IBM Open Liberty vs IIS PHP Windows comparison

IBM and Supported Images are both solutions in the Application Server category. IBM is ranked #7 with an average rating of 10.0, while Supported Images is ranked #9 with an average rating of 9.3. IBM holds a 4.9% mindshare in AppS, compared to Supported Images’s 0.5% mindshare. Additionally, 100% of IBM users are willing to recommend the solution, compared to 100% of Supported Images users who would recommend it.

IBM Open Liberty

Read 2 IBM Open Liberty reviews

2,113 Views
634 Comparison Views

100% willing to recommend

IIS PHP Windows

Read 4 IIS PHP Windows reviews

1,124 Views
67 Comparison Views

100% willing to recommend

IBM Open Liberty

IIS PHP Windows

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between IBM Open Liberty and IIS PHP Windows based on real PeerSpot user reviews.

Find out in this report how the two Application Server solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed IBM Open Liberty vs. IIS PHP Windows Report (Updated: June 2026).

Buyer's Guide

IBM Open Liberty vs. IIS PHP Windows

June 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

IBM Open Liberty

Ranking in Application Server

7th

Average Rating

10.0

Reviews Sentiment

2.8

Number of Reviews

Ranking in other categories

No ranking in other categories

IIS PHP Windows

Ranking in Application Server

9th

Average Rating

9.2

Reviews Sentiment

5.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of June 2026, in the Application Server category, the mindshare of IBM Open Liberty is 4.9%, up from 0.8% compared to the previous year. The mindshare of IIS PHP Windows is 0.5%. It is calculated based on PeerSpot user engagement data.

Application Server Mindshare Distribution
Product	Mindshare (%)
IBM Open Liberty	4.9%
IIS PHP Windows	0.5%
Other	94.6%

Application Server

Featured Reviews

FABIO LUIS VELLOSO DA SILVA

Partner at SouJava

Has enabled flexible deployment of modular services with high availability and smooth dynamic updates

The best features of IBM Open Liberty are the implementation of MicroProfile and Jakarta EE, along with fault tolerance and high availability. It's easy to use and deploy new features. The profile is easy to configure and set up features. For example, using fault tolerance from MicroProfile or using servlets or JAX-RS allows for easy configuration and creation of modular applications. The configuration is modular. The main point for us in this project was high availability, high performance, and the implementation of MicroProfile and Jakarta EE. We utilized the modular architecture of IBM Open Liberty by creating different microservices using different environments. We created different configurations for different services using the configuration of IBM Open Liberty. This was very beneficial. We created different environments only by changing the configuration, depending on the functionality we needed. It was good and very flexible for us. I used the dynamic updates feature of IBM Open Liberty and different configurations in different services and servers, based on the functionality we provided for our clients. The flexibility to create different services in different environments using IBM Open Liberty was important. The high availability is guaranteed by the architecture of IBM Open Liberty, Java, and MicroProfile. The architecture guaranteed high availability, and the flexibility comes from being able to configure needed features. There's no need to load all WebSphere or functionalities in all environments. I can configure it and create a more highly available and scalable process. I implemented monitoring tools for IBM Open Liberty using Grafana and OpenTracing using the functionalities from MicroProfile and IBM Open Liberty. The monitoring tools helped with managing system performance.

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Gaurav-Bansal

Support Engineer at a tech vendor with 5,001-10,000 employees

Hosting client blogs has become straightforward but resource usage still needs improvement

IIS PHP Windows has positively impacted my organization by helping to deploy customer websites that have very small budgets, allowing the organization to assist those clients, which builds trust with them. It enables the organization to help them run their small websites, and while some clients had bigger projects, they also wanted their small websites to run, such as a personal blog. Client satisfaction was high because a Windows server can be monitored, and the customer's websites could remain up and running all the time. If something happens and the application crashes, we could simply grab the logs from the event viewer to check memory limits and investigate what is happening. Additionally, the client could perform some of the management using the GUI management interface in IIS.

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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

"It is a stable solution compared to other vendors."

"The flexibility to create different services in different environments using IBM Open Liberty was important."

"IIS PHP Windows has positively impacted my organization by helping to deploy customer websites that have very small budgets, allowing the organization to assist those clients, which builds trust with them."

"If you want to host your PHP or Laravel-based application in Windows, you can definitely use this extension, and using this extension you can host your PHP or Laravel application in IIS and it will have super speed."

"IIS PHP Windows impacts my organization positively because my applications perform very well here when compared with XAMPP."

"In my experience, the best features IIS PHP Windows offers include allowing us to host the PHP application with better performance compared to XAMPP, which we were previously using because XAMPP was giving slow performance."

Cons

"Its support documentation could have detailed information on database integration."

"To improve IBM Open Liberty, more integration with Kafka and message systems, and asynchronous messaging would be beneficial."

"I chose a rating of seven out of ten because IIS PHP Windows is good for small enterprises with manageable aspects, but it has very high resource usage and requires a Windows server license, contributing to the overall cost."

Pricing and Cost Advice

"It is less costly than one of its competitors."

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

43%

Computer Software Company

Insurance Company

Manufacturing Company

Construction Company

49%

Comms Service Provider

10%

Healthcare Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What needs improvement with Open Liberty?

To improve IBM Open Liberty, more integration with Kafka and message systems, and asynchronous messaging would be beneficial. Having more integration with Kafka, Mongo, and middleware systems that ...

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What is your primary use case for Open Liberty?

I used IBM Open Liberty for an application for financial services using IBM Open Liberty and MicroProfile to process data for financial services work.

See all answers

What advice do you have for others considering Open Liberty?

I used IBM Open Liberty in the past in a project, but today I'm not using it anymore. I had a good experience working with it in a financial services company. This was very beneficial. My review ra...

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What needs improvement with IIS PHP Windows?

I think IIS PHP Windows can still improve, specifically in making the user interface and integration better, as there is visible scope for improvement. We can make it more robust if we continue upg...

See all answers

What is your primary use case for IIS PHP Windows?

My main use case for IIS PHP Windows is to install client applications based on IIS and PHP-based applications, and manage those applications on the Windows environment. A quick specific example of...

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What advice do you have for others considering IIS PHP Windows?

I rate IIS PHP Windows nine out of ten. I chose nine out of ten because there is still a scope for improvement, and achieving a perfect ten means reaching a standard they should continue working to...

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Comparisons

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Compared 42% of the time

Tomcat vs IBM Open Liberty

Compared 15% of the time

IBM WebSphere Liberty vs IBM Open Liberty

Compared 14% of the time

Oracle WebLogic Server vs IBM Open Liberty

Compared 5% of the time

Red Hat JBoss Enterprise Application Platform (EAP) vs IBM Open Liberty

Compared 5% of the time

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F5 Distributed Cloud Services vs IIS PHP Windows

Compared 59% of the time

Adobe PDF Services API vs IIS PHP Windows

Compared 41% of the time

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Product Reports

Buyer's Guide

Application Server

May 2026

Download IBM Open Liberty product report

Buyer's Guide

Application Server

May 2026

Download IIS PHP Windows product report

Overview

IBM Open Liberty is a highly adaptable and lightweight Java runtime, designed to cater to modern cloud-native applications. Its flexibility and commitment to open source makes it a valuable asset for developers seeking ease of deployment and scalability.

IBM Open Liberty stands out for its ease of integration into cloud environments and its emphasis on developer productivity. It permits quick iterations with minimal overhead, thanks in part to its support for MicroProfile and Jakarta EE. This allows for streamlined deployment processes, making contemporary software development more efficient.

What are the valuable features of IBM Open Liberty?

Lightweight Server: Minimizes resource consumption, enabling faster performance.
Dev Mode: Provides a real-time feedback loop, simplifying development cycles.
MicroProfile Support: Assists in building microservices architecture effectively.
Jakarta EE Support: Ensures compatibility with enterprise standards.

What are the benefits or ROI to consider?

Scalability: Adapts easily to increasing workloads while maintaining performance.
Cost Efficiency: Reduces operational costs by optimizing server usage.
Developer Productivity: Accelerates development through intuitive tooling.
Cloud Readiness: Facilitates seamless integration with cloud platforms.

IBM Open Liberty finds applications across multiple industries. In finance, it supports robust transactional systems. In telecommunications, it enhances service delivery with reliable microservices infrastructure. Health care benefits from its compliance capabilities, facilitating secure data management and faster application delivery.

IBM

IIS PHP Windows offers a robust platform for running PHP applications on Windows servers, merging the reliability of IIS with PHP's versatility, providing an efficient environment for developers.

This combination is ideal for businesses seeking to leverage PHP applications on a Windows ecosystem. By utilizing the Windows server's security and PHP's flexibility, users can run complex web applications efficiently. IIS PHP Windows optimizes the integration, providing seamless support that enhances performance and manages significant web traffic with ease.

What features define IIS PHP Windows?

FastCGI Support: Integrates PHP applications quickly and effectively.
Application Request Routing: Improves performance through load balancing.
Security: Advanced safeguards with Windows authentication.
Monitoring Tools: Provides comprehensive diagnostics and logging capabilities.

What benefits and ROI should users expect?

Increased Performance: Supports high-traffic applications efficiently.
Cost Savings: Reduces downtime with robust, reliable infrastructure.
Scalability: Adapts easily to growing business needs.
Improved Security: Enhances application safety with integrated measures.

In industries like finance and healthcare, IIS PHP Windows is employed for its powerful integration capabilities, ensuring secure environments for sensitive data while optimizing application performance. Its compatibility with legacy systems is essential for businesses transitioning to modern frameworks without compromising functionality.

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Buyer's Guide

IBM Open Liberty vs. IIS PHP Windows

June 2026

Free Report: IBM Open Liberty vs. IIS PHP Windows

Find out what your peers are saying about IBM Open Liberty vs. IIS PHP Windows and other solutions. Updated: June 2026.

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