Apache Solr vs Sonic

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

Not the right match-up?
FeatureApache SolrSonic
CategorySearch EnginesSearch Engines
LicenseApache-2.0MPL-2.0
LanguageJavaRust
Setup difficultyHardMedium
Min. RAM1,024 MB32 MB
Deploymentdocker, kubernetes, bare-metaldocker, binary
GitHub stars★ 1,650★ 21,299
First released20062019
ReplacesElasticsearch, AlgoliaAlgolia, Elasticsearch

Why pick each one

Choose Apache Solr if…

  • Mature and battle-tested
  • Powerful faceting
Apache Solr details

Choose Sonic if…

  • Tiny resource footprint
  • Very fast for autocomplete
Sonic details

Frequently asked questions

Is Apache Solr or Sonic better?

Sonic is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Apache Solr if its specific feature set fits your needs better.

Are Apache Solr and Sonic free and open-source?

Yes. Apache Solr is licensed under Apache-2.0 and Sonic under MPL-2.0. Both can be self-hosted at no software cost.

Can I run Apache Solr and Sonic with Docker?

Apache Solr: yes. Sonic: yes.

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