Elasticsearch vs Groonga

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

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FeatureElasticsearchGroonga
CategorySearch EnginesSearch Engines
LicenseElastic-2.0LGPL-2.1
LanguageJavaC
Setup difficultyHardMedium
Min. RAM2,048 MB256 MB
Deploymentdocker, kubernetes, bare-metalbare-metal, source
GitHub stars★ 77,808★ 854
First released20102009
ReplacesAlgolia, SplunkElasticsearch

Why pick each one

Choose Elasticsearch if…

  • Extremely powerful and mature
  • Huge ecosystem
Elasticsearch details

Choose Groonga if…

  • Fast incremental updates
  • Excellent CJK handling
Groonga details

Frequently asked questions

Is Elasticsearch or Groonga better?

Neither is universally better. Elasticsearch has the larger community, while Groonga is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are Elasticsearch and Groonga free and open-source?

Yes. Elasticsearch is licensed under Elastic-2.0 and Groonga under LGPL-2.1. Both can be self-hosted at no software cost.

Can I run Elasticsearch and Groonga with Docker?

Elasticsearch: yes. Groonga: check the project docs for container support.

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