Sonic 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?
Sonic
Fast, lightweight schema-less search backend
VS
Xapian
Mature open-source probabilistic search engine library
| Feature | Sonic | Xapian |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | MPL-2.0 | GPL-2.0 |
| Language | Rust | C++ |
| Setup difficulty | Medium | Medium |
| Min. RAM | 32 MB | 128 MB |
| Deployment | docker, binary | bare-metal, source |
| GitHub stars | ★ 21,299 | ★ 877 |
| First released | 2019 | 1999 |
| Replaces | Algolia, Elasticsearch | Elasticsearch |
Why pick each one
Frequently asked questions
Is Sonic or Xapian better?
Neither is universally better. Sonic has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Sonic and Xapian free and open-source?
Yes. Sonic is licensed under MPL-2.0 and Xapian under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Sonic and Xapian with Docker?
Sonic: yes. Xapian: check the project docs for container support.