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Elasticsearch vs Sonic: catalog facts
Elasticsearch	Sonic
Freemium Free to download and self-host; Elastic sells a hosted cloud service with a free trial.	Free Free and open source under the Mozilla Public License 2.0.
Windows, Self-hosted	Linux, Self-hosted
Full-text, vector and hybrid search through one API Scales horizontally across a cluster	Very low memory use compared with Elasticsearch Schema-less, with no index mapping to define
Running and tuning a cluster takes operational effort Aimed at developers and operators rather than end users	Returns identifiers, not stored documents, so a separate database is needed Uses its own protocol rather than a familiar HTTP API
Downloadable app, Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	License: MPL-2.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.