Elasticsearch vs Weaviate
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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Elasticsearch
Distributed search and analytics engine
VS
Weaviate
Open-source vector database for semantic and AI search
| Feature | Elasticsearch | Weaviate |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | Elastic-2.0 | BSD-3-Clause |
| Language | Java | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 2,048 MB |
| Deployment | docker, kubernetes, bare-metal | docker, kubernetes, helm |
| GitHub stars | ★ 77,808 | ★ 16,704 |
| First released | 2010 | 2019 |
| Replaces | Algolia, Splunk | Pinecone, Algolia |
Why pick each one
Frequently asked questions
Is Elasticsearch or Weaviate better?
Neither is universally better. Elasticsearch has the larger community, while Weaviate is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Elasticsearch and Weaviate free and open-source?
Yes. Elasticsearch is licensed under Elastic-2.0 and Weaviate under BSD-3-Clause. Both can be self-hosted at no software cost.
Can I run Elasticsearch and Weaviate with Docker?
Elasticsearch: yes. Weaviate: yes.