Lunr.js vs Sonic
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?
Lunr.js
Small full-text search library for the browser
VS
Sonic
Fast, lightweight schema-less search backend
| Feature | Lunr.js | Sonic |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | MIT | MPL-2.0 |
| Language | JavaScript | Rust |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 32 MB |
| Deployment | source | docker, binary |
| GitHub stars | ★ 9,202 | ★ 21,299 |
| First released | 2013 | 2019 |
| Replaces | Algolia, Elasticsearch | Algolia, Elasticsearch |
Why pick each one
Choose Lunr.js if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Mature project with 9.2k GitHub stars
- Written in JavaScript
Frequently asked questions
Is Lunr.js or Sonic better?
Neither is universally better. Sonic has the larger community, while Lunr.js is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Lunr.js and Sonic free and open-source?
Yes. Lunr.js is licensed under MIT and Sonic under MPL-2.0. Both can be self-hosted at no software cost.
Can I run Lunr.js and Sonic with Docker?
Lunr.js: check the project docs for container support. Sonic: yes.