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 (32nd)

Mindshare comparison

As of April 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.

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

"Easy connectivity and easy integration."

"MuleSoft ESB is an ideal choice for us and makes it easier for the developers to deliver complex projects with the best quality."

"Technical support is superb."

"The most valuable feature for Mule is the number of connectors that are available."

"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."

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

"The most valuable features of Mule ESB are its ease of use, documentation, ease to adapt to newer security and vulnerabilities, and a lot of help available. Additionally, there is a lot of flexibility, many patches available, and they provide APIs. They are a market standard."

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

More Mule ESB pros

"The solution's customer service is good."

"The solution basically conforms to our standards."

"The most valuable aspect of the solution is the integration between core banking and other systems."

"From the capabilities and functional possibility and anything else technical, it is a very well-done product, I have to say."

"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."

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

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

"The customer service executives are very responsive."

More WSO2 Enterprise Integrator pros

Cons

"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."

"Mule ESB isn't as secure as IBM. Financial companies go with IBM for that reason."

"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."

"We would like the ability to use our own code. This would allow us to develop customizations with ease. Additionally, it would be nice to have more analytics or insights on the exchanged information between databases."

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

"Improvements could be made in performance."

"The CloudHub offering requires some time to mature."

"The stability could be improved."

More Mule ESB cons

"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 configuration of the product is not an easy task for everyone."

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

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

"You cannot include the validation of XPath."

"They should release upgrades more frequently."

"The customization can be a bit difficult."

"The integration capabilities need to be improved."

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

"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."

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

"The pricing must be improved."

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

"I think the price is very high. If you use TIBCO BW, the license is for the CPU usage, then the IPS, and support. I also think the license for the product is a one-time expense."

"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."

"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."

More Mule ESB pricing and cost advice

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

"It is a low-cost solution."

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

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

"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."

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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

Construction Company

Computer Software 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...

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 10% of the time

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Compared 8% of the time

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Compared 7% of the time

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Compared 5% of the time

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Compared 4% 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

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

March 2026

Free Report: Mule ESB vs. WSO2 Enterprise Integrator

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