Freedom251 › Application Servers
Open Liberty

Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Open Liberty | Free to use · Open source server runtime | Free |
As openliberty.io lists them, read 29 Sept 2026. The maker's own page has the final word.
Facts from Open Liberty's own pages
- Audience
- The product is presented for Java developers building cloud-native applications and microservices. · openliberty.io, 29 Sept 2026
- Authentication
- The MicroProfile JWT feature can authenticate users with JSON Web Tokens and supports role-based access controls. · openliberty.io, 29 Sept 2026
- Deployment
- Open Liberty can be containerized and deployed to Kubernetes clouds. · openliberty.io, 29 Sept 2026
- Developer mode
- Dev mode provides automated testing, debugger support, and handles compiling, packaging, and deploying during development. · openliberty.io, 29 Sept 2026
- Developer tools
- Liberty Tools supports Eclipse IDE, Visual Studio Code, and IntelliJ IDEA, with code completion, hover descriptions, and configuration diagnostics. · openliberty.io, 29 Sept 2026
- Download channels
- The download page offers stable, beta, and nightly builds; it notes that nightly builds may be unstable and beta content can change. · openliberty.io, 29 Sept 2026
- Integrations
- The site lists Jenkins, Spring, Docker, Grafana, Gradle, Logstash, Prometheus, Maven, Kubernetes, Kibana, and Elasticsearch integrations. · openliberty.io, 29 Sept 2026
- Java standards
- It supports MicroProfile and Jakarta EE features that can be added or removed as needed. · openliberty.io, 29 Sept 2026
- Observability
- The site describes tracing services, gathering metrics, configuring alerts, and consolidating and analyzing logs. · openliberty.io, 29 Sept 2026
- Purpose
- Open Liberty is a lightweight open framework for building cloud-native Java microservices. · openliberty.io, 29 Sept 2026
- Release verification
- The download page says release packages can be checked for authenticity and integrity using provided signature and certificate files. · openliberty.io, 29 Sept 2026
- Startup and memory
- The runtime starts quickly, has a low memory footprint, and supports live reload. · openliberty.io, 29 Sept 2026
- Support
- Community support is available, and IBM offers paid support that includes dedicated help, 24x7 help for business-critical issues, fixes for previous releases, and case support online, by chat, or by phone. · openliberty.io, 29 Sept 2026
- Upgrade compatibility
- Its zero-migration design aims to let existing applications and configurations work across runtime updates, with documented exceptions including security fixes and third-party API requirements. · openliberty.io, 29 Sept 2026
Where Open Liberty stands on Freedom251
- Application Servers#6 of 28
