head to head · open source
Milvus vs orioledb
Milvus has 46,578 GitHub stars, 4,327 forks, 1,405 open issues and last shipped yesterday. orioledb has 4,304 stars, 201 forks, 131 open issues and last shipped 2 days ago. Milvus leads on adoption by 982% (46,578 vs 4,304 stars). Milvus is written in Go under Apache-2.0; orioledb is written in C under Apache-2.0. Milvus has attracted 9% as many forks as stars, orioledb 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 | orioledb | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 4.3K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | C |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 4.3K | ⑂ 201 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Milvus if
- You weight community size — 47K 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 orioledb if
- You want the orioledb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C
- You evaluated both and orioledb fits your workflow better
About Milvus
What is Milvus? 🐦 Milvus is a high performance vector database built for scale. It powers AI applications by efficiently organizing and searching vast amounts of unstructured data, such as text, images, and multi modal information. 🧑💻 Written in Go and C++, Milvus implements hardware acceleration for CPU/GPU to achieve best in class vector search performance. Thanks to its fully distributed and K8s native architecture, Milvus can scale horizontally, handle tens of thousands of search queries on billions of vectors, and keep data fresh with real time streaming updates. Milvus also supports Standalone mode for…
read the full Milvus overview →
About orioledb
OrioleDB – a cloud native storage engine for PostgreSQL (A solution to PostgreSQL’s wicked problems) OrioleDB is pronounced as OR ee ohl DEE BEE (IPA /ˈɔːr.i.oʊl diː biː/ ) and is named after the golden oriole, a bird which inhabits a range of habitats and migrates in spring symbolizing renewal. OrioleDB is a new storage engine for PostgreSQL, bringing a modern approach to database capacity, capabilities and performance to the world's most loved database platform. OrioleDB consists of an extension, building on the innovative table access method framework and other standard Postgres extension interfaces. By…
read the full orioledb overview →
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Frequently asked questions
Is Milvus or orioledb more popular?
Milvus has 46,578 GitHub stars and orioledb has 4,304. Milvus has the larger community by that measure.
Are Milvus and orioledb free?
Both are open source. Milvus is licensed under Apache-2.0 and orioledb under Apache-2.0. Neither carries a licence fee.
What is the difference between Milvus and orioledb?
Milvus is written in Go and orioledb in C. 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 orioledb?
Choose Milvus if you want the larger community (46,578 stars) or its Apache-2.0 licence terms. Choose orioledb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.