Elasticsearch vs Qdrant
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
Elasticsearch
Distributed search and analytics engine
VS
Qdrant
High-performance open-source vector search engine
| Feature | Elasticsearch | Qdrant |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 100 · Excellent | 98 · Excellent |
| Category | Search Engines | Search Engines |
| License | Elastic-2.0 | Apache-2.0 |
| Language | Java | Rust |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, kubernetes, bare-metal | docker, kubernetes, helm |
| GitHub stars | ★ 77,969 | ★ 34,775 |
| First released | 2010 | 2021 |
| Replaces | Algolia, Splunk | Pinecone, Algolia |
What are Elasticsearch and Qdrant?
Elasticsearch
Elasticsearch is a distributed, RESTful search and analytics engine capable of addressing a wide variety of use cases. It stores and indexes large volumes of data for fast full-text and structured search.
- Distributed full-text search
- Aggregations and analytics
- Horizontal scalability
- Rich query DSL
Qdrant
Qdrant is an open-source vector similarity search engine and database written in Rust. It powers semantic search, recommendations and retrieval-augmented generation with a convenient API.
- Fast vector similarity search
- Payload filtering with vectors
- Distributed clustering
- REST and gRPC APIs
Elasticsearch vs Qdrant: key differences
Elasticsearch is written in Java, while Qdrant is built with Rust. Licensing differs — Elastic-2.0 for Elasticsearch versus Apache-2.0 for Qdrant. Qdrant is the lighter option, starting around 512 MB of RAM against 2,048 MB for Elasticsearch. Elasticsearch is the more established project (first released 2010), while Qdrant arrived in 2021. Elasticsearch has the considerably larger community, at 77,969 GitHub stars versus 34,775.
Why pick each one
Choose Elasticsearch if…
- Extremely powerful and mature
- Huge ecosystem
Watch out for
- Resource intensive
- Complex to tune
Choose Qdrant if…
- Excellent performance
- Easy to deploy
Watch out for
- Specialized for vector workloads
Frequently asked questions
Is Elasticsearch or Qdrant better?
Neither is universally better. Elasticsearch has the larger community, while Qdrant is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Elasticsearch and Qdrant free and open-source?
Yes. Elasticsearch is licensed under Elastic-2.0 and Qdrant under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Elasticsearch and Qdrant with Docker?
Elasticsearch: yes. Qdrant: yes.
Which is lighter on resources, Elasticsearch or Qdrant?
Qdrant has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Elasticsearch. Real-world usage depends on library size, user count, and enabled features.