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Open Liberty
A lightweight open framework for building fast and efficient cloud-native Java microservices
Build cloud-native apps and microservices while running only what you need. Open Liberty is the most flexible server runtime available to Java developers. IBM WebShere Liberty is a lightweight Java runtime that is built on the open source Open Liberty runtime.
14 November 2025
Tutorial
Get started with IBM EASeJ
Discover the full delivery cycle in EASeJ: from code change and GitHub pull‑request builds to automated testing, merging, and cloud deployment of your Java app.
10 November 2025
Article
Easily modernize Java applications in your IDE with AMA Dev Tools
Discover how AMA Dev Tools help developers modernize legacy Java apps faster with automation, migration tools, and IDE integration.
24 October 2025
Article
Demystifying Liberty for WebSphere administrators
Debunk the top myths about IBM Liberty: HA, performance, and migration from WebSphere traditional, with expert video insights from Alasdair Nottingham.
14 October 2025
Article
Effective cloud-native Java app development with Liberty in IntelliJ IDEA
Use Liberty Tools for IntelliJ IDEA to enable rapid, easy, and efficient development of cloud-native Java applications with Open Liberty and WebSphere Liberty.
02 October 2025
Article
Effective cloud-native Java app development with Open Liberty in the Eclipse IDE
Use Liberty Tools for Eclipse to enable fast, easy, and efficient development of cloud native Java applications with WebSphere Liberty and Open Liberty
02 October 2025
Article
Effective cloud native development with Liberty in Visual Studio Code
Liberty Tools is a set of intuitive developer tools that provide a simplified yet powerful development experience. They support popular integrated development environments (IDEs) including Visual Studio Code, available as an extension. These tools introduce capabilities that really empower you to develop, test, debug, and manage applications without having to leave your IDE.
03 June 2024
Article
Beyond the 12 factors: 15-factor cloud-native Java applications
Investigate the revised 15-factor app methodology and examine why it suggests an additional three factors to build truly cloud-native applications.
03 June 2024
Article
Creating cloud-native applications: 12-factor applications
The 12-factor app methodology provides guidelines to help developers design and build cloud-native apps. Explore how to take advantage of each of these factors to create apps, using open source technologies, that thrive in the cloud.
23 May 2024
Article
Where do you get your Java?
This article explores the ever-changing Java ecosystem, from its history, to the various Java distributions, to which one stands above the rest (IBM Semeru Runtimes).
16 May 2024
Open Project
Open Liberty runtime
A lightweight server runtime for building Java microservices and cloud-native apps, providing a complete Eclipse MicroProfile and Java EE implementation.
