head to head · open source
Milvus vs dejavu
Milvus has 46,166 GitHub stars, 4,257 forks, 1,405 open issues and last shipped today. dejavu has 8,466 stars, 512 forks, 69 open issues and last shipped 3 months ago. Milvus leads on adoption by 445% (46,166 vs 8,466 stars). Milvus is written in Go under Apache-2.0; dejavu is written in JavaScript under MIT. Milvus has attracted 9% as many forks as stars, dejavu 6%. Milvus was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Milvus | dejavu | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 8.5K |
| License | Apache-2.0 | MIT |
| Written in | Go | JavaScript |
| Last push | 2026-09-20 | 2026-07-02 |
| Forks | ⑂ 4.3K | ⑂ 512 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Milvus if
- You weight community size — 46K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick dejavu if
- You want the dejavu feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and dejavu fits your workflow better
About Milvus
Milvus is a high performance, cloud native vector database written in Go and C++, designed to power AI applications by efficiently storing, indexing, and searching large scale unstructured data such as text, images, and multi modal embeddings. It implements hardware accelerated approximate nearest neighbor (ANN) search using algorithms like HNSW, FAISS, and DiskANN, and supports both real time streaming updates and batch ingestion. Milvus lives in the GenAI infrastructure ecosystem, serving as the persistent storage and retrieval layer for embedding based workloads including RAG, recommendation, and image search.…
read the full Milvus overview →
About dejavu
Dejavu is a modern, 100% client side web UI for Elasticsearch and OpenSearch that lets developers import, browse, filter and edit index data and build faceted search UIs, aimed at engineers and operations teams who need to inspect a cluster without hand writing queries.
read the full dejavu overview →
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Frequently asked questions
Is Milvus or dejavu more popular?
Milvus has 46,166 GitHub stars and dejavu has 8,466. Milvus has the larger community by that measure.
Are Milvus and dejavu free?
Both are open source. Milvus is licensed under Apache-2.0 and dejavu under MIT. Neither carries a licence fee.
What is the difference between Milvus and dejavu?
Milvus is written in Go and dejavu in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Milvus or dejavu?
Choose Milvus if you want the larger community (46,166 stars) or its Apache-2.0 licence terms. Choose dejavu if its feature set, stack or MIT licence fits better. Both are self-hostable.