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= Introduction
:description: about Helidon
:keywords: helidon, java, microservices, microprofile

== A collection of Java libraries

Helidon is a collection of Java libraries for writing microservices.

There's no need for any specific tooling or deployment model. Simply use your
 favorite tools !

NOTE: Your microservice is a plain Java application. You do not need an
 application server.

== Cloud-native Java

Helidon libraries interoperate with popular tools from the cloud-native space:

* https://www.docker.com/[Docker]
* https://kubernetes.io/[Kubernetes]
* https://prometheus.io/[Prometheus]
* https://opentracing.io/[OpenTracing]
* https://coreos.com/etcd/[Etcd]

TIP: The <<guides/01_overview.adoc#_getting_started,Helidon Quickstart Examples>>
 contain support for Docker and Kubernetes.

== Helidon SE

Helidon SE is the functional programming style provided by all Helidon
 libraries.

NOTE: Helidon SE gives you full transparency and puts you in control. There is
 no magic!

== Helidon MP

Helidon MP is our MicroProfile implementation.

https://microprofile.io[MicroProfile] is a platform definition that is familiar
 to enterprise Java developers. It provides a declarative programming style that
 is portable. It includes popular Java APIs such as `JAX-RS` and `CDI`.

NOTE: Helidon MP is built on top of the Helidon libraries.