Compare Zilliz alternatives
Zilliz Cloud is the managed, hosted version of Milvus, offered by the company that created Milvus. It handles the operational overhead of running a vector database at scale, but it's a paid cloud service — the underlying engine is open source, so you can run the same technology yourself for free.
If you want to avoid Zilliz's hosted pricing entirely, Milvus is the open-source engine Zilliz Cloud is built on, so self-hosting it gives you the same core technology without the managed-service cost. Qdrant and Weaviate are worth comparing too if you're choosing a vector database from scratch rather than specifically replacing Zilliz, and Chroma is the simplest option for smaller-scale embedding workloads.
FAQ
Is there a free, open-source alternative to Zilliz?
Yes. Milvus is the open-source vector database that Zilliz Cloud itself is built on, so self-hosting it gets you the same underlying technology for free.
What's the best open-source alternative to Zilliz?
Milvus is the direct match since Zilliz Cloud is just a managed version of it. Qdrant or Weaviate are worth comparing if you want to evaluate other vector databases rather than self-hosting the same engine.
What are the top open-source alternatives to Zilliz?
Browse all open-source alternatives to Zilliz above, or explore the full Vector Database category for more options.