OpenNMS Horizon vs Shinken

A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureOpenNMS HorizonShinken
CategoryMonitoring & StatusMonitoring & Status
LicenseAGPL-3.0AGPL-3.0
LanguageJavaPython
Setup difficultyHardHard
Min. RAM4,096 MB512 MB
Deploymentdocker, bare-metalbare-metal, source
GitHub stars★ 1,168★ 1,136
First released20002009
ReplacesSolarWinds, PRTGSolarWinds

Why pick each one

Choose OpenNMS Horizon if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (1.2k GitHub stars)
  • Written in Java
OpenNMS Horizon details

Choose Shinken if…

  • Scales horizontally
  • Reuses Nagios ecosystem
Shinken details

Frequently asked questions

Is OpenNMS Horizon or Shinken better?

Neither is universally better. OpenNMS Horizon has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.

Are OpenNMS Horizon and Shinken free and open-source?

Yes. OpenNMS Horizon is licensed under AGPL-3.0 and Shinken under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run OpenNMS Horizon and Shinken with Docker?

OpenNMS Horizon: yes. Shinken: check the project docs for container support.

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