head to head · open source
Milvus vs rxdb
Milvus has 46,166 GitHub stars, 4,257 forks, 1,405 open issues and last shipped today. rxdb has 23,386 stars, 1,175 forks, 17 open issues and last shipped 2 days ago. Milvus leads on adoption by 97% (46,166 vs 23,386 stars). Milvus is written in Go under Apache-2.0; rxdb is written in TypeScript under Apache-2.0. Milvus has attracted 9% as many forks as stars, rxdb 5%. 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 | rxdb | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 23K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 4.3K | ⑂ 1.2K |
| 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 rxdb if
- You want the rxdb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and rxdb 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 rxdb
RxDB is a local first, reactive NoSQL database for JavaScript applications, aimed at developers building offline capable or realtime user interfaces who want client side data storage and sync through their own backend rather than a hosted vendor.
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Frequently asked questions
Is Milvus or rxdb more popular?
Milvus has 46,166 GitHub stars and rxdb has 23,386. Milvus has the larger community by that measure.
Are Milvus and rxdb free?
Both are open source. Milvus is licensed under Apache-2.0 and rxdb under Apache-2.0. Neither carries a licence fee.
What is the difference between Milvus and rxdb?
Milvus is written in Go and rxdb in TypeScript. 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 rxdb?
Choose Milvus if you want the larger community (46,166 stars) or its Apache-2.0 licence terms. Choose rxdb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.