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IBM WebSphere Application Server vs Microsoft .NET Framework comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 2025

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

IBM WebSphere Application S...
Ranking in Application Infrastructure
3rd
Average Rating
7.8
Reviews Sentiment
5.4
Number of Reviews
32
Ranking in other categories
Application Server (5th)
Microsoft .NET Framework
Ranking in Application Infrastructure
2nd
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
56
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2025, in the Application Infrastructure category, the mindshare of IBM WebSphere Application Server is 8.9%, down from 10.5% compared to the previous year. The mindshare of Microsoft .NET Framework is 5.4%, down from 6.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Market Share Distribution
ProductMarket Share (%)
Microsoft .NET Framework5.4%
IBM WebSphere Application Server8.9%
Other85.7%
Application Infrastructure
 

Featured Reviews

BharathirajaSukumar - PeerSpot reviewer
Efficient load balancing and the clustering, achieved by using the deployment manager, is valuable
I believe that the system is already good. However, for improvement or enhancement, it is user-friendly, but it could offer better choices on the front end for different aspects or options. Sometimes, I have to search extensively for features, as there are no upfront tabs. There is a lack of visible, easy, user-friendly, and straightforward options for the number of features.
Muhammad Qasim - PeerSpot reviewer
Has enabled building responsive multi-threaded applications while supporting rapid deployment workflows
Microsoft .NET Framework has already made significant improvements by becoming open source. Many developers are contributing to Microsoft .NET Framework, not just Microsoft itself. They have ported it to many platforms and allow a healthy ecosystem of open source tools. They have moved from Visual SourceSafe to supporting Git with Microsoft Visual Studio. Their IDE, Visual Studio Code, is open source and multi-platform. There are many third-party tools available, including AI-based tools such as Cursor and Bolt, which are forks of Visual Studio Code. Based on my understanding, I don't have any suggestions for improvement as they are already doing an excellent job.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"IBM WebSphere Application Server is the best in terms of scalability and performance, as well as the support for managing distributed transactions."
"IBM WebSphere Application Server is easy to use."
"High availability, alert management, and deployments are the most valuable features for us. We have the ND version so we can do deployments."
"IBM WebSphere Application Server is the ultimate product; there is nothing superior to IBM WebSphere Application Server, and while there are other options such as Tomcat, JBoss, and Oracle's solution, IBM WebSphere Application Server stands above them all."
"WebSphere Application Server's best features include the data subscription and connection viewer."
"IBM WAS is the backbone for our enterprise content management suite which delivers the primary processes for our customers. Without a good application server, it would be hard to provide a secure layer of midddleware upon which the other applications run. IBM WAS improves the stability of the entire solution and provides a high quality platform for running web-based solutions."
"I find IBM support to be very nice."
"The solution is very stable and robust."
"The solution is easy to use."
"The most valuable thing about Microsoft .NET Framework is that it is an enterprise-grade language and platform."
"The tool offers a lot of support, and there is a lot of knowledge material available, along with a lot of community groups."
"Given that it's cross-platform right now, where you can use it on Windows and Mac, that is the single most significant feature that has resulted in wider adoption of .NET."
"Microsoft .NET Framework reduces the cost of entry and enables the development of applications with mature and enterprise features, thereby lowering the entry barriers."
"When using Microsoft .NET Framework, you start writing the code internally."
"For us, it is better to remain under the umbrella of Microsoft."
"User-friendly and straightforward."
 

Cons

"Installing or configuring a WAS server instance as a Windows Service causes a lot of problems, especially when the server needs credentials to stop."
"The solution could improve the integration."
"When we run into memory or locking issues, we resort to using third-party tools. However, it would be preferable to have native tools for debugging this type of problem."
"The future of IBM WebSphere Application Server remains uncertain since it's based on Java 1.8 and Java 7."
"WebSphere Application Server doesn't have an automated deployment option, forcing us to use third-party tools like Jenkins UCD and Palo Automated Deployment."
"The availability of the solution needs improvement."
"The licensing could be improved, and I would like it to give the longevity of the lifespan of the visions. In the next release, I would like to be able to download and extract the files so that I can just use my application server."
"The security could be better."
"The .NET open source community could be larger."
"Some cloud features will not run in an old version of Microsoft .NET Framework easily or at all. Running on the cloud is complex."
"The product’s reliability needs improvement."
"Improvements are needed in .NET development, particularly in a backend scenario."
"Better integration with other tools to make the operation faster would be an improvement."
"There are performance constraints when multiple users are accessing the application and that consumes CPU resources."
"In the realm of Microsoft .NET Framework, particularly in the C# language, there have been significant developments that I find highly commendable. I am genuinely fascinated by the continuous evolution of the language, and staying abreast of the latest features in Azure is both challenging and enjoyable. Working with C# in Azure is particularly fantastic. I appreciate in .NET, as compared to Java, is the enforcement of types, providing a better experience in terms of technicalities. Additionally, the introduction of Roslyn in the past few years has brought about the concept of late .NET, which I find interesting and powerful. This allows for the transformation of symbolic code just before execution, eliminating the runtime decision-making process and enhancing efficiency. However, late .NET does come with a drawback – a delay in the last-minute computation when starting an executable. While some may find this less appealing in terms of instant responsiveness, especially in serverless cloud environments, the efficiency gained from executing strictly binary code is valuable. Despite potential drawbacks like the time required for activation, I view .NET favorably for its technical advancements and efficiency, especially in scenarios such as serverless cloud computing. It's essential to recognize the intricacies of how .NET processes code and the efficiency it brings, which some may overlook."
"Lacking in auto-scaling."
 

Pricing and Cost Advice

"My company is on a perpetual or permanent license agreement with IBM WebSphere Application Server. There's also a pay-per-use option, but customers rarely choose that option. Most of the customers are on the perpetual license deal that's all-inclusive. As the license cost is quite expensive, I'm rating it two out of five."
"The pricing is a little expensive."
"It's expensive."
"We pay around $200,000 annually."
"If your application is just a web app that does not need to scale big, you can obtain a single core license of WAS Express edition, which has almost the same features with limited processing cores. If you manage a very big application farm (i.e. need to run 10 or more WAS servers) it is better to get IBM WAS Hypervisor Edition."
"Room for improvement would only be in the licensing. As with all IBM products the licensing can be complex and expensive. Bargain well and try to get as much discount as possible. Discounts of 85% are possible. Without the discount, I think the product is overrated."
"WebSphere Application Server is expensive, so it may not be a good option for small companies."
"IBM WAS base is part of the deal when you purchase IBM FileNet P8 Content Engine."
"In the interim, there's no need to purchase videos for viewing. Microsoft has made significant moves in the .NET space, starting with their response in Visual Studio Code and now providing Visual Studio entirely for free. This is a notable shift from the past when we used to pay substantial amounts for technical subscriptions. Previously, a group of ten developers could cost several thousand dollars annually for licensing. However, the current trend is to offer these tools for free to maintain their dominance in the developer market. The market dynamics have changed, and now developers can freely download Visual Studio, making it a preferred choice over other paid options."
"It's an expensive solution"
"Considering the bigger picture, opting for the Microsoft ecosystem can be beneficial and it is priced well. When relying on entirely open-source solutions, you may encounter challenges associated with dealing with multiple vendors and potentially compromised security measures. However, it is important to note that Microsoft could enhance its performance when it comes to addressing critical security concerns."
"Do your homework. Consider the partnership program."
"We have an annual license, and we pay extra for extended support."
"The Microsoft .NET Framework is free of charge, without licensing cost."
"The support is an extra cost when purchasing the license. The price of the solution is overall reasonable and paid annually or every three years. Additionally, they have a monthly license. The cost is approximately $1,000 per user."
"Microsoft .NET Framework is very cost-effective for corporate users."
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Top Industries

By visitors reading reviews
Financial Services Firm
34%
Computer Software Company
10%
Government
7%
Insurance Company
6%
Construction Company
15%
Real Estate/Law Firm
13%
Computer Software Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise6
Large Enterprise23
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise9
Large Enterprise23
 

Questions from the Community

What do you like most about IBM WebSphere Application Server?
Network Deployment is the most useful feature for scalability. It has many features within the standard WebSphere Application Server edition.
What is your experience regarding pricing and costs for IBM WebSphere Application Server?
In Korea, when you buy IBM iOS, the WebSphere base version is included with iOS. That means no additional cost.
What needs improvement with IBM WebSphere Application Server?
I find the server okay, however, using the Maker instance, the Moving instance, and the Change instance is a little bit complicated without WebSphere knowledge.
What do you like most about Microsoft .NET Framework?
Microsoft .NET Framework continually innovates, particularly in Visual Studio, which focuses on improving languages, debugging, and .NET functionality.
What is your experience regarding pricing and costs for Microsoft .NET Framework?
I don't know about pricing. I'm paying for Visual Studio, even though I'm not using the new version yet. Prices can always be better, but I think for the environment provided, the prices are accept...
What needs improvement with Microsoft .NET Framework?
Since the version I'm using is many years old, they have been continuously improving. They are always adding features to the language and framework, but I cannot comment from a very old version on ...
 

Also Known As

WebSphere Application Server
MS .NET Framework
 

Overview

 

Sample Customers

TalkTalk, Property management group, E.SUN Bank, Ohio National Financial Services, Aviarc, Cincom Systems, FJA-US, D+H, Staples, Michigan Municipal League
Curtin University, Rockwell Automation, Aruba Networks, Insurity Inc., City of Barcelona, Pennsylvania DCNR, University of Petroleum and Energy Studies, A1 Telekom Austria AG, Eastman Chemical Company
Find out what your peers are saying about IBM WebSphere Application Server vs. Microsoft .NET Framework and other solutions. Updated: November 2025.
872,846 professionals have used our research since 2012.