Open Liberty
Open Liberty: A free, open-source Java runtime for containerized Jakarta EE, Java EE, and MicroProfile apps. Ranked #1 of 28 in Application Servers by our editors (9.3/10); pricing: Free plan; best for modern Java teams using containers and CI.
At a glance
- Editor score9.3 / 10
- PricingFree plan
- Best forModern Java teams using containers and CI
- Free planYes
- Paid fromFree
- Java standardBoth
- Facts checked20 Sep 2026
Where it wins
- Composable support for Jakarta EE, Java EE, and MicroProfile
- Dev mode provides automatic application and configuration updates
- Docker, Kubernetes, observability, clustering, Maven, and Gradle support
Where it doesn't
- Self-hosted deployment requires teams to manage the runtime environment
- Enterprise support is separate from the free open-source runtime
- No built-in AI features
Our verdict on Open Liberty
Open Liberty is an open-source Java application server runtime for developing and running cloud-native applications and microservices. It is suited to Java teams that need Jakarta EE, Java EE, or MicroProfile features across Windows, macOS, and Linux. Its composable configuration model lets teams select the capabilities required by an application, while runnable server and application packaging supports local and production deployment. Docker and Kubernetes support also fit container-based delivery, including workflows built around Maven, Gradle, and Jenkins.
Development and operations are central to the product. Dev mode provides automatic application and configuration updates, supporting a shorter feedback loop during development. For production operations, Open Liberty includes health checks, metrics, logging, and distributed tracing. Its integrations with Prometheus, Grafana, Logstash, Kibana, and Elasticsearch support monitoring and log workflows. The optional web-based Admin Center provides server configuration and management, while HTTP session persistence and failover support continuity across cluster members. These capabilities make it a practical fit for teams that want one Java runtime spanning development, deployment, and operations.
Open Liberty itself is free and open source, with IBM offering separate paid enterprise support. The main trade-off is operational ownership: the self-hosted deployment model leaves environment management with the adopting team. It is a focused choice for organizations already working with Java standards, containers, and CI tooling, especially where composable features and cloud-native deployment matter. Teams seeking a managed application server, a hosted operating model, or built-in AI features should consider an alternative. Teams comfortable managing their own runtime can choose Open Liberty for its standards support, container integrations, development workflow, and clustering capabilities.
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Open Liberty pricing
Open Liberty fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Java standard | Both |
| Deployment model | Self_hosted |
| Clustering | Yes |
| Admin console | Yes |
| Container support | Yes |
| Supported operating systems | Windows, macOS, Linux |
| Deployment | Cloud, Self-hosted |
| Platforms | Windows, macOS, Linux |
| Support | Live chat, Phone, Tickets, Community, Docs · 24/7 |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 11 integrations: Maven, Gradle, Docker, Kubernetes, Grafana, Prometheus … |
| Pricing | Free plan |
| Website | openliberty.io |
| Facts checked | 20 Sep 2026 |
Open Liberty integrations
Open Liberty lists 11 integrations on its own site.
- Maven
- Gradle
- Docker
- Kubernetes
- Grafana
- Prometheus
- Jenkins
- Spring
- Logstash
- Kibana
- Elasticsearch
Alternatives to Open Liberty
- WildFlyA free, self-hosted full server for Jakarta EE and MicroProfile teams.9.1
- Eclipse GlassFishA free, security-focused Jakarta EE server with broad administration and deployment options.9.0
- Azul Payara ServerA supported Payara deployment option with strong clustering, containers, and observability.8.9
See all Open Liberty alternatives →
Open Liberty vs the competition
- Open Liberty vs WildFly
- Open Liberty vs Eclipse GlassFish
- Open Liberty vs Azul Payara Server
- Open Liberty vs Apache TomEE
- Open Liberty vs IBM WebSphere Liberty
- Open Liberty vs Red Hat JBoss Enterprise Application Platform
Compare Open Liberty with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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