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.

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

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

"Mule ESB helps a lot with our microservice architecture that we're trying to build, and it is still our go-to technology when it comes to that, so it's very promising for us."

"This tool has exceptional API management and integration connectors in addition to multiple out of the box connectors."

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

"The setup is straightforward."

"What Mule provides out-of-box is a sufficient product."

"The connectivity the solution provides is excellent. There are often too many systems that we have to integrate and this helps with that."

"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."

More Mule ESB pros

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

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

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

"The drag-and-drop features for connectors are very valuable."

"The solution's customer service is good."

"The installation process is easy."

"The stability is excellent."

"The customer service executives are very responsive."

More WSO2 Enterprise Integrator pros

Cons

"From the product perspective, it was sometimes hard to manage the dependencies. When we had to add dependencies on a couple of different packages, it was sometimes confusing. It was hard to update them with Anypoint Studio, as well as with MuleSoft. There were challenges with that. So, that's one of the areas that could be improved."

"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 price of Mule ESB could improve."

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

"In order to meet the new trend of active metadata management, we need intelligent APIs that can retrieve new data designs and trigger actions over new findings without human intervention."

"Lacking some connectors that could be included."

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

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

More Mule ESB cons

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

"They should release upgrades more frequently."

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

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

"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."

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

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

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

More WSO2 Enterprise Integrator cons

Pricing and Cost Advice

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

"The pricing must be improved."

"The solution is expensive."

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

"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."

"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."

"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."

More Mule ESB pricing and cost advice

"It is a low-cost solution."

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

"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."

"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

Computer Software Company

14%

Financial Services Firm

14%

Manufacturing Company

11%

Comms Service Provider

Financial Services Firm

11%

Computer Software Company

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 ...

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 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 26% of the time

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IBM B2B Integrator vs Mule ESB

Compared 7% of the time

IBM Sterling B2B Integration Services vs Mule ESB

Compared 6% of the time

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Compared 10% of the time

MuleSoft Anypoint Platform vs WSO2 Enterprise Integrator

Compared 7% of the time

Azure Data Factory vs WSO2 Enterprise Integrator

Compared 6% of the time

Oracle Service Bus vs WSO2 Enterprise Integrator

Compared 5% of the time

Red Hat Fuse vs WSO2 Enterprise Integrator

Compared 5% of the time

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Product Reports

Buyer's Guide

Mule ESB

January 2026

Download Mule ESB product report

Buyer's Guide

WSO2 Enterprise Integrator

January 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

December 2025

Free Report: Mule ESB vs. WSO2 Enterprise Integrator

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