OpenLiberty/open-liberty
Open Liberty is a highly composable, fast to start, dynamic application server runtime environment observed · 2026-09-03
Health v2 · maintenance only
98/100
- Activity 100
- Release rhythm 95
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 28.0
- age_days: 3274
- days_rel: 36
- days_push: 0
- n_releases_24m: 23
Adoption not part of the score
1259 stars · 668 forks observed · 2026-09-03
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Open Liberty is a lightweight, composable Java application server runtime for building cloud-native microservices with MicroProfile and Jakarta EE features. It offers fast startup, low memory footprint, live reload dev mode, and zero-migration upgrades across runtime versions.
Use cases
- run jakarta ee applications on a lightweight server
- build cloud-native java microservices
- develop rest apis with microprofile
- deploy java apps to kubernetes containers
- hot reload java code during development
- expose business logic as mcp tools for ai agents
- monitor microservices with prometheus metrics and opentelemetry
When to choose
- you want a fast-starting, low-memory Java runtime with only the features you need
- you build MicroProfile or Jakarta EE microservices and want zero-migration upgrades
- you want integrated dev mode with live reload, testing, and debugging
- you deploy containerized Java apps on Kubernetes
When to avoid
- you need a non-JVM stack
- you want a minimal embedded HTTP server without an application server model
- you prefer Spring Boot's ecosystem and programming model
Facets
framework · maturity active
web-framework http-server microservices monitoring tracing logging api-framework mcp backend web-development microservices cloud-computing developer-tools apis jvm cloud cross-platform jakarta-ee microprofile application-server java-runtime cloud-native zero-migration dev-mode ibm docker kubernetes
9 sources
- readme: https://github.com/OpenLiberty/open-liberty · fetched 2026-09-03 · 03c81016316f
- homepage: https://openliberty.io · fetched 2026-08-29 · f171a86e235a
- site_page: https://openliberty.io/docs · fetched 2026-08-29 · 0ffa4870e178
- site_page: https://openliberty.io/docs/latest/microprofile.html · fetched 2026-08-29 · 019128a914f4
- site_page: https://openliberty.io/docs/latest/jakarta-ee.html · fetched 2026-08-29 · 79e29ceccb8c
- site_page: https://openliberty.io/docs/latest/zero-migration-architecture.html · fetched 2026-08-29 · a253f9231cc6
- site_page: https://openliberty.io/docs/latest/cloud-native-microservices.html · fetched 2026-08-29 · a8fa6fd9b7e0
- site_page: https://openliberty.io/docs/latest/development-mode.html · fetched 2026-08-29 · 610c73af3b22
- site_page: https://openliberty.io/docs/latest/introduction-monitoring-metrics.html · fetched 2026-08-29 · 2e7fb8879054
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| OpenLiberty/open-liberty | main | 98 |
For agents
markdown · JSON · MCP: product_card(name="OpenLiberty/open-liberty")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem