The Modulith Runtime

Karaf provides modulith runtime for the enterprise, running on premise or on cloud.
Focus on your business code and applications, Apache Karaf deals with the rest

Karaf 4.4.7 has been released! (24/01/25) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.4.6 has been released! (12/04/24) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.4.5 has been released! (10/01/24) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.3.10 has been released! (20/09/23) - This is a maintenance release for Karaf 4.3.x series. It contains a lot of updates and fixes. (Details)

Karaf Decanter 2.10.0 has been released! (24/02/23) - This is a maintenance release for Decanter 2.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.4.3 has been released! (10/01/23) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.4.2 has been released! (23/10/22) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf runtime 4.3.8 has been released! (23/10/22) - This is a new release for Karaf 4.3.x series. It contains bug fixes, dependency updates and couple of improvements. (Details)

Karaf 4.4.1 has been released! (14/7/22) - This is a maintenance release for Karaf 4.4.x series. It contains a lot of updates and fixes. (Details)

Karaf 4.2.16 has been released! (19/6/22) - This is a new release for Karaf 4.2.x series. This release is supposed to be the last one on the 4.2.x series. It contains mainly updates and couple of fixes, including Pax Logging 1.11.15. (Details)

Karaf runtime 4.4.0 has been released! (22/4/22) - This is a new milestone in the Karaf runtime roadmap. This 4.4.x series supports OSGi R8 specification, and include major updates like Pax Web 8.x and Pax Logging 2.1.x. (Details)

Modulith Runtime

Karaf is the modulith runtime, supporting a wide range of frameworks and technologies.

Enterprise Ready

Karaf provides enterprise ready features: shell console, remote access, hot deployment, dynamic configuration and many more. Karaf projects provide additional features like clustering, complete monitoring and alerting, application repository.

On cloud or on premise

Run anywhere (on any machine with Java, cloud, docker images) running your applications with Karaf.

Power your applications with Karaf Runtime

Karaf is a lightweight, powerful, and enterprise ready modulith runtime. It provides all the ecosystem and bootstrapping options you need for your applications. It runs on premise or on cloud. This modulith runtime supports several frameworks and different kind of applications: REST/API, Web, Spring Boot, and much more.

Last version 4.4.7 - (24/01/25)

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Enterprise Features

HTTP Service

Instance

JMX

Configuration

Security

Shell / SSH

Logging

Deployers

Provisioning

Frameworks (JAXRS / Spring Boot / ...)

JVM

Manage bunch of clustered instances with Karaf Cellar.

You have bunch of Karaf Runtime instances running ? You want to manage those instances as one, spreading the configuration, deployment, etc ? Karaf Cellar is for you. Karaf Cellar is a clustering solution for Karaf. It allows you to manage multiple instances, with synchronization between the instances.

Last version 4.2.1 - (21/08/20)

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Discovery

Cluster groups

Sync and distribute resources

DOSGi

Monitoring, alerting, and BAM with Karaf Decanter.

You need a monitoring solution for Karaf and related ? You need a BAM (Business Activity Monitoring) platform for your application ? Karaf Decanter can be very convenient for you ! Decanter provides ready to use monitoring solution. It's also completely extensible and customizable.

Last version 2.10.0 - (24/2/23)

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Collectors

Dispatcher

Alerting

Appenders

Apache Karaf enterprise modulith runtime.

DevOps, Cloud, On Premise, Monitoring, Clustering... Apache Karaf is the perfect project for the companies that need performance and flexibility.

Download the latest ApacheCon slideshow to have an overview of the amazing possibilities that Apache Karaf offer to your business!

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Apache & OpenSource.

Karaf is your project ! Karaf is an Apache Software Foundation project, available under the Apache v2 license.
It's a complete open community, always listening proposals and comments.
Sources, mailing lists, issue tracker: it's fully open, you can access directly.
We also love contributions : don't hesitate to contribute.

Be Involved In The Community | How To Contribute