Weaviate vs Xapian
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Weaviate
Open-source vector database for semantic and AI search
VS
Xapian
Mature open-source probabilistic search engine library
| Feature | Weaviate | Xapian |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | BSD-3-Clause | GPL-2.0 |
| Language | Go | C++ |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 128 MB |
| Deployment | docker, kubernetes, helm | bare-metal, source |
| GitHub stars | ★ 16,704 | ★ 877 |
| First released | 2019 | 1999 |
| Replaces | Pinecone, Algolia | Elasticsearch |
Why pick each one
Frequently asked questions
Is Weaviate or Xapian better?
Neither is universally better. Weaviate has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Weaviate and Xapian free and open-source?
Yes. Weaviate is licensed under BSD-3-Clause and Xapian under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Weaviate and Xapian with Docker?
Weaviate: yes. Xapian: check the project docs for container support.