head to head · open source
Milvus vs postgrest
Milvus has 46,153 GitHub stars, 4,256 forks, 1,405 open issues and last shipped yesterday. postgrest has 27,670 stars, 1,229 forks, 400 open issues and last shipped 2 days ago. Milvus leads on adoption by 67% (46,153 vs 27,670 stars). Milvus is written in Go under Apache-2.0; postgrest is written in Haskell under MIT. Milvus has attracted 9% as many forks as stars, postgrest 4%. 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 | postgrest | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 28K |
| License | Apache-2.0 | MIT |
| Written in | Go | Haskell |
| Last push | 2026-09-18 | 2026-09-17 |
| 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 postgrest if
- You want the postgrest feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Haskell
- You evaluated both and postgrest 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 postgrest
PostgREST is a Haskell written server that serves a fully RESTful API from any existing PostgreSQL database, and it is aimed at developers, database administrators, and operators who want a standards compliant HTTP API without writing and maintaining one from scratch.
read the full postgrest overview →
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Frequently asked questions
Is Milvus or postgrest more popular?
Milvus has 46,153 GitHub stars and postgrest has 27,670. Milvus has the larger community by that measure.
Are Milvus and postgrest free?
Both are open source. Milvus is licensed under Apache-2.0 and postgrest under MIT. Neither carries a licence fee.
What is the difference between Milvus and postgrest?
Milvus is written in Go and postgrest in Haskell. 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 postgrest?
Choose Milvus if you want the larger community (46,153 stars) or its Apache-2.0 licence terms. Choose postgrest if its feature set, stack or MIT licence fits better. Both are self-hostable.