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Azul Zulu vs Microsoft .NET Framework comparison

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Comparison Buyer's Guide

Executive Summary

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

Azul Zulu
Ranking in Application Infrastructure
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
3
Ranking in other categories
AI Customer Experience Personalization (25th), AI Content Creation (12th)
Microsoft .NET Framework
Ranking in Application Infrastructure
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
57
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Application Infrastructure category, the mindshare of Azul Zulu is 3.6%, down from 4.0% compared to the previous year. The mindshare of Microsoft .NET Framework is 4.1%, down from 5.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
Microsoft .NET Framework4.1%
Azul Zulu3.6%
Other92.3%
Application Infrastructure
 

Featured Reviews

BasilJiji - PeerSpot reviewer
System engineer at a retailer with 10,001+ employees
Standardized our Java estate and have reduced licensing costs while maintaining strong support
Azul Zulu's ability to allow us to standardize our Java estate on a single and well-supported platform stands out as one of its best features. This standardization simplifies our compliance audits and ensures all our applications receive timely security updates.Azul Zulu positively impacts our organization by providing a platform that allows us to standardize Java on a well-supported platform. Without the high cost associated with other proprietary vendors, Azul Zulu provides an excellent platform for running our applications.
Muhammad Qasim - PeerSpot reviewer
Solutions Architect at Diyar United Company
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

"We've had no issues with stability."
"We achieved specific outcomes from using Azul Zulu by reducing our Java licensing and support costs by approximately 70% when compared to our previous Oracle contract."
"I joined this project which had already been underway for approximately six months, and in two months, I refactored the whole project and wrote it, and it is functional."
"Overall, we are very satisfied with using this platform for application development."
"Basically, .NET is simply is the easiest programming language to use, based on my experience."
"With Microsoft .NET, the dynamic web content handling became easier and the Microsoft world of web became more programmable with use of reusable and redistributable web components and systems (building blocks)."
"The new .NET Core has those middlewares, which are awesome from a security standpoint. With the old Framework or the newer Framework, middleware is basically an event pipeline. You configure and register it, and it handles things centrally. A simple example is logging. With the old Framework, you needed to try/catch blocks everywhere. Here, you configure the logging handler once, and it captures exceptions across the application. I really like the middleware pattern."
"The solution is not limited in storage, is customizable and simple to use."
"The web development and Microsoft Windows service development capabilities are among the most valuable features offered by the Microsoft .NET Framework. This language platform is highly user-friendly, with plenty of online examples and information available, as well as a robust development environment."
"Microsoft .NET Framework reduces the cost of entry and enables the development of applications with mature and enterprise features, thereby lowering the entry barriers."
"The addition of generics to handle common functionality across types, and the more recent upgrade of the dataset to the Entity Framework, has cut development time drastically, while increasing quality and confidence between builds."
 

Cons

"I think Azul Zulu can be improved by always thinking about productivity, as most languages tend to evolve in that direction."
"It needs a better update daemon. At this time the process is manual and could be an issue on multiple desktop deployments."
"Improvements for Azul Zulu could include more automated tools for unused code visibility integrated directly into the standard portal to help further optimize our cloud footprints."
"There may be some topics regarding connectivity and management of certificates that require attention. We are currently facing some issues."
"There are certain tools, such as Oracle, that this solution does not integrate well with. The performance is slow and the connection takes a long time."
"You need to have the technical expertise to use this product."
"Their system is very vast. I have spent 12 years here, and I can definitely say there is still a lot of scope for improvement."
"In my opinion, this solution can be improved by providing out-of-the-box support for different types of libraries."
"The integration with DevOps tools, such as Azure DevOps, Jira, and GitLab, would be a valuable addition."
"The ASP.NET framework is no longer supported because the new .NET framework has taken over so any core changes require us to redo projects."
"The solution has difficulty integrating with other products. There are no such difficulties if you have the same platform, hardware, and operating system."
 

Pricing and Cost Advice

Information not available
"If you want to develop an enterprise-level application, you have to purchase the enterprise-level development license."
"Microsoft .NET Framework is a free, open-source solution."
"Do your homework. Consider the partnership program."
"The pricing could be cheaper."
"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."
"We have an annual license, and we pay extra for extended support."
"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."
"The product and support for this solution are free for everyone."
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Top Industries

By visitors reading reviews
Financial Services Firm
27%
Construction Company
12%
Manufacturing Company
10%
Government
8%
Construction Company
19%
Outsourcing Company
14%
Financial Services Firm
9%
Real Estate/Law Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise10
Large Enterprise23
 

Questions from the Community

What needs improvement with Azul Zulu?
Improvements for Azul Zulu could include more automated tools for unused code visibility integrated directly into the standard portal to help further optimize our cloud footprints. The other core J...
What is your primary use case for Azul Zulu?
Azul Zulu serves as our primary Java runtime, providing a stable, 100% open-source, and certified solution for our production microservices. We utilize it to ensure cross-platform compatibility acr...
What advice do you have for others considering Azul Zulu?
My advice for others looking into using Azul Zulu is to perform a pilot migration with one non-critical application first. You will likely find that it is truly a drop-in replacement, which will gi...
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?
The Visual Studio ID that we are using requires more RAM and IP. Sometimes it goes high on this phone exchange, and it crashes sometimes. We have to review this with Microsoft itself. That is somet...
What is your primary use case for Microsoft .NET Framework?
We have been using the Viasat QoS, which is a web application platform. We are using a part of this web application. Regarding Nexity, we are not getting whatever they are offering, but it is fine ...
 

Also Known As

No data available
MS .NET Framework
 

Overview

 

Sample Customers

Microsoft, Kyocera, OKI, Alcatel-Lucent Enterprise, Voya Financial
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 Azul Zulu vs. Microsoft .NET Framework and other solutions. Updated: September 2026.
914,109 professionals have used our research since 2012.