bleve vs Qdrant
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
Qdrant
High-performance open-source vector search engine
| Feature | bleve | Qdrant |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 93 · Excellent | 98 · Excellent |
| Category | Search Engines | Search Engines |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Rust |
| Setup difficulty | Medium | Medium |
| Min. RAM | 128 MB | 512 MB |
| Deployment | source, binary | docker, kubernetes, helm |
| GitHub stars | ★ 11,226 | ★ 34,758 |
| First released | 2014 | 2021 |
| Replaces | Elasticsearch, Algolia | Pinecone, Algolia |
What are bleve and Qdrant?
bleve
An embeddable modern full-text search and indexing library that lets developers add search to applications without running a separate server. It supports analyzers, faceting, and scoring out of the box.
- Embeddable index
- Text analyzers
- Faceted search
- Pluggable storage
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
bleve vs Qdrant: key differences
Bleve is written in Go, while Qdrant is built with Rust. Bleve is the lighter option, starting around 128 MB of RAM against 512 MB for Qdrant. Bleve is the more established project (first released 2014), while Qdrant arrived in 2021. Qdrant has the considerably larger community, at 34,758 GitHub stars versus 11,226. Qdrant lists first-class Docker deployment; bleve does not.
Why pick each one
Choose bleve if…
- No separate server
- Pure Go integration
Watch out for
- Library not turnkey app
- Manual scaling
Choose Qdrant if…
- Excellent performance
- Easy to deploy
Watch out for
- Specialized for vector workloads
Frequently asked questions
Is bleve or Qdrant better?
Neither is universally better. Qdrant has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are bleve and Qdrant free and open-source?
Yes. bleve is licensed under Apache-2.0 and Qdrant under Apache-2.0. Both can be self-hosted at no software cost.
Can I run bleve and Qdrant with Docker?
bleve: check the project docs for container support. Qdrant: yes.
Which is lighter on resources, bleve or Qdrant?
bleve has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Qdrant. Real-world usage depends on library size, user count, and enabled features.