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Helidon

Lightweight, fast, crafted for microservices

Lightweight. Fast. Crafted for Microservices and AI. A cloud-native, open-source Java framework using virtual threads for high-performance microservices.

3K
GitHub Stars
none
TypeScript
medium
Learning Curve
4.0
DX Score
Visit Website → Documentation GitHub

Pricing

Model
free
Free Tier
Apache 2.0 licensed, fully open source

Features

  • ✓ Virtual threads
  • ✓ MicroProfile APIs
  • ✓ JAX-RS support
  • ✓ CDI support
  • ✓ Health checks
  • ✓ Metrics/telemetry
  • ✓ Fault tolerance
  • ✓ GraalVM native
  • ✓ OpenTelemetry

Pros

  • + Oracle-backed
  • + Virtual threads
  • + Cloud-native
  • + GraalVM support
  • + Modern Java

Cons

  • - Smaller community
  • - Oracle ecosystem focus
  • - Less popular than Spring
  • - Fewer tutorials

Best For

enterprise startup

Alternatives

Quarkus Quarkus Micronaut Micronaut Spring Boot Spring Boot
backend microservices cloud-native virtual-threads graalvm