers to listen to the messages on the bus."

"MuleSoft ESB is a wonderful product. However, in order to help the developers utilize it extensively, I would suggest adding some scenario-based and audio-visual tutorials."

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

"One area that could be improved is the way that policies are propagated when APIs are moved from one environment to another. It's an issue, but when you develop and test the rest APIs in a lower environment and need to move them, there's a propagation process. This process moves certain aspects of the APIs, like the basic features. But when we move them, the policies don't always move with them. The policies should be able to move so we don't have to redo them manually. There are some APIs we use, but it's a bit tedious."

"The solution isn't as stable as we'd like it to be. There are some ongoing issues and therefore Mule has to provide frequent patches. Mule's core IP should be more stable overall."

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

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

"The payment system needs improvement."

More Mule ESB cons

"The administration side is complex and could use significant improvements to enhance the solution's functionality."

"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."

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

"The customization can be a bit difficult."

"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."

"You cannot include the validation of XPath."

"I would like to see better documentation for the open-source version."

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

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

"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."

"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."

"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."

"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 pricing must be improved."

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

More Mule ESB pricing and cost advice

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

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

"It is a low-cost solution."

"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."

"The cost is better than IBM Cloud Pak."

"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

Financial Services Firm

14%

Manufacturing Company

11%

Computer Software Company

10%

Comms Service Provider

Financial Services Firm

Comms Service Provider

Computer Software Company

Government

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...

See all answers

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 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

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Compared 5% of the time

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Compared 4% of the time

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Compared 10% of the time

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Compared 8% of the time

Boomi iPaaS vs WSO2 Enterprise Integrator

Compared 6% of the time

Red Hat Fuse vs WSO2 Enterprise Integrator

Compared 5% of the time

TIBCO BusinessWorks vs WSO2 Enterprise Integrator

Compared 5% of the time

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Product Reports

Buyer's Guide

Mule ESB

March 2026

Download Mule ESB product report

Buyer's Guide

WSO2 Enterprise Integrator

February 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

March 2026

Free Report: Mule ESB vs. WSO2 Enterprise Integrator

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