A powerful, modular, & lightweight application server that helps you build amazing applications.

Now available: WildFly 31.0.1 Final

Save the date!

We're hosting a conference on
Wednesday, March 6

WildFly Mini Conference


Configuration in WildFly is centralized, simple and user-focused. The configuration file is organized by subsystems that you can easily comprehend and no internal server wiring is exposed. All management capabilities are exposed in a unified manner across many forms of access. These include a CLI, a web based administration console, a native Java API, an HTTP/JSON based REST API, and a JMX gateway. These options allow for custom automation using the tools and languages that best fit your needs.


WildFly does classloading right. It uses JBoss Modules to provide true application isolation, hiding server implementation classes from the application and only linking with JARs your application needs. Visibility rules have sensible defaults, yet can be customized. The dependency resolution algorithm means that classloading performance is not affected by the number of versions of libraries you have installed.


WildFly takes an aggressive approach to memory management. The base runtime services were developed to minimize heap allocation by using common cached indexed metadata over duplicate full parses, which reduces heap and object churn. The administration console is 100% stateless and purely client driven. It starts instantly and requires zero memory on the server. These optimizations combined enable WildFly to run with stock JVM settings and also on small devices while leaving more headroom for application data and supports higher scalability.

Standards Based

WildFly implements the latest in enterprise Java standards from Jakarta EE and Eclipse MicroProfile. These improve developer productivity by providing rich enterprise capabilities in easy to consume frameworks that eliminate boilerplate and reduce technical burden. This allows your team to focus on the core business needs of your application. By building your application on standards you retain the flexibility to migrate between various vendor solutions.

Latest News

How to contribute to WildFly

Welcome to the world of WildFly contributions, a place where your skills can make a real impact! If you’re eager to dive in but not sure where to start, this guide is here to simplify the process for you. Whether you’re new to open source or just getting acquainted with WildFly, we’ve got your back. In the upcoming sections, we’ll walk you through the essential steps, providing insights into the WildFly ecosystem and equipping you...

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Vlog: Securing WildFly Apps with Okta on OpenShift

Learn how to secure applications deployed to WildFly on OpenShift with the Okta OpenID provider.

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WildFly 31.0.1 is released!

WildFly 31.0.1.Final is now available for download. It’s been about five weeks since the WildFly 31 release, so we’ve done a small bug fix update, WildFly 31.0.1. This includes an update to WildFly Preview. The following issues were resolved in 31.0.1: Bugs [WFLY-18700] - java.lang.OutOfMemoryError: Direct buffer memory [WFLY-18959] - Mail Quickstart maven dependencies have wrong scope [WFLY-18969] - Give the Apache Lucene module access to jdk.unsupported [WFLY-19010] - SSL Client context not loaded with...

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WildFly Mini Conference

The WildFly team organizes a conference. The conference will take place on Wednesday, March 6, 2024. It starts at 14:00 UTC and includes four sessions with topics related to WildFly. All sessions will be streamed live on YouTube. For more information, please take a look at the conference page at https://www.wildfly.org/conference/ We’re looking forward to seeing you there!

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WildFly testing with WildFly Glow

This blog post provides information on how to use WildFly Glow to produce a WildFly server in order to test the applications you are developing for WildFly. Note Reading this blog post that provides detailed information on WildFly provisioning in general and WildFly Glow in particular is a good pre-requisite to this blog post. The main goal of the WildFly Glow project is to help you produce a trimmed server that will properly execute your...

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Using WildFly Glow to provision a WildFly server for a RESTEasy based project

An introduction to the usage of WildFly Glow to provision a WildFly server for a RESTEasy based project

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Vlog: Introduction to WildFly Glow

Learn how to slim your WildFly installations by inspecting your application archives with WildFly Glow.

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What's new in WildFly provisioning

This blog post provides information on recent evolutions that have occurred at the WildFly provisioning level. WildFly Glow tooling This new approach to WildFly provisioning has been covered in details in this blog post and in this video published on the WildFly Youtube Channel. We are expecting more content to be published on this topic; stay tuned! WildFly Bootable JAR support in the WildFly Maven Plugin From version 5.0.0.Beta2, the WildFly Maven Plugin allows you...

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