Elasticsearch vs Fess

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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FeatureElasticsearchFess
CategorySearch EnginesSearch Engines
LicenseElastic-2.0Apache-2.0
LanguageJavaJava
Setup difficultyHardMedium
Min. RAM2,048 MB2,048 MB
Deploymentdocker, kubernetes, bare-metaldocker, binary
GitHub stars★ 77,808★ 1,124
First released20102009
ReplacesAlgolia, SplunkGoogle Search Appliance

Why pick each one

Choose Elasticsearch if…

  • Extremely powerful and mature
  • Huge ecosystem
Elasticsearch details

Choose Fess if…

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Active community (1.1k GitHub stars)
  • Written in Java
Fess details

Frequently asked questions

Is Elasticsearch or Fess better?

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

Are Elasticsearch and Fess free and open-source?

Yes. Elasticsearch is licensed under Elastic-2.0 and Fess under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Elasticsearch and Fess with Docker?

Elasticsearch: yes. Fess: yes.

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