helidon-io/helidon
Java libraries for writing microservices observed · 2026-08-28
Health v2 · maintenance only
99/100
- Activity 99
- Release rhythm 98
- 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: 12.0
- age_days: 2928
- days_rel: 15
- days_push: 7
- n_releases_24m: 43
Adoption not part of the score
3813 stars · 610 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Helidon is an open-source Java framework of libraries for writing cloud-native microservices, offering both a lightweight Helidon SE API and a MicroProfile/Jakarta EE-based Helidon MP flavor. Its WebServer is built on Java virtual threads, providing high-throughput request handling with simple blocking-style code, plus observability, security, and GraalVM native image support.
Use cases
- build a lightweight REST microservice in Java
- write MicroProfile/JAX-RS services without an application server
- create high-concurrency HTTP services using virtual threads
- compile a Java microservice to a GraalVM native executable
- add health checks, metrics, and OpenTelemetry tracing to Java services
- build cloud-native Java apps deployable on Kubernetes
When to choose
- you want a lightweight, fast Java microservices framework with few dependencies
- you prefer MicroProfile/Jakarta EE APIs like JAX-RS and CDI without a full app server
- you want virtual-thread-based, thread-per-request simplicity with reactive-level throughput
- you need built-in observability, fault tolerance, and Kubernetes-friendly deployment
When to avoid
- your team works primarily in non-JVM languages
- you need a full application server with legacy Java EE features
- you rely on Helidon SE 3.x asynchronous APIs, which changed significantly in Helidon 4
- you want the largest ecosystem and community, where Spring Boot or Quarkus may fit better
Facets
framework · maturity active
web-framework http-server microservices middleware monitoring security configuration-management microservices backend web-development cloud-computing developer-tools jvm cross-platform cloud virtual-threads microprofile netty graalvm cloud-native rest jax-rs observability docker kubernetes
6 sources
- readme: https://github.com/helidon-io/helidon · fetched 2026-08-28 · a528cef2bd3b
- homepage: https://helidon.io · fetched 2026-08-29 · 8537dd4f456a
- site_page: https://helidon.io/docs/v4 · fetched 2026-08-29 · 461e9497e652
- site_page: https://helidon.io/docs/v4/get-started · fetched 2026-08-29 · 2f1763733033
- site_page: https://helidon.io/docs/v4/se/introduction · fetched 2026-08-29 · 35ce815dc0be
- site_page: https://helidon.io/docs/v4/mp/introduction · fetched 2026-08-29 · 4723d5221cd0
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| helidon-io/helidon | main | 99 |
For agents
markdown · JSON · MCP: product_card(name="helidon-io/helidon")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem